Generac Power Systems Portable Generator 04758 0 User Manual

Installation and  
Owner’s Manual  
Air-cooled Automatic  
Standby Generators  
Models:  
04758-0 (6 kW NG, 7 kW LP)  
04759-0 (12 kW NG, 12 kW LP)  
04760-0 (13 kW NG, 15 kW LP)  
Not intended for use as Primary Power in place of utility  
!
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or in life-support applications.  
DANGER  
DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!  
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Table of Contents  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
3.2.2 “Off Position....................................14  
3.2.3 “Manual” Position ............................14  
3.3 Automatic Transfer Operation ....................14  
3.4 Sequence of Automatic Operation................14  
3.5 Manual Transfer Operation ........................15  
Introduction ........................Inside Front Cover  
Read This Manual Thoroughly ........................IFC  
Contents ..........................................................IFC  
Operation and Maintenance ............................IFC  
How to Obtain Service ....................................IFC  
Authorized Dealer Locator Number ....................IFC  
3.5.1 Transfer to Generator  
Safety Rules ........................................................2  
Standards Index..................................................3  
Power Source......................................15  
3.5.2 Transfer Back to Utility  
Section 1 – General Information ..................4  
1.1 Unpacking/Inspection ....................................4  
1.2 Protection Systems ........................................4  
1.3 System Set LED ............................................4  
1.4 Your Generator ..............................................5  
1.5 Specifications ................................................6  
1.5.1 Generator ..........................................6  
1.5.2 Engine ................................................6  
1.6 Fuel Requirements and Recommendations....7  
1.7 Fuel Consumption ........................................7  
1.8 Reconfiguring the Fuel System ......................7  
1.8.1 7 kW, 410CC ......................................7  
1.8.2 12 kW and 15 kW, 990cc Engines ......7  
1.9 Location ........................................................8  
1.9.1 Generator ..........................................8  
1.9.2 Transfer Switch..................................8  
1.10 Battery Installation ........................................9  
1.11 The Battery....................................................9  
Section 2 – Post Installation Start-up  
Power Source......................................15  
3.6 Setting the Exercise Timer ..........................16  
3.7 Protection Systems ......................................16  
3.7.1 Low Oil Pressure Switch ..................16  
3.7.2 High Temperature Switch ................16  
3.7.3 Overcrank ........................................16  
3.7.4 Overspeed ........................................16  
Section 4 – Maintenance ..............................17  
4.1 Fuse ............................................................17  
4.2 Checking the Engine Oil Level ....................17  
4.3 Changing the Engine Oil ..............................17  
4.3.1 Engine Oil Recommendations ..........17  
4.3.2 Oil Change Procedure ......................18  
4.4 Changing the Oil Filter ................................18  
4.5 Changing the Engine Air Cleaner ................18  
4.5.1 7 kW, 12 kW and 15 kW  
Generators........................................18  
4.6 Spark Plug(s) ..............................................19  
4.7 Battery Maintenance....................................19  
4.8 Adjusting Valve Clearance............................20  
4.9 Cooling System............................................20  
4.10 Attention After Submersion ........................21  
4.11 Corrosion Protection ..................................21  
4.12 Out of Service Procedure ............................21  
4.12.1 Removal From Service......................21  
4.12.2 Return to Service..............................21  
4.13 Service Schedule ........................................22  
and Adjustments ......................10  
2.1 Before Initial Start-up..................................10  
2.2 Check Transfer Switch Operation................10  
2.3 Electrical Checks ........................................10  
2.4 Generator Tests Under Load ......................11  
2.5 Checking Automatic Operation....................11  
2.6 Adjusting the Regulator (Natural Gas Only) ..12  
2.7 Engine Governor Adjustment ......................12  
2.7.1 7 kW Units ......................................12  
2.7.2 12 kW and 15 kW Units ..................13  
2.7.3 Additional Corrosion Protection ......13  
2.8 Voltage Regulator Adjustment......................13  
Section 5 – Troubleshooting ........................23  
5.1 Troubleshooting Guide................................23  
Section 6 – Electrical Data............................24  
Section 7 – Exploded Views and  
Parts Lists....................................32  
Section 3 – Operation ....................................13  
3.1 Break-in Procedure......................................13  
3.2 Using the Auto/Off/Manual Switch ..............14  
3.2.1 Auto” Position..................................14  
Section 8 – Mounting Dimensions..............50  
Section 9 – Notes ............................................51  
Section 10 – Warranty....................................52  
1
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IMPORTANT SAFETY INSTRUCTIONS  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe  
operation be copied and posted near the unit’s installation site. Safety should be stressed to  
all operators and potential operators of this equipment.  
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GENERAL HAZARDS  
WARNING:  
The engine exhaust from this product  
contains chemicals known to the state  
of California to cause cancer, birth  
defects or other reproductive harm.  
• For safety reasons, Generac recommends  
that the installation, initial start-up and  
maintenance of this equipment is carried out by a  
Generac Authorized Dealer.  
• The engine exhaust fumes contain carbon monox-  
ide, which can be DEADLY. This dangerous gas, if  
breathed in sufficient concentrations, can cause  
unconsciousness or even death. This exhaust sys-  
tem must be installed properly, in strict compli-  
ance with applicable codes and standards.  
Following installation, you must do nothing that  
might render the system unsafe or in noncompli-  
ance with such codes and standards.  
• Keep hands, feet, clothing, etc., away from drive  
belts, fans, and other moving or hot parts. Never  
remove any drive belt or fan guard while the unit is  
operating.  
• Adequate, unobstructed flow of cooling and venti-  
lating air is critical to correct generator operation.  
Do not alter the installation or permit even partial  
blockage of ventilation provisions, as this can seri-  
ously affect safe operation of the generator. The  
generator MUST be installed outdoors.  
• When working on this equipment, remain alert at  
all times. Never work on the equipment when you  
are physically or mentally fatigued.  
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WARNING:  
This product contains or emits chemicals  
known to the state of California to cause  
cancer, birth defects or other reproductive harm.  
Study these SAFETY RULES carefully before  
installing, operating or servicing this equipment.  
Become familiar with this Owner’s Manual and with  
the unit. The generator can operate safely, efficiently  
and reliably only if it is properly installed, operated  
and maintained. Many accidents are caused by failing  
to  
follow  
simple  
and  
fundamental  
rules  
or precautions.  
Generac cannot possibly anticipate every possible  
circumstance that might involve a hazard. The warn-  
ings in this manual, and on tags and decals  
affixed to the unit are, therefore, not all-inclusive. If  
you use a procedure, work method or operating tech-  
nique Generac does not specifically recommend, you  
must satisfy yourself that it is safe for you and others.  
You also must make sure the procedure, work  
method or operating technique that you choose does  
not render the generator unsafe.  
• Inspect the generator regularly, and contact your  
nearest Generac Authorized Dealer for parts need-  
ing repair or replacement.  
• Before performing any maintenance on the genera-  
tor, disconnect its battery cables to prevent acci-  
dental start up. Disconnect the cable from the bat-  
tery post indicated by a NEGATIVE, NEG or (–)  
first. Reconnect that cable last.  
• Never use the generator or any of its parts as a  
step. Stepping on the unit can stress and break  
parts, and may result in dangerous operating con-  
ditions from leaking exhaust gases, fuel leakage,  
oil leakage, etc.  
DANGER  
Despite the safe design of this generator,  
!
operating this equipment imprudently, neglecting  
its maintenance or being careless can cause  
possible injury or death. Permit only responsible  
and capable persons to operate or maintain this  
equipment.  
Potentially lethal voltages are generated by  
these machines. Ensure all steps are taken to  
render the machine safe before attempting to  
work on the generator.  
Parts of the generator are rotating and/or hot  
during operation. Exercise care near running  
!
generators.  
2
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IMPORTANT SAFETY INSTRUCTIONS  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
• Keep a fire extinguisher near the generator at all  
times. Extinguishers rated ABC” by the National  
Fire Protection Association are appropriate for use  
on the standby electric system. Keep the extin-  
guisher properly charged and be familiar with its  
use. If you have any question pertaining to fire  
extinguishers, consult your local fire department.  
ELECTRICAL HAZARDS  
• All generators covered by this manual produce  
dangerous electrical voltages and can cause fatal  
electrical shock. Utility power delivers extremely  
high and dangerous voltages to the transfer switch  
as does the standby generator when it is in opera-  
tion. Avoid contact with bare wires, terminals, con-  
nections, etc., while the unit is running. Ensure all  
appropriate covers, guards and barriers are in  
place before operating the generator. If you must  
work around an operating unit, stand on an insu-  
lated, dry surface to reduce shock hazard.  
EXPLOSION HAZARDS  
• Do not smoke around the generator. Wipe up any  
fuel or oil spills immediately. Ensure that no com-  
bustible materials are left in the generator com-  
partment, or on or near the generator, as FIRE or  
EXPLOSION may result. Keep the area surround-  
ing the generator clean and free from debris.  
• Gaseous fluids such as natural gas and liquid  
propane (LP) gas are extremely EXPLOSIVE.  
Install the fuel supply system according to applica-  
ble fuel-gas codes. Before placing the home stand-  
by electric system into service, fuel system lines  
must be properly purged and leak tested according  
to applicable code. After installation, you must  
inspect the fuel system periodically for leaks. No  
leakage is permitted.  
• Do not handle any kind of electrical device while  
standing in water, while barefoot, or while hands  
or feet are wet. DANGEROUS ELECTRICAL  
SHOCK MAY RESULT.  
• The National Electrical Code (NEC) requires the  
frame and external electrically conductive parts of  
the generator to be connected to an approved earth  
ground. Local electrical codes also may require  
proper grounding of the generator electrical system.  
• After installing this home standby electrical sys-  
tem, the generator may crank and start at any time  
without warning. When this occurs, load circuits  
are transferred to the STANDBY (generator) power  
source. To prevent possible injury if such a start  
and transfer occur, always set the generator’s  
Auto/Off/Manual switch to its OFF position before  
working on equipment and remove the 5A and 15A  
fuses from the generator control panel.  
STANDARDS INDEX  
In the absence of pertinent standards, codes, regula-  
tions and laws, the published information listed  
below may be used as installation guide for this  
equipment.  
• In case of accident caused by electric shock, imme-  
diately shut down the source of electrical power. If  
this is not possible, attempt to free the victim from  
the live conductor. AVOID DIRECT CONTACT WITH  
THE VICTIM. Use a nonconducting implement,  
such as a rope or board, to free the victim from the  
live conductor. If the victim is unconscious, apply  
first aid and get immediate medical help.  
• Never wear jewelry when working on this equip-  
ment. Jewelry can conduct electricity resulting in  
electric shock, or may get caught in moving com-  
ponents causing injury.  
1. NFPA No. 37, STATIONARY COMBUSTION  
ENGINES AND GAS TURBINES, available from  
the National Fire Protection Association, 470  
Atlantic Avenue, Boston, MA 02210.  
2. NFPA No. 76A, ESSENTIAL ELECTRICAL SYS-  
TEMS FOR HEALTH CARE FACILITIES, avail-  
able same as Item 1.  
3. NFPA No. 54, NATIONAL FUEL GAS CODE,  
available same as Item 1.  
4. NFPA No. 58, AMERICAN NATIONAL STANDARD  
FOR STORAGE AND HANDLING OF LIQUEFIED  
PETROLEUM GAS, available same as Item 1.  
5. NFPA No. 70, NFPA HANDBOOK OF NATIONAL  
ELECTRIC CODE, available same as Item 1.  
6. Article X, NATIONAL BUILDING CODE, available  
from the American Insurance Association, 85  
John Street, New York, N.Y. 10038.  
7. AGRICULTURAL WIRING HANDBOOK, available  
from the Food and Energy Council, 909  
University Avenue, Columbia, MO 65201.  
8. ASAE EP-3634, INSTALLATION AND MAINTE-  
NANCE OF FARM STANDBY ELECTRICAL SYS-  
TEMS, available from the American Society of  
Agricultural Engineers, 2950 Niles Road, St.  
Joseph, MI 49085.  
FIRE HAZARDS  
For fire safety, the generator must be installed and  
maintained properly. Installation always must  
comply with applicable codes, standards, laws and  
regulations. Adhere strictly to local, state and  
national electrical and building codes. Comply  
with regulations the Occupational Safety and  
Health Administration (OSHA) has established.  
Also, ensure that the generator is installed in  
accordance with the manufacturer’s instructions  
and recommendations. Following proper installa-  
tion, do nothing that might alter a safe installation  
and render the unit in noncompliance with the  
aforementioned codes, standards, laws and regu-  
lations.  
9. NFPA No. 30, FLAMMABLE AND COMBUSTIBLE  
LIQUIDS CODE, available same as Item 1.  
3
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
1.2 PROTECTION SYSTEMS  
DANGER  
Unlike an automobile engine, the generator may have  
to run for long periods of time with no operator pres-  
ent to monitor engine conditions. For that reason, the  
engine is equipped with the following systems that  
protect it against potentially damaging conditions:  
Only qualified electricians or contractors should  
attempt such installations, which must comply  
strictly with applicable codes, standards and  
regulations.  
!
1. Low Oil Pressure Sensor  
2. High Temperature Sensor  
There are LED readouts on the control panel to noti-  
fy you that one of these faults has occurred. There is  
also a “System Set” LED that is described below.  
3. Overcrank  
4. Overspeed  
1.1 UNPACKING/INSPECTION  
After unpacking, carefully inspect the contents  
for damage.  
• This standby generator set has been factory sup-  
plied with a weather protective enclosure that is  
intended for outdoor installation only.  
1.3 SYSTEM SET LED  
The “System Set” LED is lit when all of the following  
conditions are true:  
If this generator is used to power electrical load  
circuits normally powered by a utility power  
source, you are required by code to install a  
transfer switch. The transfer switch must effec-  
tively isolate the electrical system from the util-  
ity distribution system when the generator is  
operating (NEC 700, 701 and 702). Failure to  
isolate an electrical system by such means will  
result in damage to the generator and also may  
result in injury or death to utility power work-  
ers due to backfeed of electrical energy.  
1. The Auto/Off/Manual switch is set to the AUTO  
position.  
2. The utility voltage being supplied to the unit is  
being sensed by the Control PCB. If the utility  
sense voltage is not connected to the unit or if it  
is below 168 volts AC, then the system set light  
will flash rapidly. This indicates that if the  
Auto/Off/Manual switch is placed in the Auto posi-  
tion , the generator will start.  
3. The “Not In Auto” dip switch is set to the OFF  
position on the control board.  
If any loss or damage is noted at time of delivery, have  
the person(s) making the delivery note all damage on  
the freight bill or affix his or her signature under the  
consignor's memo of loss or damage.  
4. No alarms are present, for example, low oil pres-  
sure, high temperature, etc.  
If you note loss or damage after delivery, separate the  
damaged materials and contact the carrier for claim  
procedures.  
“Concealed damage” is understood to mean damage  
to the contents of a package that is not in evidence at  
the time of delivery, but is discovered later.  
4
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
1.4 YOUR GENERATOR  
Figure 1.1 – 7 kW, Single Cylinder GH-410 Engine  
Control Panel  
Data Decal  
Exhaust  
Enclosure  
Air Filter  
Fuel Regulator  
Battery Compartment  
Oil Filter  
Figure 1.2 – 12 kW/15 kW, V-twin GT-990 Engine  
Data  
Decal  
Control  
Panel  
Oil Dipstick  
Air Filter  
Exhaust  
Enclosure  
Fuel Regulator  
Battery Compartment  
Oil Filter  
5
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
1.5 SPECIFICATIONS  
1.5.1 GENERATOR  
Model 04758  
6,000 NG/7,000 LP  
120/240  
Model 04759  
12,000 NG/12,000 LP 13,000 NG/15,000 LP†  
Model 04760  
Rated Max. Continuous Power Capacity (Watts*)  
Rated Voltage  
120/240  
120/240  
Rated Max. Continuous Load Current (Amps)  
120 Volts +  
50.0 NG/58.3 LP  
100.0 NG/100.0 LP  
108.3 NG/125.0 LP  
240 Volts  
25.0 NG/29.2 LP  
50.0 NG/50.0 LP  
54.2 NG/62.5 LP  
Main Line Circuit Breaker  
Phase  
Number of Rotor Poles  
Rated AC Frequency  
Power Factor  
30 Amp  
50 Amp  
70 Amp  
1
2
1
2
1
2
60 Hz  
1
60 Hz  
1
60 Hz  
1
Recommended Air Filter  
Battery Requirement  
Generac Part # C8127 Generac Part # C8127 Generac Part # C8127  
Group 26/26R  
12 Volts and  
Group 26/26R  
12 Volts and  
Group 26/26R  
12 Volts and  
350 Cold-cranking  
Amperes Minimum  
550 Cold-cranking  
Amperes Minimum  
550 Cold-cranking  
Amperes Minimum  
Weight  
452 Pounds  
68 db (A)  
470 Pounds  
70.5db (A)  
-20°F (-28.8°C) to 104°F (40°C)  
487 Pounds  
71.5 db (A)  
Output Sound Level @ 23 ft (7m) at full load  
Normal Operating Range  
* Maximum wattage and current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Maximum power  
decreases about 3.5 percent for each 1,000 feet above sea level; and also will decrease about 1 percent for each 6° C (10° F) above 16° C (60° F).  
+ Total current in TWO separate curcuits. Current in each curcuit must not exceed the value stated for 240V.  
1.5.2 ENGINE  
Model 04758  
GH-410  
Model 04759  
GT-990  
Model 04760  
GT-990  
Type of Engine  
Number of Cylinders  
Rated Horsepower  
Displacement  
1
2
2
14.5 @ 3,600 rpm  
410cc  
30 @ 3,600 rpm  
992cc  
30 @ 3,600 rpm  
992cc  
Cylinder Block  
Aluminum w/Cast  
Iron Sleeve  
Aluminum w/Cast  
Iron Sleeve  
Aluminum w/Cast  
Iron Sleeve  
Valve Arrangement  
Ignition System  
Recommended Spark Plug  
Spark Plug Gap  
Overhead Valves  
Solid-state w/Magneto  
RC12YC  
Overhead Valves  
Solid-state w/Magneto  
RC12YC  
Overhead Valves  
Solid-state w/Magneto  
RC12YC  
0.76 mm (0.030 inch) 0.508 mm (0.020 inch) 0.508 mm (0.020 inch)  
Compression Ratio  
Starter  
8.6:1  
12 Vdc  
9.5:1  
12 Vdc  
9.5:1  
12Vdc  
Oil Capacity Including Filter  
Recommended Oil Filter  
Recommended Air Filter  
Operating RPM  
Approx. 1.5 Qts  
Approx. 2.5 Qts  
Approx. 2.5 Qts  
Generac Part # 70185 Generac Part # 70185 Generac Part # 70185  
Generac Part # 0C8127 Generac Part # 0C8127 Generac Part # 0C8127  
3,600  
3,600  
3,600  
6
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
3. Disconnect wire #0 and wire #14 from the gas  
1.6 FUEL REQUIREMENTS  
solenoid located on the top of the demand regu-  
lator.  
AND RECOMMENDATIONS  
With LP gas, use only the vapor withdrawal  
system. This type of system uses the vapors formed  
above the liquid fuel in the storage tank.  
4. Remove the demand regulator by rotating coun-  
terclockwise.  
5. Remove the brass hose fitting from the outlet port  
of the demand regulator.  
The engine has been fitted with a fuel carburetion  
system that meets the specifications of the 1997  
California Air Resources Board for tamper-proof dual  
fuel systems. The unit will run on natural gas or LP  
gas, but it has been factory set to run on natural gas.  
Should the primary fuel need to be changed to LP  
gas, the fuel system needs to be reconfigured. See  
Section 1.8 for instructions on reconfiguration of the  
fuel system.  
Recommended fuels should have a Btu content of at  
least 1,000 BTU’s per cubic foot for natural gas; or at  
least 2,520 BTU’s per cubic foot for LP gas. Ask your  
fuel supplier for the BTU content of your fuel.  
6. Remove the brass metering jet (loosen counter-  
clockwise) from the housing port of the demand  
regulator located on the side of the regulator.  
7. Install new LP metering jet (tighten clockwise) in  
the outlet port of the demand regulator.  
8. Refit the brass hose fittings to the outlet port of  
the demand regulator.  
9. Reverse procedure steps 1-4 to reinstall demand  
regulator.  
10. Reverse the procedure to convert back to natural  
gas.  
Figure 1.3 – Demand Regulator  
Fuel pressure for both natural gas and liquid  
propane set ups should be 11 inches to 14 inches  
of water column (0.6 psi) at all load ranges.  
FUEL HOSE  
FUEL HOSE  
BRASS HOSE  
FITTING  
BRASS HOSE  
FITTING  
NOTE:  
FUEL JET  
HOUSING  
PORTS  
HOUSING  
PORTS  
A separate gas line and regulator may be needed  
to assure proper gas pressure (11-14”) to the gen-  
erator. Low gas pressure can cause hard starting  
and could affect engine durability.  
1.7 FUEL CONSUMPTION  
Model #  
Nat. Gas (*)  
LP Vapor (**)  
1/2 Load Full Load 1/2 Load  
Full Load  
1.21/44.1  
2.17/79.0  
2.80/102.3  
NG FUEL SYSTEM  
04758  
04759  
04760  
74  
105  
185  
240  
0.91/33  
1.34/48.9  
1.73/63.2  
LP FUEL SYSTEM  
114  
NOTE:  
148.5  
*Natural gas is in cubic feet per hour.  
**LP is in gallons per hour/cubic feet per hour.  
The natural gas adjustment screw is preset during  
installation and should not need any further  
adjustment.  
DANGER  
Gaseous fuels such as natural gas and liquid  
propane (LP) gas are highly explosive. Even the  
slightest spark can ignite such fuels and cause  
an explosion. No leakage of fuel is permitted.  
Natural gas, which is lighter than air, tends to  
collect in high areas. LP gas is heavier than air  
and tends to settle in low areas.  
1.8.2 12KW AND 15KW, 990CC ENGINES  
To reconfigure the fuel system from NG to LP,  
follow these steps:  
NOTE:  
The primary regulator for the propane supply is  
NOT INCLUDED with the generator. You must sup-  
ply a fuel pressure of 11 to 14 inches of water col-  
umn (0.6 psi) to the fuel inlet of the generator.  
1.8 RECONFIGURING THE  
FUEL SYSTEM  
1. Turn off the main gas supply.  
2. Remove the three carburetor fuel hoses from the  
outlet ports of the demand regulator.  
3. Disconnect wire #0 and wire #14 from the gas  
solenoid located on the top of the demand regu-  
lator.  
1.8.1 7 KW, 410CC  
To reconfigure the fuel system from NG to LP,  
follow these steps:  
1. Turn the main gas supply off.  
2. Remove the carburetor fuel hose from the outlet  
4. Remove the demand regulator from the enclosure  
port of the demand regulator (Figure 1.3).  
by rotating counterclockwise.  
7
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
5. Remove the small brass hose fitting from the idle  
1.9 LOCATION  
Install the generator set, in its protective enclosure,  
outdoors, where adequate cooling and ventilating air  
is always available. Consider these factors:  
circuit port of the regulator housing.  
6. Remove the small jet (0D5698A) located in the  
side of the regulator housing and install it into the  
small threaded hole in the idle circuit port on the  
regulator.  
1.9.1 GENERATOR  
7. Refit the brass hose fitting to the idle circuit port  
of the regulator. Use pipe thread sealant to reseal  
the threads on the hose fitting.  
8. Identify both adjustment screws.  
NOTE:  
• Install the unit where air inlet and outlet openings  
will not become obstructed by leaves, grass, snow,  
etc. If prevailing winds will cause blowing or drift-  
ing, you may need to consider using a windbreak  
to protect the unit.  
One adjustment screw can be accessed from the  
front of the unit and the second can be accessed  
from the back of the unit.  
• Install the generator on high ground where water  
levels will not rise and endanger it.  
• Allow sufficient room on all sides of the generator  
for maintenance and servicing. A good rule is to  
allow 3 feet of space on all sides.  
• Where strong prevailing winds blow from one  
direction, face the generator air inlet openings to  
the prevailing winds.  
9. To adjust the system to run on LP fuel, turn the  
adjuster screw that is accessed from inside the  
front of the unit 1/4 turn clockwise. This will set  
the system for max power and best performance  
on LP fuel.  
10. The fuel system will now allow the engine to run  
on LP fuel. It may be necessary to make minor  
adjustments to the preset screw settings to  
achieve maximum power. If there are problems  
with the unit producing maximum power, follow  
the procedure in Section 2.6 Adjusting the  
Regulator”.  
• Install the generator as close as possible to the fuel  
supply, to reduce the length of piping.  
• Install the generator as close as possible to the  
transfer switch. HOWEVER, REMEMBER THAT  
LAWS OR CODES MAY REGULATE THE DIS-  
TANCE.  
1.9.2 TRANSFER SWITCH  
11. Reverse procedure steps 1-4 to reinstall the  
demand regulator.  
1.9.2.1 7 kW, 12 kW and 15 kW Units  
Transfer switches for use with these generators are  
sold separately and can be purchased from Generac  
Authorized Dealers.  
Figure 1.4 - Demand Regulator  
FUEL HOSE  
• Install the transfer switch on a firm, sturdy sup-  
porting structure.  
To prevent switch distortion, level the switch if nec-  
essary. This can be done by placing washers  
between the switch enclosure and mounting sur-  
face.  
BRASS HOSE  
FITTING  
BRASS HOSE  
IDLE CIRCUIT  
FITTING  
SMALL  
FUEL JET  
PORT  
RE  
R
1
NP  
REGULATOR  
HOUSING PORT  
ADJUSTER  
SCREWS  
• Never install the switch where water or any corro-  
sive substance might drip onto the enclosure.  
• Protect the switch at all times against excessive  
moisture, dust, dirt, lint, construction grit and cor-  
rosive vapors.  
TURN CLOCKWISE  
1/4 TURN TO SET  
FOR LP FUEL.  
• Failure to utilize a Generac/Guardian transfer  
switch with this generator will void the warranty.  
Transfer switches available for these generators are:  
• Model 004678-0 — 100 Amp, 2 Pole, 250 Volt  
NEMA 1 (indoor rated) or  
• Model 004635-0 — 200 Amp, 2 Pole, 250 Volt  
NEMA 3R (outdoor rated)  
8
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Section 1 — General Information  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
NOTE:  
1.10 BATTERY INSTALLATION  
Fill the battery with the proper electrolyte fluid if nec-  
essary and have the battery fully charged before  
installing it.  
Your generator is equipped with a battery trickle  
charger that is active when your unit is set up for  
automatic operation. With the battery installed  
and utility power source voltage available to the  
transfer switch, the battery receives a trickle  
charge while the engine is not running, to prevent  
self-discharge. The trickle charger is designed to  
help extend the life of your battery by maintaining  
the battery when the unit is not running. The  
trickle charge feature cannot be used to recharge  
a discharged battery.  
Before installing and connecting the battery, complete  
the following steps:  
1. Set the generator's Auto/Off/Manual switch to  
OFF.  
2. Turn off utility power supply to the transfer  
switch.  
3. Remove the 5 amp and 15 amp fuses from the  
generator control panel.  
1.11 THE BATTERY  
Servicing of the battery is to be performed or super-  
vised by personnel knowledgeable of batteries and  
the required precautions. Keep unauthorized person-  
nel away from batteries.  
If the Auto/Off/Manual switch is not set to its  
OFF position, the generator can crank and start  
as soon as the battery cables are connected. If  
the utility power supply is not turned off,  
sparking can occur at the battery posts and  
cause an explosion.  
When replacing the battery, use the following type of  
battery: Group 26/26R 12-volt battery with a rating of  
350 cold-cranking amps minimum for 7 kW; 550  
cold-cranking amps minimum for 12 and 15 kW at  
-18º C (0º F) minimum. When using a maintenance-  
free battery, it is not necessary to check the specific  
gravity or electrolyte level. Have these procedures  
performed at the intervals specified in the “Service  
Schedule.” A negative ground system is used. Battery  
connections are shown on the wiring diagrams. Make  
sure the battery is correctly connected and terminals  
are tight. Observe battery polarity when connecting  
the battery to the generator set.  
Battery cables were factory connected at the genera-  
tor (Figure 1.5). Connect cables to battery posts as  
follows:  
4. Connect the red battery cable (from starter con-  
tactor) to the battery post indicated by a positive,  
POS or (+).  
5. Connect the black battery cable (from frame  
ground) to the battery post indicated by a nega-  
tive, NEG or (—).  
6. Replace the 5 amp and 15 amp fuses in the gen-  
erator control panel.  
DANGER  
Do not dispose of the battery in a fire. The  
battery is capable of exploding.  
NOTE:  
Damage will result if battery connections are made  
in reverse.  
A battery presents a risk of electrical shock  
and high short circuit current. The following  
precautions are to be observed when working  
on batteries:  
Figure 1.5 – Battery Cable Connections  
• Remove watches, rings or other metal objects;  
• Use tools with insulated handles;  
• Wear rubber gloves and boots;  
• Do not lay tools or metal parts on top of the  
battery; and  
• Disconnect charging source prior to connecting or dis-  
connecting battery terminals.  
Do not open or mutilate the battery. Released  
electrolyte has been known to be harmful to  
!
the skin and eyes, and to be toxic.  
The electrolyte is a dilute sulfuric acid that is  
harmful to the skin and eyes. It is electrically  
!
conductive and corrosive.  
9
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Section 2 — Post Installation Start-up and Adjustments  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
The following procedures are to be observed:  
2.2 CHECK TRANSFER SWITCH  
• Wear full eye protection and protective clothing;  
• Where electrolyte contacts the skin, wash it off  
immediately with water;  
• Where electrolyte contacts the eyes, immediately  
flush thoroughly with water and seek medical  
attention; and  
OPERATION  
Refer to Section 3.5 (Page 15), of the owner’s manual  
for manual operation procedures.  
DANGER  
• Spilled electrolyte is to be washed down with an  
acid neutralizing agent. A common practice is to  
use a solution of 1 pound (500 grams) bicarbonate  
of soda to 1 gallon (4 liters) or water. The bicar-  
bonate of soda solution is to be added until the  
evidence of reaction (foaming) has ceased. The  
resulting liquid is to be flushed with water and the  
area dried.  
Do not attempt manual transfer switch opera-  
tion until all power voltage supplies to the  
transfer switch have been positively turned off.  
Failure to turn off all power voltage supplies  
will result in extremely hazardous and possibly  
fatal electrical shock.  
2.3 ELECTRICAL CHECKS  
Lead-acid batteries present a risk of fire  
because they generate hydrogen gas. The  
following procedures are to be followed:  
Complete electrical checks as follows:  
1. Turn on the utility power supply to the transfer  
switch using the means provided (such as a utili-  
ty main line circuit breaker).  
• DO NOT SMOKE when near the battery;  
• DO NOT cause flame or spark in battery area; and  
• Discharge static electricity from your body before  
touching the battery by first touching a grounded  
metal surface.  
DANGER  
The transfer switch is now electrically “hot.”  
Contact with “hot” parts will result in extreme-  
ly hazardous and possibly fatal electrical shock.  
Proceed with caution.  
Be sure the Auto/Off/Manual switch is set to  
the OFF position before connecting the battery  
!
cables. If the switch is set to AUTO or MANUAL,  
the generator can crank and start as soon as  
the battery cables are connected.  
2. Use an accurate AC voltmeter to check utility  
power source voltage across terminals N1 and  
N2. Nominal line-to-line voltage should be 240  
volts AC.  
3. Check utility power source voltage across termi-  
nals N1 and the transfer switch neutral lug; then  
across terminal N2 and neutral. Nominal line-to-  
neutral voltage should be 120 volts AC.  
4. When certain that utility supply voltage is com-  
patible with transfer switch and load circuit rat-  
ings, turn OFF the utility power supply to the  
transfer switch.  
5. Set the generator's main circuit breaker to its  
OFF (or open) position. Initial tests will be con-  
ducted at no-load condition.  
6. On the generator panel, set the Auto/Off/Manual  
switch to MANUAL. The engine should crank and  
start.  
Be sure the utility power supply is turned off,  
or sparking may occur at the battery posts as  
you attach the cables and cause an explosion.  
2.1 BEFORE INITIAL START-UP  
Before starting, complete the following:  
1. Set the generator’s main circuit breaker to its  
OFF (or open) position.  
2. Set the generator's Auto/Off/Manual switch to the  
OFF position.  
3. Turn OFF the utility power supply to the transfer  
switch using the means provided (such as the  
utility main line circuit breaker).  
4. Check the engine crankcase oil level and, if nec-  
essary, fill to the dipstick FULL mark with the  
recommended oil. Do not fill above the FULL  
mark.  
5. Check the fuel supply. Gaseous fuel lines must  
have been properly purged and leak tested in  
accordance with applicable fuel-gas codes. All  
fuel shutoff valves in the fuel supply lines must be  
open.  
7. Let the engine warm up for about five minutes to  
allow internal temperatures to stabilize. Then, set  
the generator’s main circuit breaker to its ON (or  
closed) position.  
DANGER  
Proceed with caution! Generator power voltage  
is now supplied to the transfer switch. Contact  
with live transfer switch parts will result in  
dangerous and possibly fatal electrical shock.  
Never operate the engine with the oil level  
below the “Add” mark on the dipstick. Doing  
!
this could damage the engine.  
10  
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Section 2 — Post Installation Start-up and Adjustments  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
8. Connect an accurate AC voltmeter and a frequen-  
8. Turn ON electrical loads. Apply an electrical load  
equal to the full rated wattage/amperage capacity  
of the installed generator.  
9. Connect an accurate AC voltmeter and a frequen-  
cy meter across terminal lugs E1 and E2. Voltage  
should be greater than 230 volts; frequency  
should be greater than 58 Hertz.  
10. Let the generator run at full rated load for 20-30  
minutes. Listen for unusual noises, vibration or  
other indications of abnormal operation. Check  
for oil leaks, evidence of overheating, etc.  
11. When testing under load is complete, turn OFF  
electrical loads.  
cy meter across transfer switch terminal lugs E1  
and E2. Voltage should be 242-252 volts; fre-  
quency should read about 61-63 Hertz.  
9. Connect the AC voltmeter test leads across termi-  
nal lug E1 and neutral; then across E2 and neu-  
tral. In both cases, voltage reading should be 121-  
126 volts AC.  
10. Set the generator’s main circuit breaker to its  
OFF (or open) position. Let the engine run at no-  
load for a few minutes to stabilize internal engine  
generator temperatures.  
11. Set the generator's Auto/Off/Manual switch to  
OFF. The engine should shut down.  
12. Set the generator's main circuit breakers to their  
NOTE:  
OFF (or open) positions.  
13. Let the engine run at no-load for a few minutes.  
14. Set the Auto/Off/Manual switch to OFF. The  
engine should shut down.  
It is important that you do not proceed until you  
are certain that generator AC voltage and frequen-  
cy are correct and within the stated limits.  
Generally, if both AC frequency and voltage are  
high or low, the engine governor requires adjust-  
ment. If frequency is correct, but voltage is high or  
low, the generator’s voltage regulator requires  
adjustment.  
2.5 CHECKING AUTOMATIC  
OPERATION  
To check the system for proper automatic operation,  
proceed as follows:  
1. Set the generator’s main circuit breaker to it’s  
OFF (or open) position.  
2.4 GENERATOR TESTS UNDER LOAD  
To test the generator set with electrical loads applied,  
proceed as follows:  
2. Check that the Auto/Off/Manual switch is set to  
OFF.  
1. Set generator’s main circuit breaker to its OFF  
(or open) position.  
3. Turn OFF the utility power supply to the transfer  
switch using the means provided (such as a utili-  
ty main line circuit breaker).  
4. Manually set the transfer switch to the UTILITY  
position, i.e., load terminals connected to the util-  
ity power source side.  
5. Turn ON the utility power supply to the transfer  
switch, using the means provided (such as a util-  
ity main line circuit breaker).  
2. Set the generator's Auto/Off/Manual switch  
to OFF.  
3. Turn OFF the utility power supply to the transfer  
switch, using the means provided (such as a util-  
ity main line circuit breaker).  
6. Set the Auto/Off/Manual switch to AUTO. Then set  
the generator’s main circuit breaker to its ON (or  
closed) position. The system is now ready for  
automatic operation.  
Do not attempt manual transfer switch opera-  
tion until all power voltage supplies to the  
transfer switch have been positively turned off.  
Failure to turn off all power voltage supplies  
will result in extremely hazardous and possibly  
fatal electrical shock.  
7. Turn OFF the utility power supply to the transfer  
switch.  
With the Auto/Off/Manual switch at AUTO, the engine  
should crank and start when the utility source power  
is turned OFF. After starting, the transfer switch  
should connect load circuits to the standby side. Let  
the system go through its entire automatic sequence  
of operation.  
4. Manually set the transfer switch to the STANDBY  
position, i.e., load terminals connected to the  
generator's E1/E2 terminals. The transfer switch  
operating lever should be down.  
5. Set the generator's Auto/Off/Manual switch to  
MANUAL. The engine should crank and start  
immediately.  
With the generator running and loads powered by gen-  
erator AC output, turn ON the utility power supply to  
the transfer switch. The following should occur:  
6. Let the engine stabilize and warm up for a few  
minutes.  
7. Set the generator’s main circuit breaker to its ON  
(or closed) position. Loads are now powered by  
the standby generator.  
• After about six seconds, the switch should transfer  
loads back to the utility power source.  
• About one minute after retransfer, the engine  
should shut down.  
11  
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Section 3 — Operation  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Figure 2.2 — Placement of Regulator  
2.6 ADJUSTING THE REGULATOR  
(NATURAL GAS ONLY)  
Although the generator has been factory set to pro-  
vide maximum power, it may be necessary in some  
areas to adjust this setting. Because natural gas has  
different BTU or power content across the country  
the engine may not perform as designed.  
If you experience engine problems at high or full load  
conditions follow these steps. It will require a fre-  
quency meter to perform this procedure.  
1. Turn off utility power to the main distribution panel  
in the house. This can be done by switching the  
service main breaker to the off or open position.  
2. Allow the generator to start before loading the  
generator. Confirm the no-load frequency with  
the roof open and door off is set at 63-63.5 Hz.  
Transfer load to emergency circuits.  
3. Turn on appliances, lights, pumps, etc., that are  
on the emergency circuits in an attempt to fully  
load the generator. Be cautious not to overload  
the generator. Use the following chart as a guide:  
Adjustment Screw  
7. Turn utility power to the main distribution panel  
back on. This can be done by switching the serv-  
ice main breaker to the on or closed position.  
Allow the generator to shut down.  
Unit  
7 kW  
12 kW  
15 kW  
120 Volts  
50.0 amps  
100.0 amps  
108.3 amps  
240 Volts  
25.0 amps  
50.0 amps  
54.2 amps  
Do not make any unnecessary adjustments.  
Factory settings are correct for most applica-  
tions. However, when making adjustments, be  
careful to avoid overspeeding the engine.  
!
If this procedure or equipment are not available to  
you, locate the Generac Guardian Dealer nearest you  
and they can perform the adjustments.  
4. When full load has been achieved. Connect a fre-  
quency meter to the output lugs of the generator’s  
main line circuit breaker.  
NOTE:  
5. The fuel regulator is fitted with one (7 kW), or two  
(12 & 15 kW) adjustment screws. While watching  
the frequency meter, slowly turn the adjustment  
screw clockwise or counterclockwise one at a  
time until highest frequency is read on the meter.  
Only limited adjustment is available between the  
set pins. Under no circumstances should any of  
the pins be removed (Figures 2.1 and 2.2).  
A service fee may be charged for this adjustment.  
2.7 ENGINE GOVERNOR ADJUSTMENT  
If both AC frequency and voltage are correspondingly  
high or low, adjust the engine governor as follows:  
2.7.1 7 KW UNITS  
Figure 2.1 — Dual Fuel Regulators  
1. Loosen the governor clamp bolt (Figure 2.3 on  
6 and 7 kW  
12, 13, and 15 kW  
page 13).  
2. Hold the governor lever at its wide open throttle  
position, and rotate the governor shaft clockwise  
as far as it will go. Then, tighten the governor  
lever clamp bolt to 70 inch-pounds (8 N-m).  
3. Start the generator; let it stabilize and warm up  
at no-load.  
Adjustment  
Set  
Pins  
Adjustment  
Screw  
(Both sides)  
Screw  
(One Side  
Only)  
4. Connect a frequency meter across the generators  
AC output leads.  
5. Turn the speed adjust nut to obtain a frequency  
reading of 63 Hz.  
6. When frequency is correct at no load, check the  
AC voltage reading. If voltage is incorrect, the volt-  
age regulator may require adjustment.  
6. When the highest frequency is reached maximum  
power has been set. Then turn both adjustment  
screws 1/4 turn counterclockwise. Regulator is  
now set.  
12  
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Section 3 — Operation  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Figure 2.3 — Engine Governor Adjustment  
2.7.3 ADDITIONAL CORROSION  
PROTECTION  
Periodically spray all engine linkage parts and brack-  
ets with corrosion inhibiting spray such as WD-40 or  
a comparable product.  
Idle Spring  
2.8 VOLTAGE REGULATOR  
Governor  
Shaft  
(Rotate  
Clockwise)  
ADJUSTMENT  
With the frequency between 62-63.5 Hertz, slowly  
turn the slotted potentiometer (Figure 2.5) until line  
voltage reads 244-252 volts.  
NOTE:  
You must remove the access panel on top of the  
control panel to adjust the voltage regulator.  
No Load Idle  
Adjustment Screw  
Governor Clamp Bolt  
Figure 2.5 – Voltage Adjustment Potentiometer  
2.7.2 12 KW AND 15 KW UNITS  
1. Loosen governor clamp bolt (See Figure 2.3).  
2. Completely remove the idle spring.  
3. With governor arm at wide open throttle position,  
rotate governor shaft fully clockwise. Tighten  
clamp bolt to 84 inch-pounds.  
4. Start unit and apply full load. Use full load speed  
adjust screw (Figure 2.4) to adjust frequency to  
58 Hz.  
5. Remove load, stop engine, loosen the idle adjust  
screw and reconnect the idle spring.  
6. Using your hand, push the governor arm to the  
closed throttle position. Make sure the idle spring  
does not stretch at all.  
NOTE:  
7. Restart the unit.  
The voltage regulator is housed above the genera-  
tor's control panel. The regulator maintains a volt-  
age in direct proportion to frequency. For example,  
at 62 Hertz, line-to-neutral voltage will be 124 volts.  
8. Slowly turn the idle adjust screw to adjust the no-  
load idle frequency to 63-63.5 Hz.  
9. The governor is now set.  
Figure 2.4 — Full Load Speed Adjust Screw  
3.1 BREAK-IN PROCEDURE  
Full Load Speed Adjust Screw  
Once the unit has been installed, with utility power  
connected to the transfer switch, and all electrical  
checks have been made, it is strongly recommended  
that the following “Break-in Procedure” be completed  
to ensure correct generator operation in the future.  
1. Set the generator’s Auto/Off/Manual switch to  
AUTO.  
2. Turn OFF the utility power supply to the transfer  
switch using the means provided (such as a utili-  
ty main line circuit breaker).  
3. The unit will start, and the transfer switch will  
transfer to standby.  
4. Run the unit for one hour at 25 percent load.  
5. Run the unit for one hour at 50 percent load.  
6. Run the unit for one hour at 75 percent load.  
7. Run the unit for one hour at 100 percent load.  
13  
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Section 3 — Operation  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
8. Turn ON the utility power supply to the transfer  
3.3 AUTOMATIC TRANSFER  
switch, which will allow the transfer switch to  
transfer back to utility power. The unit will con-  
tinue to run for one minute and then shut down.  
9. Allow the unit to cool.  
OPERATION  
To select automatic operation, do the following:  
1. Make sure the transfer switch main contacts are  
set to their “Utility” position, i.e., loads connected  
to the utility power source (Figure 3.2, Page 15).  
2. Be sure that normal utility power source voltage  
is available to transfer switch terminal lugs N1  
and N2.  
10. Drain the oil and remove the oil filter. Replace the  
oil filter according to Section 4.4, “Changing the  
Oil Filter” (Page 18). Replace the oil with synthet-  
ic oil as recommended in Section 4.3, “Changing  
the Engine Oil” (Page 17).  
3. Set the generator’s Auto/Off/Manual switch to  
11. The generator is now ready for service.  
AUTO.  
4. Set the generator’s main circuit breaker to its ON  
(or closed) position.  
With the preceding steps complete, the generator will  
start automatically when utility source voltage drops  
below a preset level. After the unit starts, loads are  
transferred to the standby power source. Refer to  
Section 3.4, “Sequence of Automatic Operation.”  
3.2 USING THE AUTO/OFF/MANUAL  
SWITCH (FIGURE 3.1)  
3.2.1 “AUTO” POSITION  
Selecting this switch position activates fully automatic  
system operation. It also allows you to start and exercise  
the engine every seven days with the setting of the exer-  
cise timer (see Section 3.6, Page 16). This position also  
is used for remote starting, when it is set up.  
3.4 SEQUENCE OF AUTOMATIC  
OPERATION  
The generator’s control panel houses a control logic  
circuit board. This board constantly monitors utility  
power source voltage. Should that voltage drop below  
a preset level, circuit board action will signal the  
engine to crank and start. After the engine starts, the  
circuit board signals the transfer switch to activate  
and connect load circuits to the standby power sup-  
ply (load terminal lugs T1/T2 connect to terminal  
lugs E1/E2).  
3.2.2 “OFF” POSITION  
This switch position shuts down the engine. This  
position also prevents automatic operation.  
3.2.3 “MANUAL POSITION  
Set the switch to MANUAL to crank and start the  
engine. Transfer to standby power will not occur  
unless there is a utility failure.  
Upon restoration of utility source voltage above a pre-  
set level, generator circuit board action signals the  
transfer switch to transfer loads back to that power  
supply. After retransfer, the engine is signalled to shut  
down.  
Figure 3.1 – Generator Control Panel  
FUSE  
R
L o c a t  
e
y o u r n e a r e s t  
d e a le r a t  
:
R
POWER SYSTEMS, INC.  
The actual sequence of operation is controlled by  
sensors and timers on a control logic circuit board,  
as follows:  
5A  
AUTO OFF MAN.  
SYSTEM SET  
LOW OIL  
HIGH TEMP.  
OVER SPEED  
OVER CRANK  
FUSE  
A.Utility Voltage Dropout Sensor  
• This sensor monitors utility source voltage.  
• If utility source voltage drops below about 70 per-  
cent of the nominal supply voltage, the sensor  
energizes a 15-second timer.  
F L A  
S
H
IN  
N
H
G
O
IN  
G R E E N L E D  
=
SET  
EXERCISE  
TIME  
15A  
U
G
T
IL IT  
E D L E D  
IS E R  
Y
S
E N  
S
=
E
4
F L A  
S
R
S
T
E X E R  
C
N
O
S
E T  
• Once the timer has expired, the engine will crank  
and start.  
B.Engine Warm-up Time Delay  
• This mechanism lets the engine warm up for  
about 10 seconds before the load is transferred  
to a standby source.  
With the switch set to AUTO, the engine may  
crank and start at any time without warning.  
Such automatic starting normally occurs when  
utility power source voltage drops below a pre-  
set level or during the normal exercise cycle. To  
prevent possible injury that might be caused by  
such sudden starts, always set the switch to  
OFF and remove both fuses before working on  
or around the generator or transfer switch.  
Then, place a “Do Not Operate” tag on the gen-  
erator panel and on the transfer switch.  
!
C.Standby Voltage Sensor  
• This sensor monitors generator AC output volt-  
age. When the voltage has reached 50 percent of  
the nominal rated voltage, transfer to standby  
can occur.  
14  
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Section 3 — Operation  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
D.Utility Voltage Pickup Sensor  
Figure 3.2 – Manual Transfer Switch Operation  
• This sensor monitors utility power supply volt-  
age. When that voltage is restored to above 70  
percent of the nominal source voltage, a retrans-  
fer time delay starts timing.  
E.Retransfer Time Delay  
• This timer runs for about 15 seconds.  
• At end of a 15-second delay, circuit board action  
de-energizes the transfer relay in the transfer  
switch.  
• Retransfer to utility power source then occurs.  
F. Engine Cool-down Timer  
• When the load is transferred back to utility power  
source, the engine cool-down timer starts timing.  
• The timer will run for about one minute, and the  
generator will then shut down.  
3.5.2 TRANSFER BACK TO UTILITY POWER  
SOURCE  
3.5 MANUAL TRANSFER OPERATION  
When utility power has been restored, you will want  
to transfer back to that source and shut down the  
generator. This can be accomplished as follows:  
3.5.1 TRANSFER TO GENERATOR  
POWER SOURCE  
To start the generator and activate the transfer switch  
manually, proceed as follows:  
1. Set the generator’s main circuit breaker to its  
OFF (or open) position.  
2. Let the engine run for a minute or two at no-load  
to stabilize the internal temperatures.  
3. Set the generator’s Auto/Off/Manual switch to  
its OFF (or open) position. The engine should  
shut down.  
1. Set the generator’s main circuit breaker to its  
OFF (or open) position.  
2. Set the generator’s Auto/Off/Manual switch  
to OFF.  
3. Turn OFF the utility power supply to the transfer  
switch using the means provided (such as a  
utility main line circuit breaker).  
4. Check that utility power supply to the transfer  
switch is turned OFF.  
DANGER  
DANGER  
Do not attempt to activate the transfer switch  
manually until all power voltage supplies to  
the switch have been positively turned off.  
Failure to turn off all power voltage supplies  
may result in extremely hazardous and possibly  
fatal electrical shock.  
Do not attempt to activate the transfer switch  
manually until all power voltage supplies  
to the switch have been positively turned off.  
Failure to turn off all power voltage supplies  
may result in extremely hazardous and possibly  
fatal electrical shock.  
4. Use the manual transfer handle inside the trans-  
fer switch to move the main contacts to their  
“Standby” position, i.e., loads connected to the  
standby power source (Figure 3.2).  
5. Use the manual transfer handle inside the trans-  
fer switch to move the main contacts back to their  
“Utility” position, i.e., loads connected to the util-  
ity power source (Figure 3.2).  
5. To crank and start the engine, set the  
6. Turn ON the utility power supply to the transfer  
Auto/Off/Manual switch to MANUAL.  
switch using the means provided.  
6. Let the engine stabilize and warm up for a few  
minutes.  
7. Set the generator’s main circuit breaker to its ON  
(or closed) position. The standby power source  
now powers the loads.  
7. Set the system to automatic operation as outlined  
in Automatic Transfer Operation,” Section 3.3  
(Page 14).  
15  
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Section 3 — Operation  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Figure 3.3 – Low Oil Pressure and  
High Temperature Switches  
3.6 SETTING THE EXERCISE TIMER  
Your generator is equipped with an exercise timer.  
Once it is set, the generator will start and exercise  
once every seven days, on the day of the week and at  
the time of day you complete the following sequence.  
During this exercise period, the unit runs for approx-  
imately 12 minutes and then shuts down. Transfer of  
loads to the generator output does not occur during  
the exercise cycle.  
Low Oil Switch  
High Temp Switch  
A switch on the control panel (see Figure 3.1, Page  
14) allows you to select the day and time for system  
exercise. To select the desired day and time of day,  
you must perform the following sequence at that  
time.  
Oil  
Drain  
Hose  
Oil Filter  
1. Verify that the Auto/Off/Manual switch is set  
to AUTO.  
2. Hold down the set timer switch until the genera-  
tor starts (approximately 10 seconds) and  
then release.  
3. The generator will start and run for approximately  
12 minutes and then shut down on its own. The  
exerciser will then be set to run at that time of day  
every week.  
3.7.3 OVERCRANK  
This feature prevents the generator from damaging  
itself when it continually attempts to start and anoth-  
er problem, such as no fuel supply, prevents it from  
starting. The unit will crank and rest for a preset time  
limit. Then, it will stop cranking, and the LED will  
light indicating an overcrank failure. The  
Auto/Off/Manual switch will need to be set to OFF and  
then back to AUTO to reset the generator control  
board.  
NOTE:  
The exerciser will only work in the AUTO mode  
and will not work unless this procedure is per-  
formed. The exerciser will need to be reset every  
time the 12-volt battery is disconnected and then  
reconnected. The exerciser WILL NOT work if dip  
switch 2 (Remote Not Auto) on the controller  
printed circuit board is ON.  
NOTE:  
If the fault is not repaired, the overcrank feature  
will continue to activate.  
3.7.3.1 Approximate Crank Cycle Times  
• 15 seconds ON  
3.7 PROTECTION SYSTEMS  
• 7 seconds OFF  
• 7 seconds ON  
• 7 seconds OFF  
3.7.1 LOW OIL PRESSURE SWITCH  
This switch (Figure 3.3) has normally closed contacts  
that are held open by engine oil pressure during crank-  
ing and operating. Should oil pressure drop below the  
8 psi range, switch contacts close, and the engine  
shuts down. The unit should not be restarted until oil  
is added, and the Auto/Off/Manual switch must be  
turned to OFF and then back to AUTO.  
• Repeat for 45 seconds  
Approximately 90 seconds total  
3.7.4 OVERSPEED  
This feature protects the generator from damage by  
shutting it down if it happens to run faster than the  
preset limit. This protection also prevents the gener-  
ator from supplying an output that could potentially  
damage appliances connected to the generator cir-  
cuit. Contact your nearest Generac Authorized Dealer  
if this failure occurs.  
3.7.2 HIGH TEMPERATURE SWITCH  
This switch’s contacts (Figure 3.3) close if the tem-  
perature should exceed approximately 140º C (284º  
F), initiating an engine shutdown. Your generator will  
automatically restart and the LED will reset once the  
temperature has returned to a safe operating level.  
16  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Figure 4.2 — Oil Dipstick and Fill, 7 kW  
4.1 FUSE  
The generator panel’s 15 amp fuse (Figure 4.1) protects  
the DC control circuit against overload. The fuse is  
wired in series with the battery output lead to the panel.  
If the fuse element has melted open, you cannot crank  
or start the engine. You should replace the fuse using  
only an identical 15-amp replacement.  
Oil Dipstick and Fill  
The generator panel’s 5 amp fuse protects the battery  
charge circuit against overload. If the fuse element has  
melted open, you will not have battery charging capa-  
bility. You should replace the fuse using only an identi-  
cal 5 amp replacement. To remove fuse, push cap down  
and rotate counterclockwise.  
Figure 4.1 – Generator Control Panel  
FUSE  
R
Figure 4.3 — Oil Dipstick and Fill,  
12 kW and 15 kW  
L o c a t  
e
y o u r n e a r e s t  
d e a le r a t  
:
R
POWER SYSTEMS, INC.  
5A  
AUTO OFF MAN.  
SYSTEM SET  
LOW OIL  
Oil Dipstick  
HIGH TEMP.  
OVER SPEED  
OVER CRANK  
FUSE  
F L A  
S
H
IN  
N
H
G
O
IN  
G R E E N L E D  
=
SET  
EXERCISE  
TIME  
15A  
U
G
T
IL IT  
E D L E D  
IS E R  
Y
S
E N  
S
=
E
4
F L A  
S
R
S
T
E X E R  
C
N
O
S
E T  
Oil Fill  
4.2 CHECKING THE ENGINE  
OIL LEVEL  
For oil capacities, see “Specifications,” Section 1.5  
(Page 6). For engine oil recommendations, see  
Section 4.3.1. To check the engine oil level, proceed  
as follows (Figure 4.2):  
1. Start the generator by moving the Auto/  
Off/Manual switch to the MANUAL position. Allow  
it to run for a short while and then shut it down  
by moving the switch to the OFF position.  
2. Remove the dipstick and wipe it dry with a  
clean cloth.  
3. Install the dipstick; then, remove it again. The oil  
level should be at the dipstick “Full” mark. If nec-  
essary, add oil to the “Full” mark only. DO NOT  
FILL ABOVE THE “FULLMARK.  
4.3 CHANGING THE ENGINE OIL  
4.3.1 ENGINE OIL RECOMMENDATIONS  
Use oil of American Petroleum Institute (API) Service  
Class SG, SH or SJ. Use all season SAE 5W-30  
Synthetic oil. Organic break-in oil is required before  
using synthetic oil.  
NOTE:  
The unit is supplied with “break-in” oil. See the  
“Break-in Procedure,” Section 3.1 (Page 12), for  
the first required oil change.  
Never operate the engine with the oil level  
below the “Add” mark on the dipstick. Doing  
!
this could damage the engine.  
4. Install the dipstick.  
5. Reset the Auto/Off/Manual switch to its original  
Any attempt to crank or start the engine before  
it has been properly serviced with the recom-  
mended oil may result in an engine failure.  
!
position.  
17  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
4.3.2 OIL CHANGE PROCEDURE  
To change the oil, proceed as follows:  
4.5 CHANGING THE ENGINE  
AIR CLEANER  
1. Run the engine until it is thoroughly warmed up  
then shut OFF the engine.  
2. Immediately after the engine shuts OFF, pull the  
oil drain hose (Figure 4.4) free of its retaining  
clip. Remove the cap from the hose and drain the  
oil into a suitable container.  
4.5.1 7 KW, 12 KW AND 15 KW  
GENERATORS  
See Figures 1.1 and 1.2, (Page 5), for the location of  
your air cleaner. Use the following procedure (Figure  
4.6):  
1. Turn the two screws counterclockwise to loosen.  
2. Remove the cover and air filter.  
Figure 4.4 – Oil Drain Hose and Filter  
3. Wipe away dust or debris from inside of the air  
box and around edges.  
4. Install the new air cleaner into the air box.  
5. Install the cover. Turn the two cover screws clock-  
wise to tighten.  
See the “Service Schedule,” Section 4.13 (Page 22) for  
air cleaner maintenance. See Section 1.5.1 (Page 6)  
for air filter replacement part number.  
Oil  
Drain  
Hose  
Figure 4.6 — 7 kW, Engine Air Cleaner Location  
Fuel  
Regulator  
Oil Filter  
Air Cleaner  
3. After the oil has drained, replace the cap onto the  
end of the oil drain hose. Retain the hose in the clip.  
4. Refill with the proper recommended oil (see  
Section 4.3.1). See Section 1.5.2 (Page 6) for oil  
capacities.  
4.4 CHANGING THE OIL FILTER  
Change the engine oil filter as follows:  
1. With the oil drained, remove the old oil filter by  
turning it counterclockwise.  
2. Apply a light coating of clean engine oil to the gas-  
ket of the new filter. See Section 1.5.1 (Page 6) for  
recommended filter.  
Figure 4.7 — 12 kW and 15 kW Engine  
Air Cleaner  
Screw  
3. Screw the new filter on by hand until its gasket  
lightly contacts the oil filter adapter. Then, tighten  
the filter an additional 3/4 to one turn (Figure 4.4).  
4. Refill with the proper recommended oil (see  
Section 4.3.1, Page 17). See Section 1.5.2 (Page 6)  
for oil capacities.  
Cover  
Filter  
5. Start the engine and check for leaks.  
18  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
• Remove watches, rings or other metal objects;  
4.6 SPARK PLUG(S)  
• Use tools with insulated handles;  
• Wear rubber gloves and boots;  
• Do not lay tools or metal parts on top of the  
battery; and  
Reset the spark plug(s) gap or replace the spark  
plug(s) as necessary. See Section 4.13 (Page 22) for  
maintenance requirements.  
1. Clean the area around the base of the spark  
plug(s) to keep dirt and debris out of the engine.  
Clean by scraping or washing using a wire brush  
and commercial solvent. Do not blast the spark  
plug(s) to clean.  
2. Remove the spark plug(s) and check the condi-  
tion. Replace the spark plug(s) if worn or if reuse  
is questionable. See Section 4.13 (Page 22) for  
recommended inspection.  
3. Check the spark plug gap using a wire feeler  
gauge. Adjust the gap to 0.76 mm (0.030 inch) for  
7 kW and 0.50 mm (0.020 inch) for 12/15 kW by  
carefully bending the ground electrode (Figure  
4.8).  
• Disconnect charging source prior to connecting or dis-  
connecting battery terminals.  
Do not open or mutilate the battery. Released  
electrolyte has been known to be harmful to  
!
the skin and eyes, and to be toxic.  
The electrolyte is a dilute sulfuric acid that is  
harmful to the skin and eyes. It is electrically  
!
conductive and corrosive. The following  
procedures are to be observed:  
• Wear full eye protection and protective clothing;  
• Where electrolyte contacts the skin, wash it off  
immediately with water;  
• Where electrolyte contacts the eyes, immediately  
flush thoroughly with water and seek medical  
attention; and  
Figure 4.8 – Setting the Spark Plug Gap  
SET PLUG GAP AT 0.76 mm/0.50 mm  
(0.030 inch/0.020 inch)  
• Spilled electrolyte is to be washed down with an  
acid neutralizing agent. A common practice is to  
use a solution of 1 pound (500 grams) bicarbonate  
of soda to 1 gallon (4 liters) or water. The bicar-  
bonate of soda solution is to be added until the  
evidence of reaction (foaming) has ceased. The  
resulting liquid is to be flushed with water and the  
area dried.  
Lead-acid batteries present a risk of fire  
because they generate hydrogen gas. The  
following procedures are to be followed:  
4.7 BATTERY MAINTENANCE  
• DO NOT SMOKE when near the battery;  
• DO NOT cause flame or spark in battery area; and  
• Discharge static electricity from your body before  
touching the battery by first touching a grounded  
metal surface.  
The battery should be inspected per the “Service  
Schedule,” Section 4.13 (Page 22). The following pro-  
cedure should be followed for inspection:  
1. Inspect the battery posts and cables for tightness  
and corrosion. Tighten and clean as necessary.  
2. Check the battery fluid level of unsealed batteries  
and, if necessary, fill with DISTILLED WATER  
ONLY. DO NOT USE TAP WATER IN BATTERIES.  
3. Have the state of charge and condition checked.  
This should be done with an automotive-type bat-  
tery hydrometer.  
Be sure the Auto/Off/Manual switch is set to  
the OFF position before connecting the battery  
!
cables. If the switch is set to AUTO or MANUAL,  
the generator can crank and start as soon as  
the battery cables are connected.  
Be sure the utility power supply is turned off,  
and the 5A fuse is removed from the generator  
control panel, or sparking may occur at the bat-  
tery posts as you attach the cables causing an  
explosion.  
DANGER  
Do not dispose of the battery in a fire. The  
battery is capable of exploding.  
A battery presents a risk of electrical shock  
and high short circuit current. The following  
precautions are to be observed when working  
on batteries:  
19  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
• Install new valve cover gasket.  
• Re-attach the valve cover.  
NOTE:  
4.8 ADJUSTING VALVE CLEARANCE  
After the first 50 hours of operation, you should  
adjust the valve clearance in the engine.  
Start all four screws before tightening or you will not  
be able to get all the screws in place. Make sure the  
valve cover gasket is in place.  
Important: If you feel uncomfortable about doing this  
procedure or you don't have the proper tools, please  
contact your Generac Authorized dealer for service  
assistance. This is a very important step to insure  
longest life for your engine.  
• Re-attach the spark plug wire to the spark plug.  
• Repeat the process for the other cylinder.  
To adjust valve clearance:  
4.9 COOLING SYSTEM  
• Make sure the engine is at room temperature.  
• Make sure that the spark plug wire is removed from  
the spark plug and out of the way.  
Air inlet and outlet openings in the generator compart-  
ment must be open and unobstructed for continued  
proper operation. This includes such obstructions as  
high grass, weeds, brush, leaves and snow.  
• Remove the four screws attaching the valve cover with  
a #2 or #3 phillips screwdriver.  
Without sufficient cooling and ventilating air flow, the  
engine/generator quickly overheats, which causes it to  
quickly shut down. (See Figure 4.9 for vent locations.)  
• Make sure the piston is at Top Dead Center (TDC) of  
its compression stroke (both valves closed). To get  
the piston at TDC, remove the intake screen at the  
front of the engine to gain access to the flywheel nut.  
Use a large socket and socket wrench to rotate the  
nut and hence the engine. While watching the piston  
through the spark plug hole. The piston should move  
up and down. The piston is at TDC when it is up as  
high as it can go.  
Figure 4.9 – Cooling Vent Locations  
• Loosen the rocker jam nut. Use an 10mm allen  
wrench to turn the pivot ball stud while checking  
clearance between the rocker arm and the valve stem  
with a feeler gauge. Correct clearance is 0.002-0.004  
inch (0.05-0.1 mm).  
NOTE:  
You must hold the rocker arm jam nut in place as  
you turn the pivot ball stud.  
When valve clearance is correct, hold the pivot ball stud  
in place with the allen wrench and tighten the rocker  
arm jam nut. Tighten the jam nut to 174 in/lbs. torque.  
After tightening the jam nut, recheck valve clearance to  
make sure it did not change.  
The exhaust from this product gets extremely hot  
and remains hot after shutdown. High grass,  
weeds, brush, leaves, etc. must remain clear of  
the exhaust. Such materials may ignite and burn  
from the heat of the exhaust system.  
Figure 4.10 - Valve Clearance Adjustment  
Rocker  
Pivot Ball  
Stud  
Arm  
Jam Nut  
Valve  
Stem  
The maximum ambient temperature for your  
generator is 48.9° C (104° F).  
!
20  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
4.12.2 RETURN TO SERVICE  
To return the unit to service after storage, proceed  
as follows:  
4.10 ATTENTION AFTER SUBMERSION  
If the generator has been submerged in water,  
it MUST NOT be started and operated. Following any sub-  
mersion in water, have a Generac Authorized Dealer thor-  
oughly clean and dry the generator.  
1. Set the generator’s main circuit breaker to its OFF  
(or open) position.  
2. Verify that utility power is turned off and that the  
4.11 CORROSION PROTECTION  
Auto/Off/Manual switch is set to OFF.  
Periodically wash and wax the enclosure using automo-  
tive type products. Frequent washing is recommended  
in salt water/coastal areas. Spray engine linkages with  
a light oil such as WD-40.  
3. Check the tag on the engine for oil viscosity and  
classification. Verify that the correct recommended  
oil is used in the engine (see Section 4.3.1, Page 17).  
If necessary, drain and refill with the proper oil.  
4. Check the state of the battery. Fill all cells of  
unsealed batteries to the proper level with distilled  
water. DO NOT USE TAP WATER IN THE BATTERY.  
Recharge the battery to 100 percent state of charge,  
or, if defective, replace the battery. See  
“Specifications,” Section 1.5 (Page 6), for type and  
size.  
5. Clean and wipe the entire generator.  
6. Remove both fuses from the generator control  
panel.  
7. Reconnect the battery. Observe battery polarity.  
Damage may occur if the battery is connected incor-  
rectly. Replace the fuses in the generator control  
panel.  
4.12 OUT OF SERVICE PROCEDURE  
4.12.1 REMOVAL FROM SERVICE  
If you cannot exercise the generator every seven days,  
and it is to be out of service longer than 90 days, pre-  
pare the generator for storage as follows:  
1. Start the engine and let it warm up.  
2. Close the fuel shutoff valve in the fuel supply line  
and allow the unit to shut down.  
3. Once the unit has shut down, it will signal a low oil  
fault.  
4. Set the Auto/Off/Manual switch to OFF and turn off  
the utility power to the transfer switch. Remove both  
fuses from the generator control panel.  
5. While the engine is still warm from running, drain  
the oil completely. Refill the crankcase with oil. See  
”Engine Oil Recommendations,” Section 4.3.1 (Page  
17).  
6. Attach a tag to the engine indicating the viscosity  
and classification of the oil in the crankcase.  
7. Remove the spark plug(s) and spray fogging agent  
into the spark plug(s) threaded openings. Reinstall  
and tighten the spark plug(s).  
8. Remove the battery and store it in a cool, dry room  
on a wooden board. Never store the battery on any  
concrete or earthen floor.  
8. Open the fuel shutoff valve.  
9. Start the unit by moving the Auto/Off/Manual switch  
to MANUAL. Allow the unit to warm up thoroughly.  
10. Stop the unit and set the Auto/Off/Manual switch to  
AUTO. Set the generator’s main circuit breaker to  
its ON (or closed) position.  
11. Turn on the utility power to the transfer switch.  
12. Your generator is now ready for service.  
NOTE:  
If the battery was dead or disconnected, you must  
reset the exercise timer.  
9. Clean and wipe the entire generator.  
21  
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Section 4 — Maintenance  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
4.13 SERVICE SCHEDULE  
ATTENTION: It is recommended that all service work  
be performed by your nearest Generac Authorized Dealer.  
SYSTEM/COMPONENT  
PROCEDURE  
FREQUENCY  
X = Action  
Inspect  
Change  
Clean  
W = Weekly  
M = Monthly  
Y = Yearly  
R = Replace as Necessary  
* = Notify Dealer  
if Repair is Needed.  
FUEL  
Fuel lines and connections*  
X
X
M
M
LUBRICATION  
Oil level  
Oil  
X
X
AFTER BREAK-IN,  
AND Y  
Oil filter  
AFTER BREAK-IN,  
AND Y  
COOLING  
Enclosure louvers  
BATTERY  
X
X
W
Remove corrosion,  
ensure dryness  
X
X
X
X
M
M
Clean and tighten  
battery terminals  
Check charge state  
X
X
R
R
EVERY 6 M  
EVERY 6 M  
Electrolyte level  
(unsealed batteries only)*  
ENGINE AND MOUNTING  
Air cleaner  
X
X
R
R
Y
Y
Spark plug(s)  
GENERAL CONDITION  
Vibration, Noise, Leakage,  
Temperature*  
X
M
Y
COMPLETE TUNE-UP*  
TO BE COMPLETED BY A GENERAC  
AUTHORIZED DEALER  
22  
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Section 5 — Troubleshooting  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
5.1 TROUBLESHOOTING GUIDE  
PROBLEM  
The engine will not crank.  
CAUSE  
1. Fuse blown  
CORRECTION  
1. Replace 15A fuse on generator  
control panel.  
2. Loose, corroded or defective  
battery cables  
2. Tighten, clean or replace  
as necessary.  
3. Defective starter contactor (7 kW) 3. *  
4. Defective starter motor  
5. Dead Battery  
4. *  
5. Charge or replace battery.  
The engine cranks but  
will not start.  
1. Out of fuel  
1. Replenish fuel.  
2. *  
3. *  
2. Defective fuel solenoid (FS)  
3. Open #14 wire from  
engine control board  
4. Defective spark plug(s)  
5. Valve lash out of adjustment.  
4. Clean, re-gap or replace plug(s).  
5. Reset valve lash.  
The engine starts hard  
and runs rough.  
1. Air cleaner  
1. Check, replace air cleaner.  
plugged or damaged  
2. Defective spark plug(s)  
3. Fuel regulator not set.  
4. Fuel pressure incorrect.  
2. Clean, re-gap or replace plug(s).  
3. Set fuel regulator.  
4. Confirm fuel pressure is at 11”-14”  
water column (0.4 psi - 0.5 psi).  
The Auto/Off/Manual switch  
is set to OFF, but the engine  
continues to run.  
1. Defective switch  
1. *  
2. *  
2. Auto/Off/Manual switch  
wired incorrectly  
3. Defective control board  
3. *  
There is no AC output from  
the generator.  
1. Main line circuit breaker open  
2. Generator internal failure  
1. Reset circuit breaker  
to ON (or closed).  
2. *  
There is no transfer to  
standby after utility  
source failure.  
1. Defective transfer switch coil  
2. Defective transfer relay  
3. Transfer relay circuit open  
4. Defective control logic board  
1. *  
2. *  
3. *  
4. *  
Unit consumes large  
amounts of oil.  
1. Break-in procedure  
1. *  
not followed (see Section 3.1)  
*Contact your nearest Generac Authorized Dealer for assistance.  
23  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Wiring Diagram – 12 & 15 kW – Drawing No. 0D8500  
3
2
1
BATTERY  
CHARGER  
DIAGRAM KEY  
BA - BRUSH ASSEMBLY  
BCR - BATTERY CHARGE RELAY  
CB1 - MAIN OUTPUT BREAKER  
14  
2
1
0
CB2 - CIRCUIT BREAKER, ALTERNATOR EXCITATION  
D
-
DIODE  
225B  
ENGINE WIRING  
DSW - PCB MOUNTED DIP SWITCH  
FS  
224B  
FS - FUEL SOLENOID  
13A  
0
F1 - FUSE 15 AMP  
F2 - FUSE 5 AMP  
GRD - CONTROL PANEL GROUND  
HTO - HIGH OIL TEMPERATURE SWITCH  
IC - INLINE CONNECTOR  
0
ICT - INTERCONNECTION TERMINALS  
IM1 - IGNITION MODULE, CYLINDER #1  
IM2 - IGNITION MODULE, CYLINDER #2  
LOP - LOW OIL PRESSURE SWITCH  
SC - STARTER CONTACTOR  
0
SCR - STARTER CONTACTOR RELAY  
SP1, SP2 - SPARK PLUGS  
14  
SW1 - AUTO / OFF / MANUAL SWITCH  
SW2 - SET EXERCISE SWITCH  
14  
SM - STARTER MOTOR  
TB - INSULATED TERMINAL BLOCK  
TX - TRANSFORMER, 16 Vac 56 VA & 16 Vac 1 VA (DUAL SEC.)  
IC  
TB  
D
SP1  
6
5
0
0
14  
IM1  
18  
85  
4
3
86  
2
1
13  
13  
D
16  
IC  
IC  
SP2  
C1  
16  
SCR  
IM2  
13  
18  
85  
A
B
86  
351  
HTO  
0
14  
86  
56  
0
85  
56  
1
16  
13  
86  
2
3
4
5
J2  
LOP  
0
J1  
CONTROL  
PRINTED CIRCUIT BOARD  
RED  
BLACK  
DSW  
1
2
3
4
ON  
ON - INDICATES  
1 - 20 Vac Sense Transformer  
2 - Remote Not Auto  
3 - 50 Hz Operation  
4 - SPARE  
SM  
- +  
12V  
BATTERY  
SC  
CUSTOMER SUPPLIED  
L.E.D - ALARM INDICATORS  
24  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Wiring Diagram – 12 & 15 kW – Drawing No. 0D8500  
CONTROL PANEL BOX  
225  
224  
224A  
225A  
CLOSEST TO BEARING  
BA  
224A  
4
0
225A  
TX  
BCR  
CB2  
1 3  
4 6  
7 9  
STATOR  
N1 N2  
162  
77  
A B  
66  
2
225B  
4
10  
9
224B  
0
2
11  
6
77  
8
2
14  
55  
4
7
6
22  
6
66A  
11  
0
11  
11  
22  
5
4
3
22  
77  
11  
66  
66  
13A  
225  
22  
4
77  
0
4
0
6
0
2
6
44  
1
224  
162  
162  
55  
C2  
VOLTAGE  
REGULATOR  
66A  
0
0
66A  
4
55  
N2  
33  
N1  
13  
13  
22  
13  
225  
GRD  
351  
224  
194  
23  
N2  
4
N1  
13  
44  
351  
23  
56  
11  
13  
13A  
351  
CUSTOMER  
CONNECTION  
194  
15A  
23  
22  
N2  
18  
13  
33  
N1  
194  
0
14  
13  
66A  
F2  
F1  
239  
CB1  
0
15A  
17  
OFF  
17  
15  
13  
239  
17  
0
SW1  
225  
15  
224  
1a  
1
15  
1b  
SW2  
240V GENERATOR  
AUTO  
OUTPUT TO TRANSFER  
SWITCH CONTACTOR  
MANUAL  
25  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Electrical Schematic – 12 & 15 kW – Drawing No. 0D8501  
11  
22  
3
2
1
225A  
224A  
BATTERY  
CHARGER  
225B  
F2  
13A  
13  
224B  
13A  
2
1
F1  
7
7
9
9
BCR  
1
4
3
6
11  
0
13A  
77  
C2-1  
0
77  
14  
BATTERY CHARGE  
WINDING  
66  
0
66  
C2-2  
22  
0
0
0
C2-4  
55  
HTO  
0
C2-11  
0
LOP  
11  
22  
ENGINE RUN  
WINDING  
BA  
FIELD  
SW2  
C1-4  
0
14  
(STATOR)  
C1-3  
0
C2-9  
C2-3  
4
0
ELECTRONIC  
VOLTAGE  
REGULATOR  
C2-10  
4
4
66A  
0
85  
6
86  
162  
C1-6  
4
6
CB2  
0
351  
225  
224  
C2-7  
C2-8  
66A  
2
DPE WINDING  
(STATOR)  
1
2
3
4
5
J2  
23  
18  
1
2
4
J1  
194  
86  
3
4
5
6
7
8
9
23  
194  
56  
DIAGRAM KEY  
BA - BRUSH ASSEMBLY  
14  
BCR - BATTERY CHARGE RELAY  
CB1 - CIRCUIT BREAKER, MAIN OUTPUT  
CB2 - CIRCUIT BREAKER, ALT. EXCITATION  
D - DIODE  
66A  
239  
15A  
17  
CONTROL  
PRINTED CIRCUIT  
BOARD  
10  
11  
12  
13  
14  
15  
16  
17  
FS - FUEL SOLENOID  
F1 - FUSE 15 AMP  
F2 - FUSE 5 AMP  
15  
0
225  
224  
HTO - HIGH OIL TEMPERATURE SWITCH  
IM1 - IGNITION MODULE, CYLINDER #1  
IM2 - IGNITION MODULE, CYLINDER #2  
LOP - LOW OIL PRESSURE SWITCH  
SC - STARTER CONTACTER  
SCR - STARTER CONTACTOR RELAY  
SP1, SP2 - SPARK PLUGS  
SW1 - AUTO / OFF / MANUAL SWITCH  
SW2 - SET EXERCISE SWITCH  
SM - STARTER MOTOR  
TX - TRANSFORMER, 16 Vac 56 VA & 16 Vac 1 VA (DUAL SEC.)  
26  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Electrical Schematic – 12 & 15 kW – Drawing No. 0D8501  
11  
C2-6  
22  
C2-5  
TX  
225A  
N2  
56VA  
1VA  
224A  
225  
224  
N1  
194  
23  
CUSTOMER  
CONNECTIONS  
N2  
N2  
N1  
13  
N1  
15  
17  
11  
NEUTRAL  
17  
23  
0
22  
33  
15A  
0
SW1  
194  
120V  
15  
120V  
POWER WINDING  
(STATOR)  
239  
15  
44  
CB1  
23  
15  
194  
239  
11  
14  
0
240V  
14  
15A  
15  
239  
13  
RED  
0
C2-1  
66A  
17  
13  
SC  
SCR  
56  
16  
16  
0
14  
C1-1  
BATTERY  
12V  
0
SC  
0
FS  
0
SM  
BLACK  
CUSTOMER  
SUPPLIED  
IM1  
IM2  
SP1  
SP2  
D
18  
C1-5  
D
27  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Wiring Diagram – 7 kW – Drawing No. 0D9013  
ENGINE WIRING  
3
2
1
DIAGRAM KEY  
BATTERY  
CHARGER  
(UTILITY)  
BA - BRUSH ASSEMBLY  
BCR - BATTERY CHARGE RELAY  
CB1 - MAIN OUTPUT BREAKER  
CB2 - CIRCUIT BREAKER, ALTERNATOR EXCITATION  
14  
2
1
0
D
-
DIODE  
DSW - PCB MOUNTED DIP SWITCH  
225A  
224A  
FS - FUEL SOLENOID  
F1 - FUSE 15 AMP  
F2 - FUSE 5 AMP  
GRD - CONTROL PANEL GROUND  
FS  
13A  
0
HTO - HIGH OIL TEMPERATURE SWITCH  
IC - INLINE CONNECTOR  
ICT - INTERCONNECTION TERMINALS  
0
IM - IGNITION MODULE  
LOP - LOW OIL PRESSURE SWITCH  
SC - STARTER CONTACTOR  
SP - SPARK PLUG  
SW1 - AUTO / OFF / MANUAL SWITCH  
SW2 - SET EXERCISE SWITCH  
14  
SM - STARTER MOTOR  
TB - INSULATED TERMINAL BLOCK  
TX - TRANSFORMER, 16 Vac 56 VA & 16 Vac 1 VA (DUAL SEC.)  
14  
IC  
TB  
0
D
SP  
14  
0
6
5
0
IM  
18  
14  
85  
4
3
86  
85  
IC  
IC  
2
HTO  
13  
0
1
C1  
86  
18  
56  
56  
LOP  
86  
351  
0
13  
14  
86  
56  
85  
56  
1
4
2
3
4
5
J2  
4
J1  
86  
23  
194  
SC  
56  
CONTROL  
18  
PRINTED CIRCUIT BOARD  
14  
66A  
RED  
239  
BLACK  
DSW  
15A  
1
2
3
4
ON  
17  
15  
16  
0
ON - INDICATES  
225  
1 - 20 Vac Sense Transformer  
2 - Remote Not Auto  
3 - 50 Hz Operation  
4 - SPARE  
224  
- +  
12V  
SM  
BATTERY  
CUSTOMER SUPPLIED  
L.E.D - ALARM INDICATORS  
28  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Wiring Diagram – 7 kW – Drawing No. 0D9013  
224A  
CLOSEST TO BEARING  
225A  
CONTROL PANEL BOX  
225  
224  
BA  
4
0
224A  
225A  
TX  
BCR  
STATOR  
CB2  
162  
1 3  
4 6  
7 9  
N2  
N1  
77  
A B  
66  
2
4
225A  
10  
9
224A  
0
2
11  
6
77  
2
8
14  
55  
66A  
4
6
7
22  
6
11  
22  
11  
11  
22  
5
4
3
77  
11  
66  
66  
13A  
225  
22  
4
0
77  
0
4
N2  
0
6
0
2
6
44  
N1  
1
224  
162  
162  
55  
C2  
VOLTAGE  
REGULATOR  
4
66A  
0
0
0
66A  
4
55  
N2  
33  
N1  
0
13  
22  
225  
0
GRD  
351  
224  
0
194  
23  
N2  
N1  
13  
44  
351  
15A  
23  
56  
11  
13A  
351  
CUSTOMER  
CONNECTION  
194  
22  
18  
33  
0
23  
N2  
14  
13  
N1  
194  
F2  
F1  
CB1  
0
OFF  
13  
239  
17  
15  
SW1  
SW2  
15  
AUTO  
240V GENERATOR  
OUTPUT TO TRANSFER  
SWITCH CONTACTOR  
MANUAL  
29  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Electrical Schematic – 7 kW – Drawing No. 0D9014  
11  
22  
225A  
3
2
1
BATTERY  
CHARGER  
225B  
F2  
13A  
13  
224B  
13A  
2
1
F1  
7
7
9
9
BCR  
1
4
3
6
11  
0
0
13A  
77  
C2-1  
0
15  
77  
14  
BATTERY CHARGE  
WINDING  
66  
66  
C2-2  
22  
0
0
0
0
C2-4  
55  
HTO  
0
LOP  
11  
22  
ENGINE RUN  
WINDING  
BA  
FIELD  
SW2  
C1-4  
0
14  
(STATOR)  
C1-3  
0
C2-9  
C2-3  
4
0
ELECTRONIC  
VOLTAGE  
REGULATOR  
C2-10  
4
4
66A  
0
85  
6
86  
162  
C2-11  
4
6
6
CB2  
351  
225  
14  
0
224  
C2-7  
2
66A  
C2-8  
2
1
2
3
4
5
DPE WINDING  
(STATOR)  
J2  
23  
1
2
4
J1  
194  
86  
3
4
5
6
7
8
9
23  
194  
56  
DIAGRAM KEY  
18  
BA - BRUSH ASSEMBLY  
BCR - BATTERY CHARGE RELAY  
CB1 - CIRCUIT BREAKER, MAIN OUTPUT  
CB2 - CIRCUIT BREAKER, ALT. EXCITATION  
D - DIODE  
14  
66A  
239  
15A  
17  
CONTROL  
PRINTED CIRCUIT  
BOARD  
10  
FS - FUEL SOLENOID  
F1 - FUSE 15 AMP  
F2 - FUSE 5 AMP  
11  
12  
13  
14  
15  
16  
17  
15  
0
HTO - HIGH OIL TEMPERATURE SWITCH  
HM - HOUR RUN METER  
IM - IGNITION MODULE  
LOP - LOW OIL PRESSURE SWITCH  
SC - STARTER CONTACTER  
SP - SPARK PLUG  
225  
224  
SW1 - AUTO / OFF / MANUAL SWITCH  
SW2 - SET EXERCISE SWITCH  
SM - STARTER MOTOR  
TX - TRANSFORMER, 16 Vac 56 VA & 16 Vac 1 VA (DUAL SEC.)  
30  
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Section 6 — Electrical Data  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Electrical Schematic – 7 kW – Drawing No. 0D9014  
11  
C2-6  
22  
C2-5  
TX  
N2  
56VA  
1VA  
224A  
225  
224  
N1  
194  
23  
CUSTOMER  
CONNECTIONS  
N2  
N2  
N1  
13  
N1  
17  
11  
NEUTRAL  
17  
23  
22  
33  
15A  
0
SW1  
120V  
194  
15  
120V  
POWER WINDING  
(STATOR)  
239  
15  
44  
CB1  
23  
15  
194  
239  
11  
240V  
66A  
15A  
15  
13  
239  
RED  
SC  
C1-2  
14  
17  
0
14  
56  
C1-1  
BATTERY  
12V  
SM  
SC  
0
FS  
0
0
C1-6  
0
BLACK  
CUSTOMER  
SUPPLIED  
18  
IM  
D
C1-5  
SP  
31  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Enclosure – Drawing No. 0D3416-K  
76  
85  
44  
71  
40  
68  
69  
82  
48  
77  
84  
80  
82  
41  
73  
78  
81  
80  
30  
17  
79  
72  
51  
86  
72  
5
52  
87  
A
6
29  
45  
12  
60  
49  
47  
44  
16  
19  
66  
47  
28  
55  
75  
64  
65  
88  
54  
31  
11  
50  
44  
62  
35  
46  
74  
25  
49  
51  
48  
51  
14  
8
61  
57  
49  
50  
9
35  
27  
22  
89  
67  
56  
63  
59  
49  
49  
90  
58  
1
93  
49  
91  
13  
35  
93  
38  
26  
3
51  
70  
39  
23  
58  
37  
42  
24  
43  
48  
51  
36  
51  
A
21  
49  
43  
46  
47  
7
34  
33  
2
32  
10  
50  
49  
18  
52  
20  
51  
4
15  
91  
63  
92  
71  
69  
35  
25  
68  
32  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Enclosure – Drawing No. 0D3416-K  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
1
0C6140  
0D1901  
0C6735  
0C7061  
0C7062  
0C7062A  
0C7063  
0C7063A  
0C7063B  
0C7064  
0C7065  
0C7065A  
0C8101A  
0C8861  
0C8101B  
0C8862  
0C8283  
0C8284A  
0C8284B  
0C8284C  
0C8285  
0C8899A  
0D1128  
0D1128A  
0D1605  
0D1605A  
0D1606  
0D5264  
0D1839  
0D1840  
0D2425  
0D2588  
0D2676  
0D2677  
0D2979B  
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
2
ASSEMBLY, ENCLOSURE BASE (12KW / 15KW)  
ASSEMBLY, ENCLOSURE BASE (7KW)  
SUPPORT, ROOF FOLDING  
44  
45  
46  
47  
48  
022097  
022473  
036261  
047411  
043116  
043116  
0D3700  
083512  
090388  
9
4
14  
12  
5
WASHER LOCK M6-1/4"  
WASHER FLAT ¼" ZINC  
2
3
4
RIVET POP .125 X .129-.133/#30  
SCREW HHC M6-1.0 X 16 G8.8  
SCREW HHC M6-1.0 X 12 G8.8 (12KW / 15KW)  
SCREW HHC M6-1.0 X 12 G8.8 (7KW)  
NUT, LOCKING FLANGE M6-1.0  
SCREW TAPTITE M8-1.20 X 16 BP  
SCREW TAPTITE M6-1.0 X 12 BP  
(12KW / 15KW)  
SCREW TAPTITE M6-1.0 X 12 BP (7KW)  
NUT LOCK TRIC M6 X 1.0 Y/ZNC  
GASKET, BATTERY SUPPORT BRACKET  
PLUG, PLASTIC 0.593 HEYCO 1675  
LUG SLDLSS #2-#8X17/64 CU  
SCREW TAPTITE M6-1.0X25 BP  
L/WASH SPECIAL ¼  
BRACKET, BATTERY HOLD DOWN (7KW)  
CONTACTOR, STARTER (7KW)  
CABLE, #6 RED BATTERY 38.5"  
NUT HEX 1/4-20 STEEL (7KW)  
WASHER LOCK 5/16 (12KW / /15KW)  
WASHER LOCK 5/16 (7KW)  
SCREW TAPTITE M5-0.8 X 10 BP  
HARNESS, ENGINE (12KW / 15KW)  
HARNESS, ENGINE (7KW)  
BUSHING, SNAP SB-1000-12  
SCREW HHC 5/16-18 X 3/4 G5 (7KW)  
RIVET,1/8" X 0.126" - 0.375" LSH POP  
L/WASH SPECIAL #10  
ASSEMBLY, ROOF/DOOR GROUND WIRE  
ASSEMBLY, ROOF/DOOR GROUND WIRE  
PLUG PLASTIC 1.375 (12KW / 15KW)  
GASKET, CLIP-ON SELF GRIPPING  
PLATE, "HOT"  
GROMMET 2.75 X 1/16  
EXTERNAL CONNECTION BOX  
POWER BLOCK  
HARNESS GENERATOR TO EXTERNAL  
CONNECTION BOX (12KW / 15KW)  
HARNESS GENERATOR TO EXTERNAL  
CONNECTION BOX (7KW)  
HARNESS GENERATOR TO EXTERNAL  
CONNECTION BOX (16KW)  
ENCLOSURE, FRONT  
ENCLOSURE, EXHAUST SIDE (12KW / 15KW)  
ENCLOSURE, EXHAUST SIDE (7KW)  
ENCLOSURE, SIDE & BACK (12KW / 15KW)  
ENCLOSURE, SIDE & BACK (7KW)  
ENCLOSURE, SIDE & BACK (16KW)  
ENCLOSURE, ROOF  
PANEL, ALTERNATOR DIVIDER (12KW / 15KW)  
PANEL, ALTERNATOR DIVIDER (7KW)  
PANEL, MUFFLER BOX SIDE (12KW / 15KW)  
PANEL, MUFFLER BOX SIDE (7KW)  
COVER, MUFFLER BOX (12KW / 15KW)  
COVER, MUFFLER BOX (7KW)  
GASKET, DOOR SEAL  
FOAM, BACK ENCLOSURE  
FOAM, ROOF ENCLOSURE  
FOAM, FRONT ENCLOSURE  
BRACKET, BATTERY SUPPORT (12KW / 15KW)  
PAD, 24"X48" WITH MOUNTING HOLES  
PANEL, ENGINE DIVIDER (12KW / 15KW)  
PANEL, ENGINE DIVIDER (7KW)  
BAFFLE, INTAKE (12KW / 15KW)  
BAFFLE, INTAKE (7KW)  
6
5
49  
50  
51  
18  
11  
34  
6
7
22  
2
1
1
1
1
2
1
1
1
2
4
5
8
1
1
1
1
2
2
1
2
2
10.5  
1
1
52  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
092120  
8
9
0D3167  
0A3328  
055414  
092079  
10  
11  
12  
13  
14  
15  
16  
0A1658  
0C2937  
086729  
0388040AJ0  
022127  
022129  
022129  
074908  
0D2346  
0D2345  
023484F  
022142  
0A7836  
0A8475  
0912970069  
0912970070  
055450  
0D2023  
0D3701  
0D3472  
0C8742  
0C8911  
0D3338  
64  
65  
17  
18  
HOUSING, FAN (12KW / 15KW)  
BAFFLE, EXHAUST (7KW)  
BRACKET, TOP SUPPORT  
BRACKET, BOTTOM SUPPORT  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
19  
20  
21  
22  
23  
24  
25  
DUCT, BASE AIR (12KW / 15KW)  
GASKET, FRONT DIVIDER  
COVER, FRONT EXHAUST ENCLOSURE  
COVER, BACK EXHAUST ENCLOSURE  
CLOTH, HARDWARE 266.7mm x 146mm  
(12KW / 15KW)  
CLOTH, HARDWARE 266.7mm x 146mm  
(7KW)  
CLOTH, HARDWARE 543mm x 146mm  
CLOTH, HARDWARE 266.7mm x 387.4mm  
CLOTH, HARDWARE (7KW)  
FOAM, FRONT INTAKE BAFFLE (12KW / 15KW)  
FOAM, FRONT INTAKE BAFFLE (7KW)  
FOAM, TOP INTAKE BAFFLE (12KW / 15KW)  
FOAM, BACK INTAKE BAFFLE (12KW / 15KW)  
FOAM, BACK INTAKE BAFFLE (7KW)  
FOAM, BACK ENCL. STRIP (12KW / 15KW)  
FOAM, EXHAUST SIDE ENCLOSURE END  
FOAM, EXHAUST SIDE ENCLOSURE FRONT  
FOAM, EXHAUST FAN HOUSING  
(12KW / 15KW)  
WASHER, SELF LOCKING (12KW / 15KW)  
WASHER, SELF LOCKING (7KW)  
FOAM, FRONT EXHAUST ENCLOSURE COVER  
FOAM, BACK EXHAUST ENCLOSURE COVER  
DOOR, PAWL  
0D2979B  
3
1
1
1
26  
27  
0D2979C  
0D2979D  
0D2979E  
0D3057A  
0D3058A  
0D3057B  
0D3057C  
0D3058C  
0D3057D  
0D3059A  
0D3059B  
0D3059C  
1
1
1
1
1
1
1
1
1
1
1
1
0D3419  
0D3928  
1
1
28  
29  
30  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
036937  
022152  
023897  
022158  
0D3031  
026850  
049813  
0D2537A  
0D2538A  
047411  
0A2311  
043107  
022145  
045771  
0C3906  
2
5
2
5
1
1
1
1
1
2
1
4
8
4
2
SCREW PPHM #10-32 X 1  
WASHER LOCK #10  
WASHER FLAT #10 ZINC  
NUT HEX #10-32 STEEL  
FUEL LINE, 3/4"OUTDOOR (NOT SHOWN)  
WASHER SHAKPROOF EXT 1/4 STEEL  
NUT HEX M6-1.0 G8 YELLOW CHROME  
HINGE, LIFT OFF, TYPE A KNUCKLE  
HINGE, LIFT OFF, TYPE B KNUCKLE  
SCREW HHC M6-1.0 X 16 G8.8  
SCREW SWAGE 1/4-20 X 1  
31  
32  
33  
34  
35  
0D7176  
24  
22  
1
1
2
1
1
1
1
36  
37  
38  
39  
40  
41  
42  
43  
0D3059D  
0D3059E  
0C7781  
0D3037  
0D2537  
0D2538  
0D3037A  
0A2115  
SCREW HHC M8-1.25 X 25  
WASHER FLAT 5/16  
NUT HEX M8-1.25  
SELF-ALIGN SCREW M6 HH  
LATCH, QUARTER TURN LOCKING  
HINGE, LIFT OFF, TYPE A PIN  
HINGE, LIFT OFF, TYPE B PIN  
LATCH, QUARTER TURN NON-LOCKING  
WASHER NYLON .250"  
4
33  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Control Panel – Drawing No. 0D8503-E  
34  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Control Panel – Drawing No. 0D8503-E  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
1
0A9947E  
0A9947G  
0A9947F  
0A9947C  
0A9947D  
1
1
1
1
1
CIRCUIT BREAKER 30 X 2 240V SQD  
QOU230 (7KW)  
CIRCUIT BREAKER 40 X 2 240V SQD  
QOU240 (8.5KW)  
CIRCUIT BREAKER 50 X 2 240V SQD  
QOU250 (12KW)  
CIRCUIT BREAKER 60 X 2 240V SQD  
QOU260 (13KW)  
CIRCUIT BREAKER 70 X 2 240V SQD  
QOU260 (15KW)  
ASSEMBLY, BATTERY CHARGER ENGINE  
ASSEMBLY, POTTED REGULATOR  
RELAY, 12V 25A SPST (8.5KW/ 12KW/ 13KW)  
BLOCK 1 POSITION  
HEX STAND-OFF #6-32 x 3/8"  
ASSEMBLY, HOME STANDBY CONTROLLER  
HOLDER, FUSE  
23  
051714  
051714  
0D8502  
0D8441  
4
2
1
1
NUT HEX M3-0.5 (8.5KW/ 12KW/ 13KW)  
NUT HEX M3-0.5 (7KW)  
NEUTRAL ISOLATOR  
HARNESS, CONTROL PANEL WIRE (NOT  
SHOWN) (8.5KW/ 12KW/ 13KW)  
HARNESS, CONTROL PANEL WIRE (NOT  
SHOWN) (7KW)  
SCREW TAPTITE, M5-0.8 x 10 BP  
WASHER LOCK M5  
NUT HEX M5-0.8  
TRANSFORMER  
SCREW HHC 1/4"-20 x 1/2"  
FUSE 5A X AGC5  
TERMINAL STRIP  
RELAY PANEL 12VDC DPDT 10A 240VAC  
SCREW PPHM M4-0.7 x 10mm  
WASHER FLAT M4  
COVER, CONTROL PANEL COMPONENT  
(8.5KW/ 12KW/ 13KW)  
COVER, CONTROL PANEL COMPONENT  
(7KW)  
SCREW PPHMS/LW #6-32 x 1/4"  
SCREW HHC M5-0.8 x10mm  
COVER, CONTROL PANEL (8.5KW/ 12KW/  
13KW)  
COVER, CONTROL PANEL (7KW)  
NUT FLANGE M6-1.0 NYLOCK  
ASSEMBLY, ROOF/DOOR GROUND WIRE  
SCREW SWAGE 1/4"-20 x 1"  
LOCKWASHER SPECIAL 1/4"  
WASHER FLAT 1/4"  
SCREW HHC M6-1.0 x 30mm  
WASHER LOCK M6-1/4"  
NUT HEX M6-1.0  
24  
26  
0E0120  
1
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
074908  
049226  
051716  
0C3910  
022507  
099727  
046689  
063617  
075475  
043180  
0D8439  
4
6
6
1
2
1
1
1
4
2
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
0A1801  
083049  
0C2174  
075210A  
0D3062  
0D8615  
032300  
022676  
033873  
0D5045  
023484E  
075476  
022264  
051715  
043182  
043182  
043181  
0D8443  
054502  
1
1
1
1
4
1
2
1
1
1
1
4
8
8
4
2
4
1
1
FUSE, 15AMP X AGC15  
SWITCH, ROCKER  
DIN RAIL  
SNAP BUSHING SB-687-8  
SCREW PPHM M4-0.7 x 16mm  
WASHER LOCK M4  
0E0119  
1
38  
39  
40  
092036  
045770  
0C7171  
8
2
1
NUT HEX M4-0.7  
WASHER LOCK M3 (8.5KW/ 12KW/ 13KW)  
WASHER LOCK M3 (7KW)  
SCREW PHM M3-0.5 x 10mm  
DECAL, CONTROL PANEL (NOT SHOWN)  
CIRCUIT BREAKER 3 X 1 ETA 46-500-P  
(8.5KW/ 12KW/ 13KW)  
CIRCUIT BREAKER 2.5 X 1 ETA 46-500-P  
(7KW)  
CONTROL, PANEL BOTTOM (8.5KW/ 12KW/  
13KW)  
0D2989  
0D3700  
0912970069  
0A2311  
0A1658  
022473  
038750  
022097  
049813  
031879  
031879  
023897  
1
10  
1
1
2
3
1
3
1
17  
18  
19  
41  
42  
43  
44  
45  
46  
47  
48  
49  
053623  
0D8438  
1
1
20  
0E0118  
075235  
0D5240  
1
4
1
CONTROL, PANEL BOTTOM (7KW)  
SCREW HHC M5-0.8 x 30mm  
SWITCH, SPDT ON-MOM-ON  
4
2
2
WASHER FLAT #4 (8.5KW/ 12KW/ 13KW)  
WASHER FLAT #4 (7KW)  
WASHER FLAT #10  
21  
22  
50  
35  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GT-990 Engine – Drawing No. 0D8674-C Part 1  
Kit Contains:  
66 2, 5, 19, 20, 39, 40, 47, 64, 93, 140  
67 8, 11, 12, 13  
68 4, 5, 6  
34  
69 16A, 16B, 17, 18  
37  
36  
35  
70 7, 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60  
71 48, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 60, 62  
72 27, 28, 29  
3
38  
140  
39  
73 3, 32, 33, 34, 35, 36, 40, 72  
34  
22  
40  
33  
32  
9
41  
3
21  
12  
10  
31  
13  
42  
29  
43  
25  
30  
28  
27  
11  
3
26  
15  
16A  
14  
16B  
23  
24  
44  
16A  
8
53  
55  
56  
54  
17  
7
18  
45  
20  
19  
6
57  
46  
5
4
47  
48  
49  
62  
63  
50  
3
64  
51  
52  
1
2
65  
58  
59  
60  
61  
36  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GT-990 Engine – Drawing No. 0D8674-C Part 1  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
1
0C5729  
1
ASSEMBLY, CRANKCASE HOUSING WITH  
SLEEVE  
SEAL, 38 I.D. CRANKSHAFT  
SCREW, TAPTITE M6-1.0 X 12 YC  
ASSEMBLY, BREATHER  
GASKET, BREATHER COVER  
SEPARATOR, OIL BREATHER  
ASSEMBLY, HEAD #1 G&S  
RETAINER, PISTON PIN 20  
ROCKER, COVER NO OIL FILL  
STUD M8-1.25/10MM X 30 G5 ZINC  
PISTON, HC  
SET, PISTON RING 90MM  
PIN PISTON D20  
ASSEMBLY, CAMSHAFT & GEAR  
SHAFT, GOVERNOR  
ROLLER BEARING, GOVERNOR PLATE  
ROLLER BEARING, GOVERNOR  
ASSEMBLY,GOVERNOR GEAR  
SPOOL, GOVERNOR MACHINED  
GASKET, CRANK CASE  
SEAL, OIL PASSAGE  
ASSEMBLY, CRANKSHAFT HORIZONTAL  
DIRECT DRIVE (GT-990)  
ASSEMBLY, CRANKSHAFT HORIZONTAL  
DIRECT DRIVE (GT-760)  
ASSEMBLY, CONNECTING ROD (GT-990)  
ASSEMBLY, CONNECTING ROD (GT-760)  
SCREW SHC M6-1.0 X 50 G8.8  
SCREEN, OIL PICKUP  
ASSEMBLY, OIL PUMP  
SLEEVE, SEAMED DOWEL 10 DIA.  
COVER, OIL RELIEF  
SPRING, OIL RELIEF  
BALL, 1/2D OIL RELIEF  
35  
36  
37  
38  
39  
40  
41  
0C2988  
0C2992  
0C3971C  
0C5305  
0C3027  
0C3007  
0C5731  
1
1
1
1
1
1
1
THRUST WASHER, GOVERNOR  
BUSHING, GOVERNOR LOWER  
ASSEMBLY, DIPSTICK WITH HANDLE  
TUBE, DIPSTICK  
O-RING, OIL CLR 3/8 X 1/2  
SEAL, 42 I.D. CRANKSHAFT  
ASSEMBLY, HOUSING COVER WITH  
SLEEVE  
SCREW, HHFC M10-1.5 X 55  
SCREW HHFC M6-1.0 X 20  
ASSEMBLY, OIL FILL CAP  
HOOK, LIFTING  
ROCKER, COVER WITH OIL FILL  
GASKET, VALVE COVER  
KEEPER, VALVE SPRING  
RETAINER, VALVE SPRING  
SPRING, VALVE  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16A  
16B  
17  
18  
19  
20  
21  
0C3008  
090388  
0C5372  
0C3005  
0C3003  
0D8067A  
071983  
0C2981C  
045761A  
0C5848  
021533  
071980  
0D4041  
0C2983  
0C2985A  
0C2985B  
0D4042  
0A7811  
0C2977  
0C5943  
0D4040E  
1
8
1
1
3
1
4
1
4
2
2
2
1
1
2
1
1
1
1
1
1
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
0C3006  
0C8566  
093064  
0C8808  
0D2723B  
0C2979  
086515  
0D2274  
0D3867  
078672  
0C5371  
0D5326  
0D6023  
0D5354  
0D5313  
0D6024  
0C2976  
086516  
0C2229  
083897  
0D8067B  
088396D  
0C2978  
043790A  
0D4010  
0D4011  
0D4012  
0D4013  
0D8675A  
0D8675B  
0D4015  
0D4016  
9
8
1
2
1
2
8
4
4
2
4
4
4
4
4
2
12  
2
2
4
1
4
2
1
1
1
1
1
1
1
1
1
SEAL, VALVE STEM D7  
WASHER, VALVE SPRING  
NUT, JAM ROCKER ARM  
STUD, ROCKER ARM M8-1.0 x 57mm  
PIVOT, ROCKER ARM  
ROCKER ARM  
PLATE, PUSH ROD GUIDE  
SCREW HHFC M8-1.25 X 65  
VALVE, EXHAUST  
VALVE, INTAKE  
TAPPET, SOLID  
ASSEMBLY, HEAD #2 G&S  
PUSHROD, 144.6  
GASKET, HEAD  
BARBED ELBOW 90 3/8NPT X 3/8 L0CKTITE  
KIT GASKET  
KIT PISTON & RINGS  
KIT BREATHER ASSEMBLY  
KIT GOVERNOR ASSEMBLY  
KIT HEAD ASSEMBLY CYLINDER 1  
KIT HEAD ASSEMBLY CYLINDER 2  
KIT OIL RELIEF  
21  
22  
0D4122E  
1
0C2969  
0D3961  
0D2157  
0C5313  
0D4123  
078699E  
0C3011  
0C3009  
0C3010  
093873  
0C5315  
0C5998  
0D1667  
0C2991  
2
2
2
1
1
2
2
2
2
2
1
1
1
2
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
WASHER, LOCK RIB M6  
GEROTOR, OUTER  
CLAMP, OIL TUBE  
ARM, GOVERNOR  
E-RING, GOVERNOR ARM  
KIT GEAR COVER  
37  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GT-990/760 Engine – Drawing No. 0D8674-C Part 2  
74  
138  
75  
139  
135  
122  
124  
125  
123  
76  
77  
136  
137  
120  
125  
79  
124  
133  
134  
78  
132  
131  
119  
80  
116  
115  
127  
114  
117  
121  
118  
97  
128  
129  
81  
98  
130  
126  
99  
82  
96  
95  
83  
100  
102  
84  
109  
103  
105  
104  
93  
87  
86  
85  
88  
94  
91  
110  
97  
98  
99  
106  
112  
89  
90  
101  
89  
107  
108  
112  
92  
112  
113  
111  
38  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GT-990/760 Engine – Drawing No. 0D8674-C Part 2  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
74  
75  
76  
77  
78  
0C5136A  
0C3024  
0C3040  
0C8127  
0D8564A  
0D8564B  
0D2595  
0D4417  
0C3025  
0D3083  
0C7292  
070185  
075281  
0C1085  
043182  
035461A  
2
1
1
1
1
1
4
4
1
1
1
1
1
2
2
2
KNOB, AIR CLEANER  
COVER, AIRBOX NG/LP  
PRE-CLEANER,  
ELEMENT, AIR CLEANER  
ASSEMBLY, MIXER/AIRBOX 990  
ASSEMBLY, MIXER/AIRBOX 760  
SCREW SHOULDER (8MM) M6-1.0 X 18  
WASHER,RUBBER 1/4" X 1/8" THICK  
SWITCH, OIL PRESS  
ASSEMBLY, OIL DRAIN HOSE  
NIPPLE, 3/4"-16 UNF  
FILTER, OIL D 69 X 64 LONG  
SWITCH, THERMAL 284F  
SCREW PPHM M3-0.5 X 8  
WASHER LOCK M3  
BARBED STR 1/4NPT X 3/8 WITH VIBRA  
SEAL  
CLAMP HOSE #5.5 .62 - .62  
HOSE, 3/8" I.D. X 6" LONG  
COOLER, OIL  
108  
109  
110  
111  
112  
0C3034  
0C8549  
0C3022A  
0D1131  
045756  
1
1
1
1
27  
NUT,HEX M24  
SNORKEL, AIR INTAKE  
HOUSING, BLOWER NG COOLER  
GUARD, FAN  
SCREW TAPTITE M6-1X10 YELLOW  
CHROME  
NUT, GROMMET 1/4 PLUG  
HOSE, BREATHER  
BRACKET, STARTER  
SCREW HHC M6-1.0 x 16 WITH LOCK-  
WASHER  
WRAPPER, UPPER CYLINDER 1  
WRAPPER, LOWER CYLINDER 1  
WRAPPER, LOWER CYLINDER 2  
WRAPPER, UPPER CYLINDER 2  
SCREW TAPTITE M5-0.8 X 8 BP  
ASSEMBLY, GROUND WIRE  
ASSEMBLY, IGNITION COIL  
WASHER LOCK M6-1/4  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
113  
114  
115  
116  
0C9763  
0C3036  
0C8919  
079246  
4
1
1
1
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
0C3018  
0C3019  
0D1142A  
0D1143  
066849B  
0C3053  
0C3052  
022097  
092079  
0C3017  
0D4529  
022129  
061906  
082774  
052859  
0C8468  
0C3048  
0D3754  
0D3742  
0C8482  
0D2576  
0D3743  
0D3705  
1
1
1
1
2
1
2
4
4
1
2
2
2
1
1
1
1
1
1
1
1
1
1
89  
90  
91  
92  
93  
94  
95  
96  
97  
040173  
0C9806  
0C3026  
0C9764  
0C3043  
0C7694  
0C7693  
0C3041  
070008  
070006  
040976  
0C3016A  
085011  
0C3725B  
0C3031  
0C3032  
0A5992  
051754  
0C3033  
4
2
1
4
2
1
1
2
4
4
4
1
1
1
1
1
2
2
1
SCREW TAPTITE M6-1.0 X 25 BP  
STARTER  
SPARKPLUG  
PLASTITE,1/4-15 X 3/4  
GASKET, MANIFOLD / PORT  
MANIFOLD CYLINDER 2  
MANIFOLD CYLINDER 1  
SLEEVE, RUBBER  
WASHER LOCK M8-5/16  
SCREW HHC M8-1.25 X 85 G8.8  
KEY, WOODRFF 4 X 19D  
NUT HEX LOCK M10-1.50  
SPRING, ANTI-LASH  
ROD, GOVERNOR CONTROL  
ASSEMBLY, GOVERNOR LEVER  
SPRING, GOVERNOR  
ASSEMBLY, GOVERNOR ADJUSTER  
SCREW SHC M10-1.5 X 70 G10.9  
SPRING, GOVERNOR IDLE  
ASSEMBLY, GOVERNOR ADJUSTER  
BRACKET  
WASHER FLAT M8 SS  
98  
99  
WASHER LOCK M8 SSTL  
SCREW SHC M8-1.25 X 20 G12.9  
PLATE, BACKING GT990 WITH OIL COOL  
INSULATOR ASSEMBLY IGNITION  
FLYWHEEL ASSEMBLY  
FAN, NYLON  
PLATE, FAN  
WASHER SHAKEPROOF INT M8 SS  
SCREW HHC M8-1.25 X 12 G8.8  
WASHER, 25mm I.D.  
100  
101  
102  
103  
104  
105  
106  
107  
140  
0C2993  
1
SEAL, GOVERNOR SHAFT  
39  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
7 kW Generator – Drawing No. 0D3504-B  
36  
45  
30  
47  
49  
50  
48  
34  
46  
44  
34  
40  
43  
42  
41  
6
51  
35  
34  
7
29  
1
31  
37  
18  
28  
2
39  
3
26  
21  
38  
8
24  
25  
4
9
22  
32  
19  
30  
10  
10  
14  
20  
12  
17  
10  
28  
27  
38  
5
31  
32  
31  
16  
23  
11  
52  
33  
28  
15  
19  
17  
32  
13  
31  
28  
31  
32  
40  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
7 kW Generator – Drawing No. 0D3504-B  
ITEM  
PART NO.  
QTY.  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
0C6934  
0C9935H  
0C9934H  
0C6043A  
0C8096  
0C9593  
0D3220  
0C8860  
031971  
0C3168  
056147  
0D1847  
0C7038C  
0D1647  
0D2558  
0C7038B  
0C7758  
0388050AE0  
0C2417A  
082121C  
066386  
029451  
049451  
022237  
022511  
022131  
039287  
022145  
049820  
090388  
022129  
022259  
059637  
048031K  
0C9592  
057822  
040976  
0C2824  
025145  
090239  
0C6989  
0D1214  
0C8127  
0C3024  
0D2273  
055934N  
074994  
0C5136A  
074906  
022473  
0D4662  
0C8290  
1
1
1
1
1
1
1
1
1
3
1
4
1
1
1
1
ADAPTOR, ENGINE  
STATOR  
ROTOR  
CARRIER, REAR BEARING  
FAN, 8" CURVED BLADE  
MUFFLER  
TAIL PIPE, MUFFLER  
PANEL, MUFFLER BASE  
BEARING #6205-2NSE-C3  
5/16 SPECIAL L/WASH  
BOLT ROTOR HHCS 5/16"-24 X 13-1/2" G5  
BOLT STATOR IHHC M8-1.25 x 305mm  
BRACKET, ALTERNATOR MOUNTING  
DUCT, ALTERNATOR AIR  
GASKET, ALTERNATOR AIR DUCT  
BRACKET, ENGINE MOUNTING  
RUBBER MOUNT  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
4
1
1
1
CABLE, #6 40" BLACK BATTERY  
EARTH STRAP 3/8X 3/8  
CLIP-J VINYL COAT .625 ID  
ASSEMBLY BRUSH HOLDER  
TAPE ELEC UL FOAM 1/8 X 1/2  
WASHER FLAT .406ID X 1.62OD  
WASHER LOCK 3/8  
BOLT HHC 3/8-16 X 1-1/4 G5  
WASHER FLAT 3/8 ZINC  
SCREW HHC M8-1.25 X 45 G8.8  
WASHER FLAT 5/16 ZINC  
NUT LOCK HEX M8-1.25 NYL INSRT  
SCREW TAP M6-1.0X12 BP  
WASHER LOCK M8-5/16  
NUT HEX 5/16-18 STEEL  
SCREW TAPTITE 3/8-16X 3/4" BP  
BAND, HOSE CLAMP 35.05 DIA.  
BELLOWS  
1
1.8 FT  
1
4
4
4
4
14  
4
3
13  
8
2
3
1
2
2
3
1
1
1
1
1
1
1
CLAMP HOSE #8 .53 - 1.00  
SCREW SHC M8-1.25 X 20 G12.9  
SCREW TAPR #10-32 X 9/16  
U-BOLT 5/16"-18 X 1.25" W/ SADDLE  
GASKET, EXHAUST  
STINGER, ENGINE AIR IN  
BASE, AIR CLEANER  
ELEMENT, AIR CLEANER  
COVER, AIR CLEANER NG/LP  
TUBE, 1.25"O.D. x 20Ga. x 12.125" LONG  
CLAMP VINYL 1.31 X .281 Z  
HOSE 1\2ID LP GAS  
1
1.25 FT  
2
4
4
6
1
KNOB, AIR CLEANER  
SCREW TAPTITE M6-1 X 20 BP  
WASHER FLAT 1/4 ZINC  
SCREW HHTT M8-1.2 X 20 BP  
GASKET, PANEL  
41  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
12 kW and 15 kW Generator – Drawing No. 0D3417-B  
42  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
12 kW and 15 kW Generator – Drawing No. 0D3417-B  
ITEM  
PART NO.  
QTY.  
DESCRIPTION  
1
2
0C6934  
0C7930  
0D2359  
0C7944  
0D2356  
0C6043  
0D2336  
0C6042  
0D3220  
0C8101  
056482  
0C3168  
0D1838  
0D1846  
0C7038  
0D1609  
0D2559  
0C7038A  
0C7758  
0388050AD0  
0C2417A  
082121C  
066386  
029451  
049451  
022237  
022511  
022131  
039288  
022145  
049820  
045756  
022129  
022259  
059637  
083512  
074994  
057822  
052858  
0C2824  
025145  
0C4138  
048031C  
030340  
1
1
ADAPTOR, ENGINE  
STATOR 12KW  
STATOR 15KW  
ROTOR 12KW  
3
1
ROTOR 15KW  
4
5
6
7
8
1
1
1
1
1
1
3
1
4
1
1
1
1
4
1
1
CARRIER, REAR BEARING  
FAN, 12" CURVED BLADE  
MUFFLER  
TAIL PIPE, MUFFLER  
PANEL, MUFFLER BASE  
BEARING 1.1811-2.8346  
5/16 SPECIAL LOCK WASHER  
BOLT, HHCS 3/8"-24 x 15.50"  
BOLT, HHCS M8-1.25 x 345mm  
BRACKET, ALTERNATOR MOUNTING  
DUCT, ALTERNATOR AIR  
GASKET, ALTERNATOR AIR DUCT  
BRACKET, ENGINE MOUNTING  
RUBBER MOUNT  
CABLE, #6 48" BLACK BATTERY  
EARTH STRAP 3/8X 3/8  
CLIP-J, VYNL COAT 0.625" ID  
ASSEMBLY BRUSH HOLDER  
TAPE ELEC UL FOAM 1/8 X 1/2  
WASHER FLAT .406ID X 1.62OD  
WASHER LOCK 3/8  
SCREW HHC 3/8-16 X 1-1/4 G5  
WASHER FLAT 3/8 ZINC  
SCREW HHC M8-1.25 x 55 G8.8  
WASHER FLAT 5/16 ZINC  
NUT LOCK HEX M8-1.25 NYL INSERT  
SCREW TAPTITE M6-1.0X10 BP  
WASHER LOCK M8-5/16  
NUT HEX 5/16-18 STEEL  
SCREW TAPTITE 3/8-16 X 3/4 BP  
SCREW TAPTITE M8-1.25 X 16 BP  
HOSE RES 1/2 LP GAS  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
1
1
2.6 FT  
1
5
4
4
4
14  
4
2
10  
8
2
4
2.83 FT  
4
4
3
1
2
2
CLAMP HOSE #8 .53 - 1.00  
NUT LOCK M8  
SCREW TAP-R #10-32 x 9/16  
U-BOLT 5/16"-18 X 1.25" WITH SADDLE  
GASKET, EXHAUST PORT  
CLAMP HOSE BAND ¼"  
HOSE 1/4 ID SAE 30R7  
1.33 FT  
43  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GN410 Engine – Drawing No. 0D3539-B Part 1  
44  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GN410 Engine – Drawing No. 0D3539-B Part 1  
ITEM  
PART NO. QTY. DESCRIPTION  
ITEM  
PART NO. QTY. DESCRIPTION  
1
2
3
4
5
6
071978  
071980  
021533  
0C5848  
071983  
0D4287  
1
1
1
1
2
1
ASSEMBLY, CONNECTING ROD  
PIN, PISTON D20  
SET, PISTON RING 90MM  
PISTON, HC  
RETAINER, PISTON PIN 20  
ASSEMBLY, CRANKSHAFT  
GH410 SMALL TAPER  
ARM, GOVERNOR RC45  
PIN, "R" GOVERNOR ARM  
WASHER, GOVERNOR ARM THRUST  
CRANKCASE, SUBASSEMBLY  
WITH PLUGS GH410  
SEAL, 35 I.D. CRANKSHAFT  
ASSEMBLY, GOVERNOR GEAR  
C-RING, GOVERNOR GEAR RETAINER  
SPOOL, GOVERNOR- MACHINE  
ASSEMBLY, CAMSHAFT & GEAR  
GASKET , CRANKCASE  
GASKET, HEAD 410  
COVER, OIL PRESSURE RELIEF  
SPRING, OIL RELIEF 360  
BALL, DIA 11/32 PRESSURE RELIEF  
WASHER, THRUST GOVERNOR GEAR  
ASSEMBLY, COVER, GEAR TOP  
CHECK / FILL  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
086516  
086517  
088396B  
083897  
077158  
0C3150  
072694  
083907  
072696  
078694  
021742  
0D6094  
076329  
086254  
0D4788  
1
1
2
2
1
1
2
2
2
1
4
1
1
1
1
VALVE, EXHAUST  
VALVE, INTAKE  
PUSH ROD  
TAPPET  
ASSEMBLY, SCREEN OIL PICK-UP  
GASKET, ROCKER COVER 410  
STUD, D20 PIVOT BALL  
ROCKER ARM  
NUT, JAM (ROCKER ARM)  
PLATE, PUSH ROD GUIDE  
SCREW, HHFL M10-1.5 X 105  
ASSEMBLY, ROCKER COVER BREATHER  
PLUG, OIL FILL PLASTIC  
O-RING 17.8 I.D. x 2.4  
7
8
9
0A7628  
078658  
078659  
088261E  
1
1
2
1
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
072655  
0A7975  
078645  
0A7811  
0A9877  
076701  
021713B  
078691  
0A5771  
0A5776  
076361  
0A8898D  
2
1
1
1
1
1
1
1
1
1
1
1
PLUG, STANDARD PIPE 3/8 STEEL  
SQUARE HEAD  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
074908  
086515  
078606  
0A1442  
078672  
089673  
0B2104  
078699C  
0A7627  
043790A  
1
4
4
8
1
2
1
2
1
1
SCREW, TAPTITE M5-0.8 X 10 BP  
KEEPER, VALVE SPRING  
SCREW & LOCKWASHER M6-1 X 12  
SCREW, HHFC M8-1.25 X 42  
SEAL, VALVE STEM D7  
WASHER, VALVE SPRING  
WASHER, LARGE SPRING  
DOWEL, SEAMED SLEEVE  
SHAFT, GOVERNOR RC55  
BARBED ELBOW 90 3/8NPT X 3/8  
LOCKTITE  
23  
24  
25  
26  
27  
0D2274  
0C4391  
086025  
0C7393  
021714  
2
2
1
1
1
RETAINER, VALVE SPRING  
VALVE SPRING LF  
SET,GEROTOR 12 THK  
BALANCER  
ASSEMBLY,CYLINDER HEAD  
SEATS & GUIDES  
53  
54  
088590  
078699B  
1
1
DOWEL DIA 12 X 18L  
DOWEL, SLEEVE SEAMED 12 DIA.  
45  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GN410 Engine – Drawing No. 0D3539-B Part 2  
46  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GN410 Engine – Drawing No. 0D3539-B Part 2  
ITEM  
PART NO.  
QTY.  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
0C1069  
0D2922  
0C8435  
0C9997  
088434  
045756  
088433B  
0C3794  
021544  
040976  
022129  
0C2458A  
083512  
0D1401  
091039  
0C9619  
049811  
022097  
040945  
086999  
0D5667A  
049821  
099236  
070185  
082774  
091222ESRV  
067198N  
067890  
072347  
072734  
072735  
0C3978  
0C6040  
084542  
092079  
0A8222  
083502  
083503  
0D3083  
0C8434  
090072  
075281  
043182  
0C1085  
5
1
1
1
1
11  
1
1
1
2
2
1
1
1
1
1
2
4
2
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
2
SCREW, TAPTITE M6-1.0X8 YELLOW CHROME  
HOUSING, BLOWER  
TUBE, DIPSTICK  
GUARD, FAN  
WRAPPER, BOTTOM  
SCREW, TAPTITE M6-1X10 YELLOW CHROME  
WRAPPER, TOP  
BUMPER, NEOPRENE  
STARTER ASSEMBLY, EATON  
SCREW, SHC M8-1.25 X 20 G12.9  
WASHER, LOCK M8-5/16  
BACKPLATE, L/F D/F  
SCREW, TAPTITE M8-1.2 X 16 YC  
BREATHER TUBE  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
GASKET, INTAKE ADAPTER  
ASSEMBLY, PLASTIC CARB  
WASHER, FLAT M6  
WASHER, LOCK M6-1/4  
SCREW, SHC M6-1.0 X 20 G12.9  
GASKET,OIL FILTR ADAPTER  
ADAPTER, OIL FILTER  
SCREW, SHC M8-1.25 X 30 G12.9  
SWITCH, OIL 8.0 PSI  
FILTER, OIL DIA. 69 X 64 LG  
KEY, WOODRFF 4 X 19D  
FLYWHEEL WITH RING GEAR 32DEG.  
WASHER,BELV-20 X 2.2  
NUT, HEX - FLYWHEEL  
SPARKPLUG  
ASSEMBLY,GOVERNOR LEVER 12 HP  
ROD,GOVERNOR CONTROL.  
SPRING, ANTI-LASH  
ASSEMBLY, WIRE  
ASSEMBLY, IGNITION COIL - GN LF  
SCREW, TAPTITE M6-1.0 X 25 BP  
SPRING, GOVERNOR 8#  
BOLT, GOVERNOR ADJUST M5  
NUT, M5-0.8 METAL LOCK  
ASSEMBLY, OIL DRAIN HOSE  
ASSEMBLY, CAP & DIPSTICK  
O-RING 9/16 X 3/4 X 3/32  
SWITCH, THERMAL  
WASHER LOCK M3  
SCREW PPHM M3-0.5 X 8  
47  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Gas Regulator – Drawing No. 0D8720-B  
48  
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Section 7 — Exploded Views and Parts Lists  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Gas Regulator – Drawing No. 0D8720-B  
ITEM  
PART NO.  
QTY.  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
0D5694  
0C5765  
0C4647  
0C4680  
0C6070  
022985  
022264  
075475  
0C5760A  
0C6606  
097934  
0C4645  
0C5761  
0C5968  
0C6066  
0C5759  
0C5764  
0C5764A  
070728  
070728  
0C6069  
0C5762  
045764  
045764  
0C6731  
0C6067  
0C4706  
0C6068  
0C4643A  
026073  
0A4032  
0D3308  
0D3308  
0C4643  
028414A  
0D5698A  
0C5760B  
0C5760C  
0C5760D  
0C5760E  
0D3973  
1
1
1
1
1
4
4
4
1
2*  
2*  
2*  
2*  
2*  
2*  
2*  
2
CASTING, TWIN REGULATOR HOUSING  
SOLENOID, TWIN REGULATOR  
GASKET , SOLENOID  
PLUNGER, LP REGULATOR ASSEMBLY  
SPRING-SOLENOID, PLUNGER  
WASHER, FLAT #6  
WASHER, LOCK M4  
SCREW PPHM M4-0.7 X 10  
JET, GN 410 ENGINE LP (7KW)  
BARBED STRAIGHT 1/2NPT x 1/2  
O-RING, CHECK VALVE  
ADJUSTER SCREW, TWIN REGULATOR  
LEVER, REGULATOR  
SUPPORT, INLET SEAL  
SEAL, INLET  
PIN, PIVOT ARM  
SPRING, REGULATOR  
SPRING, REGULATOR (7KW)  
SCREW, PFHMS M3-0.5 x 5  
SCREW, PFHMS M3-0.5 x 5 (7KW)  
GASKET, DIAPHRAGM  
COVER, TWIN REGULATOR  
SCREW, TAPTITE M4X8 BP  
SCREW, TAPTITE M4X8 BP (7KW)  
RIVET, POP .118 X .125  
1
4
2
18  
19  
20  
21  
2*  
2*  
16  
8
2*  
2*  
2*  
2*  
2*  
1
2*  
4
2
1
1
22  
23  
24  
25  
26  
27  
28  
29  
SUPPORT, DIAPHRAGM  
DIAPHRAGM, TWIN REGULATOR  
CAP, DIAPHRAGM SUPPORT  
INLET, TWIN REGULATOR 11.11 DIA.  
PLUG, STANDARD PIPE 1/8 STEEL SQUARE HEAD  
PIN, LIMITED ADJUSTMENT  
WASHER, FLAT M3 X 10mm O.D.  
WASHER, FLAT M3 X 10mm O.D. (7KW)  
INLET, TWIN REGULATOR NO HOLE - NOT SHOWN (7KW)  
BARBED STRAIGHT 1/8"NPT X 1/4"  
JET IDLE PRIMER PHILLIPS HD  
JET, GT760 CYL 1 NAT GAS  
JET, GT760 CYL 2 NAT GAS  
JET, GT 760 LP CYL 1  
30  
31  
32  
33  
34  
35  
36  
37  
1
1
1
1
1
2
JET, GT760 LP CYL 2  
PLUG, EXPANSION 16mm  
* A QUANTITY OF 1 IS TO BE USED ON 7KW HOME STANDBY  
49  
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Section 8 — Mounting Dimensions  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
Drawing No. 0D3739-B  
50  
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Section 9 — Notes  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
51  
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Section 10 – Warranty  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
NOTE: This Emission Control Warranty Statement pertains to this product only IF the generator size is 15 kW or below.  
CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
The California Air Resources Board (CARB) and the United States Environmental Protection Agency (EPA), together with  
Generac Power Systems, Inc. (Generac), are pleased to explain the Emission Control System Warranty on your new engine.*  
New (small off road) engines must be designed, built and equipped to meet stringent anti-smog standards for the state of  
California and the federal government. Generac will warrant the emission control system on your engine for the periods of  
time listed below provided there has been no abuse, neglect, unapproved modification or improper maintenance of your  
engine.  
Your emission control system may include parts such as the carburetor, ignition and exhaust systems. Generac will repair your  
engine at no cost to you for diagnosis, replacement parts and labor, should a warrantable condition occur.  
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE:  
Emissions control systems on engines are warranted for two years as hereinafter noted. If, during such warranty period, any  
emission-related component or system on your engine is found to be defective in materials or workmanship, repairs or  
replacement will be performed by a Generac Authorized Warranty Service Facility.  
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES:  
As the engine purchaser/owner, you are responsible for the completion of all required maintenance as listed in your factory  
supplied Owner’s Manual. For warranty purposes, Generac recommends that you retain all receipts covering maintenance on  
your engine. However, Generac cannot deny warranty solely because of the lack of receipts or for your failure to ensure the  
completion of all scheduled maintenance.  
As the engine purchaser/owner, you should, however, be aware that Generac may deny any and/or all warranty coverage or  
responsibility if your engine, or a part/component thereof, has failed due to abuse, neglect, improper maintenance or unap-  
proved modifications, or the use of counterfeit and/or “grey market” parts not made, supplied or approved by Generac.  
You are responsible for presenting your engine to a Generac Authorized Warranty Service Facility as soon as a  
problem occurs. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.  
Warranty service can be arranged by contacting either your selling dealer or a Generac Authorized Warranty Service Facility.  
To locate the Generac Authorized Warranty Service Facility nearest you, call our toll-free number:  
1-800-333-1322  
IMPORTANT NOTE: This warranty statement explains your rights and obligations under the Emission Control System Warranty  
(ECS Warranty), which is provided to you by Generac pursuant to California and federal law. See also the “Generac Limited  
Warranties for Generac Power Systems, Inc.,” which is enclosed herewith on a separate sheet, also provided to you by Generac.  
The ECS Warranty applies only to the emission control system of your new engine. If there is any conflict in terms between  
the ECS Warranty and the Generac Warranty, the ECS Warranty shall apply except in circumstances where the Generac  
Warranty may provide a longer warranty period. Both the ECS Warranty and the Generac Warranty describe important rights  
and obligations with respect to your new engine.  
Warranty service can be performed only by a Generac Authorized Warranty Service Facility. When requesting warranty serv-  
ice, evidence must be presented showing the date of the sale to the original purchaser/owner. The purchaser/owner shall be  
responsible for any expenses or other charges incurred for service calls and/or transportation of the product to/from the  
inspection or repair facilities. The purchaser/owner also shall be responsible for any and/or all damages or losses incurred while  
the engine is being transported/shipped for inspection or warranty repairs.  
If you have any questions regarding your warranty rights and responsibilities, you should contact Generac at the  
following address:  
ATTENTION WARRANTY DEPARTMENT  
GENERAC POWER SYSTEMS, INC.  
P.O. BOX 297  
WHITEWATER, WI 53190  
Part 1  
52  
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Section 10 – Warranty  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
EMISSION CONTROL SYSTEM WARRANTY  
Emission Control System Warranty (ECS Warranty) for 1997 and later model year engines:  
(a) Applicability: This warranty shall apply to 1997 and later model year engines. The ECS Warranty Period shall begin on the  
date the new engine or equipment is purchased by/delivered to its original, end-use purchaser/owner and shall continue for  
24 consecutive months thereafter.  
(b) General Emissions Warranty Coverage: Generac warrants to the original, end-use purchaser/owner of the new engine or  
equipment, and to each subsequent purchaser/owner, that each of its engines is ...  
(1) Designed, built and equipped so as to conform with all applicable regulations adopted by the EPA and CARB pursuant to  
their respective authority, and  
(2) Free from defects in materials and workmanship which, at any time during the ECS Warranty Period, may cause a war-  
ranted emissions-related part to fail to be identical in all material respects to the part as described in the engine manu-  
facturer’s application for certification.  
(c) The ECS Warranty only pertains to emissions-related parts on your engine, as follows:  
(1) Any warranted, emissions-related parts that are not scheduled for replacement as required maintenance in the Owner’s  
Manual shall be warranted for the ECS Warranty Period. If any such part fails during the ECS Warranty Period, it shall be  
repaired or replaced by Generac according to Subsection (4) below. Any such part repaired or replaced under the ECS  
Warranty shall be warranted for the remainder of the ECS Warranty Period.  
(2) Any warranted, emissions-related part that is scheduled only for regular inspection as specified in the Owner’s Manual  
shall be warranted for the ECS Warranty Period. A statement in such written instructions to the effect of “repair or replace  
as necessary” shall not reduce the ECS Warranty Period. Any such part repaired or replaced under the ECS Warranty shall  
be warranted for the remainder of the ECS Warranty Period.  
(3) Any warranted, emissions-related part that is scheduled for replacement as required maintenance in the Owner’s Manual  
shall be warranted for the period of time prior to the first scheduled replacement point for that part. If the part fails prior  
to the first scheduled replacement, the part shall be repaired or replaced by Generac according to Subsection (4) below.  
Any such emissions-related part repaired or replaced under the ECS Warranty shall be warranted for the remainder of the  
ECS Warranty Period prior to the first scheduled replacement point for such emissions-related part.  
(4) Repair or replacement of any warranted, emissions-related part under this ECS Warranty shall be performed at no charge  
to the owner at a Generac Authorized Warranty Service Facility.  
(5) When the engine is inspected by a Generac Authorized Warranty Service Facility, the owner shall not be held responsible  
for diagnostic costs if the repair is deemed warrantable.  
(6) Generac shall be liable for damages to other original engine components or approved modifications proximately caused  
by a failure under warranty of any emission-related part covered by the ECS Warranty.  
(7) Throughout the ECS Warranty Period, Generac shall maintain a supply of warranted emission-related parts sufficient to  
meet the expected demand for such emission-related parts.  
(8) Any Generac authorized and approved emission-related replacement part may be used in the performance of any ECS  
Warranty maintenance or repairs and will be provided without charge to the purchaser/owner. Such use shall not reduce  
Generac’s ECS Warranty obligations.  
(9) Unapproved, add-on, modified, counterfeit and/or “grey market” parts may not be used to modify or repair a Generac  
engine. Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim. Generac  
shall not be held liable hereunder for failures of any warranted parts of a Generac engine caused by the use of such an  
unapproved, add-on, modified, counterfeit and/or “grey market” part.  
EMISSION RELATED PARTS INCLUDE THE FOLLOWING:  
1) Fuel Metering System:  
2) Air Induction System including:  
a) Intake pipe/manifold  
b) Air cleaner  
1.1) Gasoline carburetor assembly and its  
internal components (if so equipped).  
a) Fuel filter (if so equipped)  
b) Carburetor gaskets  
c) Fuel pump (if so equipped)  
3) Ignition System including:  
a) Spark plug  
b) Ignition module  
1.2) LPG carburetion assembly and its  
internal components (if so equipped).  
a) Fuel controller (if so equipped)  
b) Mixer and its gaskets (if so equipped)  
c) Carburetor and its gaskets (if so equipped)  
d) Primary gas regulator (if so equipped)  
e) LP liquid vaporizer (if so equipped)  
4) Catalytic Muffler Assembly (if so equipped) including:  
a) Muffler gasket  
b) Exhaust manifold  
5) Crankcase Breather Assembly including:  
a) Breather connection tube  
*Generac engine types covered by this warranty statement include the following:  
1) Utility  
2) Lawn and Garden Equipment  
3) Recreational Vehicle (RV) Generator  
4) Industrial Mobile (IM) Generator  
Part 2  
53  
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Section 10 – Warranty  
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators  
GENERAC POWER SYSTEMS STANDARD "TWO YEAR" LIMITED WARRANTY FOR  
GUARDIAN “EMERGENCY AUTOMATIC STANDBY GENERATORS”  
For a period of two years from the date of original sale, Generac Power Systems, Inc. (Generac) will, at its option, repair or  
replace any part which, upon examination, inspection and testing by Generac or a Generac Authorized Warranty Service Dealer,  
is found to be defective under normal use and service, in accordance with the warranty schedule set forth below. Any equip-  
ment that the purchaser/owner claims to be defective must be returned to and examined by the nearest Generac Authorized  
Warranty Service Dealer. All transportation costs under the warranty, including return to the factory, are to be borne and pre-  
paid by the purchaser/owner. This warranty applies only to Generac emergency automatic standby generators sold and rated  
for use in "Standby" applications.  
WARRANTY SCHEDULE  
YEARS ONE and TWO - 100% (one hundred percent) transferable coverage on Labor and Part(s) listed (proof of purchase and  
maintenance is required):  
• Engine - All Components  
• Alternator - All Components  
• Transfer System - All Components  
All warranty expense allowances are subject to the conditions defined in Generac's Warranty Policies, Procedures and Flat Rate  
Manual.  
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING:  
• Generac generators that utilize non-Generac replacement parts.  
• Generac/Guardian generators utilizing non-Generac/Guardian automatic transfer switches.  
• Any Generac generators used as rental or trailer mounted applications.  
• Units used for prime power in place of existing utility power where utility power is present or in place of utility power where  
utility power service does not normally exist.  
• Costs of normal maintenance, adjustments, installation and start-up.  
Failures caused by any contaminated fuels, oils, coolants or lack of proper fluid amounts.  
Failures due, but not limited, to normal wear and tear, accident, misuse, abuse, negligence or improper installation. As with  
all mechanical devices, the Generac engines need periodic part(s) service and replacement to perform well. This warranty  
will not cover repair when normal use has exhausted the life of a part(s) or engine.  
Failures caused by any external cause or act of God, such as collision, theft, vandalism, riot or wars, nuclear holocaust, fire,  
freezing, lightning, earthquake, windstorm, hail, volcanic eruption, water or flood, tornado or hurricane.  
• Damage related to rodent infestation.  
• Products that are modified or altered in a manner not authorized by Generac in writing.  
• Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any delay in repair or  
replacement of the defective part(s).  
Failure due to misapplication.  
Telephone, cellular phone, facsimile, internet access or other communication expenses.  
• Living or travel expenses of person(s) performing service, except as specifically included within the terms of a specific unit  
warranty period.  
• Expenses related to "customer instruction" or troubleshooting where no manufacturing defect is found.  
• Rental equipment used while warranty repairs are being performed.  
• Overnight freight costs for replacement part(s).  
• Overtime labor.  
• Starting batteries, fuses, light bulbs and engine fluids.  
USE OF NON-GENERAC/GUARDIAN TRANSFER SWITCHES SHALL VOID THIS WARRANTY WITH RESPECT TO ALL  
GENERAC PRODUCT.  
THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. SPECIFICALLY, GENERAC MAKES  
NO OTHER WARRANTIES AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not  
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.  
GENERAC'S ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT OF PART(S) AS STATED ABOVE. IN NO EVENT  
SHALL GENERAC BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF SUCH DAMAGES ARE A  
DIRECT RESULT OF GENERAC'S NEGLIGENCE. Some states do not allow the exclusion or limitation of incidental or conse-  
quential damages, so the above limitation may not apply to you.  
This warranty gives you specific legal rights. You also have other rights from state to state.  
P.O. BOX 297  
WHITEWATER, WI 53190  
Part No. 0E1370  
Revision A (07/31/02)  
Printed in U.S.A.  
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