Chicago Electric Portable Generator 66603 User Manual

6500 RATED wATTs/7000 MAXIMUM wATTs  
poRTAblE GENERAToR  
66603  
sET Up, opERATING, AND sERvIcING INsTRUcTIoNs  
DANGER  
Using a generator indoors cAN KIll YoU IN MINUTEs.  
Generator exhaust contains carbon monoxide. This is  
a poison you cannot see or smell.  
NEvER use inside a home  
or garage, EvEN IF doors  
and windows are open.  
only use oUTsIDE and  
far away from windows,  
doors, and vents.  
visit our website at: http://www.harborfreight.com  
Read this material before using this product.  
Failure to do so can result in serious injury.  
sAvE ThIs MANUAl.  
©
®
Copyright 2007 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork  
contained herein may be reproduced in any shape or form without the express written consent of  
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing  
improvements, actual product may differ slightly from the product described herein. Tools required for  
assembly and service may not be included.  
For technical questions or replacement parts, please call 1-800-444-3353.  
Manual Revised 10e  
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GENERAl sAFETY RUlEs  
wARNING!  
READ AND UNDERsTAND All INsTRUcTIoNs  
Failure to follow all instructions listed below may result in  
electric shock, fire, and/or serious injury.  
sAvE ThEsE INsTRUcTIoNs  
woRK AREA  
1.  
2.  
Keep your work area clean and well lit. Cluttered and dark areas invite accidents.  
Do not operate power tools in explosive atmospheres, such as in the presence of  
flammable liquids, gases, or dust. Power tools create sparks which may ignite the dust  
or fumes.  
3.  
Keep bystanders, children, and visitors away while operating a power tool.  
Distractions can cause you to lose control. Protect others in the work area from debris  
such as chips and sparks. Provide barriers or shields as needed. Children should never  
be allowed in the work area.  
pERsoNAl sAFETY  
1.  
2.  
stay alert. watch what you are doing, and use common sense when operating a  
power tool. Do not use a power tool while tired or under the influence of drugs,  
alcohol, or medication. A moment of inattention while operating power tools may result  
in serious personal injury.  
Dress properly. Do not wear loose clothing or jewelry. contain long hair. Keep  
your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or  
long hair can be caught in moving parts.  
3.  
4.  
5.  
Remove adjusting keys or wrenches before turning the power tool on. A wrench or a  
key that is left attached to a rotating part of the power tool may result in personal injury.  
Do not overreach. Keep proper footing and balance at all times. Proper footing and  
balance enables better control of the power tool in unexpected situations.  
Use safety equipment. Always wear eye protection. Dust mask, nonskid  
safety shoes, hard hat, or hearing protection must be used for appropriate  
conditions.  
Tool Use And care  
1.  
Do not force the tool. Use the correct tool for your application. The correct tool will  
do the job better and safer at the rate for which it is designed. Do not force the tool and do  
not use the tool for a purpose for which it is not intended.  
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2.  
3.  
Do not use the power tool if the Engine switch does not turn it on or off. Any tool  
that cannot be controlled with the Engine Switch is dangerous and must be replaced.  
Disconnect the spark plug wire from the Engine before making any adjustments,  
changing accessories, or storing the tool. Such preventive safety measures reduce  
the risk of starting the tool accidentally. Always disconnect the spark plug wire before  
performing any inspection, maintenance, or cleaning procedures.  
4.  
5.  
store idle tools out of reach of children and other untrained persons. Tools are  
dangerous in the hands of untrained users.  
Maintain tools with care. Keep the Generator clean. Properly maintained tools are  
less likely to malfunction and are easier to control. Do not use a damaged tool. Tag  
damaged tools “Do not use” until repaired.  
6.  
7.  
8.  
check for misalignment or binding of moving parts, breakage of parts, and any  
other condition that may affect the tools operation. If damaged, have the tool  
serviced before using. Many accidents are caused by poorly maintained tools.  
Use only accessories that are recommended by the manufacturer for your model.  
Accessories that may be suitable for one tool may become hazardous when used on  
another tool.  
cAUTIoN: This generator is not intended to power sensitive electronic equipment*  
without the addition of an appropriate line conditioner and surge protector (both not  
included). Sensitive electronic equipment should be operated on approved inverter type  
generators or pure sine wave generators.  
If the plugged in product operates abnormally or unusually slow, immediately stop using  
the generator as a power source. Always read and adhere to the instruction manual of  
the product to be powered, to make sure that it can be safely and efficiently powered by a  
portable generator.  
Note: When using a generator to provide home standby electricity, a transfer switch (sold  
separately) is needed to prevent back feeding power into the utility line.  
Connections for standby power to a building electrical system must be made by a qualified  
electrician. The connection must isolate the generator power from utility power, and must  
comply with all applicable laws and electrical codes.  
wARNING: Improper connections to a building electrical system can allow electrical  
current from the generator to backfeed into the utility lines. Such backfeed may electrocute  
utility company workers or others who contact the lines during a power outage, and the  
generator may explode, burn, or cause fires when utility power is restored. Consult the  
utility company or a qualified electrician.  
*sensitive electronic equipment includes, but is not limited to, audio/video  
equipment, some television sets, computers, and printers.  
Ac Applications  
1. Before connecting an appliance or power cord to the generator: Make sure that it  
is in good working order. Faulty appliances or power cords can create a potential  
for electrical shock.  
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2. If an appliance begins to operate abnormally, becomes sluggish or stops suddenly,  
turn it off immediately. Disconnect the appliance, and determine whether the  
problem is the appliance, or if the rated load capacity of the generator has been  
exceeded.  
3. Make sure that the electrical rating of the tool or appliance does not exceed that of  
the generator. Never exceed the maximum power rating of the generator. Power  
levels between rated and maximum may be used for no more than 30 minutes.  
4. Substantial overloading will open the circuit breaker. Exceeding the time limit for  
maximum power operation or slightly overloading the generator may not switch  
the circuit breaker or circuit protector OFF, but will shorten the service life of the  
generator.  
sERvIcE  
1. Tool service must be performed only by qualified repair personnel. Service or  
maintenance performed by unqualified personnel could result in a risk of injury.  
2. when servicing a tool, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, And Cleaning” section of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of injury.  
spEcIFIc sAFETY RUlEs  
1. IMpoRTANT! Your warranty is voided if:  
You do not put engine oil in the Engine’s crankcase prior to its first use.  
Before each use, check the oil level. Never run the Engine with low or no engine  
oil. Running the Engine with low or no Engine oil will permanently damage the  
Engine.  
2. Maintain labels and nameplates on the Generator. These carry important  
information. If unreadable or missing, contact Harbor Freight Tools for a  
replacement.  
3. Maintain a safe working environment. Make sure there is adequate surrounding  
workspace.  
4. Avoid unintentional starting. Make sure you are prepared to begin work before  
turning on the Generator.  
5. people with pacemakers should consult their physician(s) before use.  
Electromagnetic fields in close proximity to a heart pacemaker could cause  
pacemaker interference or pacemaker failure. Caution is necessary when near  
the Engine’s magneto or recoil starter.  
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6. Never leave the Generator unattended when it is running. Turn off the Engine  
of the Generator before leaving the work area.  
7. Always use the Generator on a flat, level surface.  
8. Make sure to keep hands, fingers, and feet away from all moving parts of the  
Generator.  
9. Keep all safety guards of the Generator in place and in proper working order.  
ToXIc FUMEs, FIRE, AND EXplosIoN pREcAUTIoNs  
1. This Generator is designed for outdoor use only. Do not operate the  
Generator in a closed area or in a poorly ventilated area. when running,  
the Engine of this unit produces carbon monoxide, a colorless, odorless,  
toxic fume that, when inhaled, can cause serious personal injury or death.  
Whenever possible, use a carbon monoxide detector (not included) to detect  
excessive carbon monoxide fumes in the work area and in the surrounding area.  
2. Gasoline fuel and fumes are flammable, and potentially explosive. Use  
proper fuel storage and handling procedures. Always have multiple ABC class fire  
extinguishers nearby.  
3. Keep the Generator, its Engine, and surrounding areas clean at all times.  
4. when spills of fuel or oil occur, they must be cleaned up immediately.  
Dispose of fluids and cleaning materials as per any local, state, or federal codes  
and regulations. Store oil rags in a covered metal container.  
5. Never store fuel or other flammable materials near the Generator.  
6. Do not smoke, or allow sparks, flames, or other sources of ignition around  
the Generator.  
7. Keep grounded conductive objects, such as tools, away from exposed, live  
electrical parts and connections to avoid sparking or arcing. These events  
could ignite fumes or vapors.  
8. Do not refill the Fuel Tank while the Engine is running or hot.  
9. Do not operate the Generator with known leaks in the Engine’s fuel system.  
10. Use only oil and fuel recommended in the “Product Specifications” section  
of this manual.  
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MEchANIcAl pREcAUTIoNs  
1. prior to performing service, maintenance, or cleaning procedures, always  
make sure the Engine Switch is in its “OFF” position. Allow the Engine to  
completely cool. Then, remove the Spark Plug Wire from the Spark Plug.  
2. Do not alter or adjust any part of the Generator or its Engine that is  
assembled and supplied by the manufacturer or distributor.  
3. Always follow and complete scheduled Engine maintenance.  
chEMIcAl pREcAUTIoNs  
1. Avoid contact with hot fuel, oil, exhaust fumes, and solid surfaces.  
2. Avoid body contact with fuels, oils, and lubricants used in the Engine. If  
swallowed, seek immediate medical treatment. Do not induce vomiting if fuel is  
swallowed. For skin contact, immediately wash with soap and water. For eye  
contact, immediately flush eyes with clean water.  
NoIsE pREcAUTIoN  
prolonged exposure to high noise levels is hazardous to hearing. Always  
wear ANSI-approved hearing protection when operating or working around the  
Generator when it is running.  
ElEcTRIcAl pREcAUTIoNs  
1. All connections and conduits from the Generator to the load must only be installed  
by trained and licensed electricians, and in compliance with all relevant local,  
state, and federal electrical codes and standards, and other regulations where  
applicable.  
2. The Generator must be earth-grounded in accordance with all relevant electrical  
codes and standards before operation.  
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3. If an extension cord (not included) is used, make sure to use only UL® listed cords  
having the correct gauge and length. (see Table A.)  
4. Do not attempt to connect or disconnect load connections while standing in water,  
or on wet or soggy ground.  
5. Do not touch electrically energized parts of the Generator and interconnecting  
cables or conductors with any part of the body, or with any non-insulated  
conductive object.  
6. Connect the Generator only to a load or electrical system (120 volt or 240 volt)  
that is compatible with the electrical characteristics and rated capacities of the  
Generator.  
7. Make sure the Engine Switch is in its “OFF” position before moving the Generator  
and before performing any service, maintenance, or cleaning procedures on the  
unit.  
8. Keep all electrical equipment clean and dry. Replace any wiring where the  
insulation is cracked, cut, abraded, or otherwise degraded. Replace terminals that  
are worn, discolored, or corroded. Keep terminals clean and tight.  
9. Insulate all connections and disconnected wires.  
10. Guard against electric shock. Prevent body contact with grounded surfaces such  
as pipes, radiators, ranges, and refrigerators.  
11. Use only Class BC or Class ABC fire extinguishers on electrical fires.  
MIsc. pREcAUTIoN  
wARNING! The warnings and precautions discussed in this manual cannot  
cover all possible conditions and situations that may occur. It must be understood  
by the operator that common sense and caution are factors which cannot be built  
into this product, but must be supplied by the operator.  
REcoMMENDED MINIMUM wIRE GAUGE FoR EXTENsIoN coRDs* (120/240 volT)  
EXTENsIoN coRD lENGTh  
NAMEplATE AMpEREs  
(at full load)  
25’  
18  
18  
18  
18  
18  
14  
12  
50’  
18  
18  
18  
16  
14  
12  
10  
75’  
18  
18  
16  
14  
12  
10  
-
100’  
18  
16  
14  
12  
10  
-
150’  
16  
14  
12  
12  
-
0 – 2.0  
2.1 – 3.4  
3.5 – 5.0  
5.1 – 7.0  
7.1 – 12.0  
12.1 – 16.0  
16.1 – 20.0  
-
-
-
* Based on limiting the line voltage drop to five volts at 150% of the rated  
TAblE A  
amperes.  
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symbology  
Volts Alternating Current  
v~  
A
Amperes  
No Load Revolutions per Minute  
(RPM)  
n xxxx/min.  
0
UNpAcKING  
When unpacking, check to make sure all of the parts shown on the Parts List in this  
manual are included. If any parts are missing or broken, please call Harbor Freight  
Tools at the number shown on the cover (and at the bottom of each page) of this manu-  
al as soon as possible.  
coNTRol pANEl FEATUREs  
1. Engine switch (2): Used to start and stop the Engine. To start, insert the Engine  
Switch Key and turn to the right to its “START” position. Then immediately  
release the Key. To turn off the Engine, turn the Key all the way to the left to its  
“OFF” position. Always remove the Key from the Engine Switch when the unit is  
not in use.  
(see Figure A, above.)  
2. outlet sockets (8, 10, 10b): The Generator features three Outlet Sockets with  
which to power tools and equipment. The type and voltage of the Outlet Sockets  
are as follows:  
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a. 3-prong, duplex NEMA 120 volt outlet socket (8) - Qty 2  
b. 3-prong, NEMA Twistlock, 120 volt outlet socket (10)  
c. 4-prong, NEMA Twistlock, 240/120 volt outlet socket (10b)  
wARNING! Connect tools and equipment only to the Outlet Socket (120 volt or  
240 volt) that is compatible with the electrical characteristics and rated capacities  
of the tools and equipment being used. (see Figure A.)  
3. circuit breakers (3, 5): The Generator features five Circuit Breakers to protect  
the unit from overloading.  
a. one 20 Amp Circuit Breaker controls the 3-Prong, 120 volt Outlet Socket (8).  
b. one 30 Amp Circuit Breaker controls the 3-Prong, Twistlock, 120 volt Outlet  
Socket (10).  
c. Two 30 Amp Circuit Breakers control the 4-Prong, Twistlock, 240/120 volt Outlet  
Socket (10B).  
d. one In-Line Circuit Breaker to protect the Engine’s Starter (83A).  
Should any of the four Circuit Breakers “trip”, the Engine will automatically shut  
down. In this event, unplug all loads from the Generator. Allow the Generator to  
cool down. Then, press the tripped Circuit Breaker and restart the Engine. (see  
Figure A.)  
4. voltmeters (7): The Generator features two Voltmeters which provide readings  
of voltage output depending on which of the three Outlet Sockets (8, 10, 10B) are  
being used. (see Figure A.)  
5. Grounding Terminal (9): Prior to each use, always connect a ground wire (not  
included) to the Grounding Terminal to properly ground the Generator.  
(see Figure c, page 11.)  
bATTERY INsTAllATIoN  
1. The Engine of the Generator may be started manually or electrically.  
2. To use the Engine’s electric start capability, a Battery (45, not included) must first  
be installed. The type and size Battery required is: 12 volt DC, 7-1/4” long by 3”  
wide. (see Figure b, next page.)  
3. Locate the factory pre-installed Battery Guard Plate (44) and Battery Tray (48)  
beneath the Control Panel of the Generator. (see Figure b.)  
4. Slide the Battery into the Battery Guard Plate (44) with the Battery’s terminals  
facing outward and with the Battery’s negative (--) terminal facing left. (see Figure b.)  
5. Align the two mounting holes in the Battery Bracket (47) with the two threaded  
mounting holes in the Battery Guard Plate (44). Then secure the Battery Bracket  
REV 09l  
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to the Battery Guard Plate, using two Bolts with Lock Washers (46).  
(see Figure b.)  
FIGURE b  
NEGATIvE bATTERY cAblE  
12 vDc bATTERY  
(NoT INclUDED)  
posITIvE bATTERY cAblE  
bATTERY GUARD plATE (44)  
bATTERY bRAcKET (47)  
bATTERY TRAY (48)  
bolT wITh locK wAshER (46)  
6. Connect the Engine’s Positive Battery Cable (RED +) to the Battery’s positive (+)  
terminal. Then connect the Engine’s Negative Battery Cable (BLACK --) to the  
Battery’s negative (--) terminal. (see Figure b.)  
To ATTAch ThE whEEl AssEMblY  
1. With additional assistance, and a proper lifting device, raise the left side of the  
Generator about 6 to 8 inches off the floor surface.  
2. Attach the two Axle Brackets (53) to the lower Frame (42), using two Bolts (52) and  
two Lock Washer Nuts (13) for each Axle Bracket (see Assy. Diagram).  
3. Slide the Axle (49) through the two Axle Brackets (53). (see Assy. Diagram.)  
4. Insert one Wheel (50) onto each end of the Axle (49). (see Assy. Diagram.)  
5. Secure the Axle (49) and Wheels (50) in place, using four Pins (51).  
(see Assy. Diagram.)  
INsTAllATIoN INsTRUcTIoNs  
1. IMpoRTANT: Electrical and other permits may be required for the installation of  
emergency or portable power systems. Make sure to investigate the local building  
and electrical codes before installing this unit.  
2. Locate the Generator (outdoors only) where cooling air is readily available. Locate  
the Generator so that the air inlets and outlets are not blocked by obstructions  
such as bushes, trees, walls, snow drifts, etc. Locating the Generator in the path  
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of heavy winds may require the placement of a barrier for protection. The air inlet,  
in normal weather conditions, should face the prevailing wind direction.  
3. Locate the Generator on a concrete slab or other area where rain drainage or flood  
waters can not reach it.  
4. Generator placement should allow four feet of access to all sides for maintenance  
and proper air cooling.  
5. Place the Generator as close as possible to the electrical tools and equipment  
being powered to reduce the length of extension cords.  
6. To ground the Generator, connect a #6 AWG grounding wire (not included) from  
the Grounding Terminal (9) on the Control Panel to a grounding rod (not included)  
that has been driven at least 24 inches deep into the earth. The grounding rod  
must be an earth-driven copper or brass rod (electrode) which can adequately  
ground the Generator. (see Figure c.)  
FIGURE c  
GRoUNDING TERMINAl (9)  
#6 AwG GRoUNDING wIRE  
(NoT INclUDED)  
GRoUNDING RoD  
(NoT INclUDED)  
coNcRETE slAb  
pRE-sTART INsTRUcTIoNs  
1. IMpoRTANT: Your warranty is voided if you do not put engine oil in the  
Engine’s crankcase prior to its first use. Before each use, check the oil level.  
Never run the Engine with low or no engine oil. Running the Engine with no or low  
engine oil WILL permanently damage the Engine.  
2. The Engine MUST be filled with a high quality engine oil. If the Engine will be  
run in temperatures above 32 degrees Fahrenheit, use sAE 30 weight oil. If the  
Engine will be run in temperatures below 32 degrees Fahrenheit, use sAE 5w-30  
weight oil.  
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3. To add engine oil, unscrew and remove the Oil Dipstick (65A). Pour engine oil into  
the oil fill hole until the level of oil is even with the bottom edge of the oil fill hole (if  
you cannot see the oil through the oil fill hole, then the oil is too low and more oil  
must be added). Then, make sure to screw the Oil Dipstick back into its Dipstick  
Hole. (see Figure D.)  
ThIs GENERAToR hAs AN AUTo-shUTDowN oIl sENsoR. IF ENGINE sTops  
oR wIll NoT sTART, chEcK oIl lEvEl.  
4. To ll the Fuel Tank (31), unscrew and remove the Fuel Tank Cap (34). Fill the  
Fuel Tank with mid-to-high octane unleaded gasoline. Then replace the Fuel  
Tank Cap. When necessary, refill the Fuel Tank. (see Figure E.)  
5. Periodically, check the Fuel Filter (32) for excessive dirt and debris. If necessary,  
remove the Fuel Filter and clean with compressed air. (see Figure E.)  
FUEl vAlvE (41)  
choKE lEvER (21A)  
FIGURE F  
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ThIs UNIT cAN powER ThE FollowING ITEMs  
ITEM  
RUNNING  
wATTs  
sTART-Up  
wATTs  
1 HP Air Compressor  
Belt Sander  
1600  
1200  
1200  
700  
4500  
2400  
3600  
2200  
2150  
2100  
3000  
3100  
Pressure Washer  
Refrigerator/Freezer  
1/2 HP Sump Pump  
1/2 HP Well Pump  
Miter Saw  
1050  
1000  
1650  
1400  
1-1/2 HP Capacitor Start & Run  
Motor  
Central AC-32, 000 BTU  
10” Table Saw  
5000  
1800  
6500  
4500  
Note: Wattages listed above are estimates. Check nameplate wattages on all loads  
before connecting to Generator.  
opERATING INsTRUcTIoNs  
1. Check to make sure the Engine Switch (2) is in its “OFF” position.  
(see Figure A.)  
2. IMpoRTANT: Make sure to unplug any load from the Generator before starting to  
prevent permanent damage to any appliances, tools, or equipment.  
3. Turn the Engine Fuel Valve (41) to its “OPEN” position. Then turn the Engine  
Choke Lever (21A) to its “CHOKE” position. No choke is required if the Engine is  
warm. Make sure the Choke Lever is in the “RUN” position when starting a warm  
Engine. (see Figure F.)  
4. To start the Engine, using the Battery (45) for cranking power, insert the Engine  
Switch Key into the Engine Switch (2). Then turn the Key to the “START” position.  
NoTE: To prolong Starter life, use short starting cycles (5 seconds maximum).  
Then wait one minute before attempting to start again. (see Figure A.)  
5. To start the Engine manually, using the Starter Handle (41A), insert the Engine  
Switch Key and turn the Key to its “RUN” position. Grasp the Starter Handle, and  
pull slowly until resistance is felt. Allow the Starter Rope to rewind slowly. Then,  
pull the Starter Handle with a rapid, full arm stroke. Allow the Rope to rewind  
slowly. If necessary, repeat this procedure until the Engine starts.  
6. When the Engine starts, slowly move the Choke Lever (21A) to its “RUN” position.  
(see Figure F.)  
7. IMpoRTANT: Allow the Generator to run at no load for five minutes after each  
start-up so that the Engine and Generator can stabilize.  
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To coNNEcT ElEcTRIcAl loADs  
1.  
2.  
Start the Engine, and allow the Engine and Generator to run and warm up for five minutes  
after starting with no electrical load.  
wARNING! Connect 120 VAC appliances, tools, and equipment only to the two 120  
VAC Outlet Sockets (8, 10). Connect 240 VAC appliances, tools, and equipment only to  
the one 240 VAC Outlet Socket (10B). (see Figure A.)  
3.  
4.  
cAUTIoN! Never exceed the rated capacity for this Generator, as serious damage  
to the Generator and/or appliances, tools, and equipment could result from an overload.  
Starting and running wattage requirements should always be calculated when matching  
this Generator’s wattage capacity to the appliance, tool, or equipment.  
Most appliances, tools, and equipment will list on the motor nameplate the starting and  
running voltage and amperage requirements. Use the following formula to convert voltage  
and amperage to wattage:  
a. volts x Amps = watts (example: 120 volts x 3 Amps = 360 watts)  
b. To determine the approximate wattage requirement for most appliances, tools, and  
equipment with “inductive” type motors, multiply the wattage that was calculated by 2  
times to assure adequate Generator capacity.  
c. The starting and running wattage for “resistant” loads are the same. Example: a 100  
watt light bulb requires only 100 watts to turn on. Most resistant loads will be listed in  
wattage.  
5.  
Always power the largest electric motor first. The, plug in other appliances, tools, and  
equipment.  
a. Connect “inductive” load appliances, tools, and equipment first. Inductive loads consist  
of small hand tools and some small appliances. Connect the items that require the most  
wattage first.  
b. Connect any lights next.  
c. Voltage sensitive appliances, tools, and equipment should be the last to be connected  
to the Generator. Plug voltage sensitive items such as T.V.’s, VCR’s, microwaves, and  
cordless telephones into a UL® Listed voltage surge protector (not included). Then,  
connect the surge protector into the Generator.  
6.  
7.  
8.  
IMpoRTANT! Failure to connect and operate appliances, tools, and equipment in this  
sequence can cause damage to the Generator, appliances, tools, and equipment and will  
void the Warranty of this Generator.  
Once the Engine is running, simply connect the 120 VAC appliances, tools, and equipment  
into the 120 VAC Outlet Sockets (8, 10). Also, connect a 240 VAC appliance, tool, or  
equipment into the 240 VAC Outlet Socket (10B). (see Figure A.)  
NoTE: If Engine speed or voltage fluctuates with a load below 250 watts, move the En-  
gine Choke Lever (21A) to the “HALF-CHOKE” position. (see Figure F.)  
REV 09l  
SKU 66603  
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NoTE: Do not allow the generator to completely run out of fuel with devices  
attached. A generator’s output may sharply spike as it runs out of fuel, causing  
damage to attached devices.  
9.  
When finished using the Generator, disconnect all electrical loads. Turn the Engine Switch  
(2) to its “OFF” position to stop the Engine. Then, close the Engine Fuel Valve (41). (see  
Figures A and F.)  
10. Allow the Generator and its Engine to completely cool. Then store the unit in a clean, dry,  
safe location out of reach of children and other unauthorized people.  
INspEcTIoN, MAINTENANcE, AND clEANING  
1.  
wARNING! Always make sure the Engine Switch (2) is in its ‘OFF” position and  
the Spark Plug Wire is removed from the Spark Plug (28A) prior to performing any  
inspection, maintenance, or cleaning procedures.  
2. before each use: Inspect the general condition of the Generator and its Engine.  
Check for loose screws, misalignment or binding of moving parts, cracked or  
broken parts, loose hose connections, and any other condition that may affect the  
safe operation of the unit. If abnormal noise or vibration occurs, have the problem  
corrected before further use.  
GENERAToR MAINTENANcE  
1.  
2.  
Keep the Generator clean and dry at all times.  
The Generator should not be operated or stored in locations that include excessive  
moisture, dust, flammable or corrosive vapors. If these substances are on the Generator,  
clean with a soft cloth or brush.  
3.  
1.  
Do not use a garden hose or anything with liquid to clean the Generator. Liquid may enter  
the cooling air slots and could damage the interior workings of the Generator.  
ENGINE MAINTENANcE  
After the first 5 to 8 hours of use: Change the oil. Then, change the oil every 50 hours  
of use. Change the oil every 25 hours of use when operating the Engine under a heavy  
load or in high temperatures.  
oIl DIpsTIcK (65A)  
FIGURE G  
plUG (59A)  
2.  
To change the oil, remove the Plug (59A) and allow the old oil to drain in a proper  
container. Once drained, replace the Plug. (see Figure G.)  
SKU 66603  
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REV 10e  
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3.  
4.  
NoTE: If the Engine will be run in temperatures above 32 degrees Fahrenheit, use sAE  
30 weight oil. If the Engine will be run in temperatures below 32 degrees Fahrenheit, use  
sAE 5w-30 weight oil.  
To add engine oil, unscrew and remove the Oil Dipstick (65A). Pour engine oil into the  
oil fill hole until the level of oil is even with the bottom edge of the oil fill hole (if you can-  
not see the oil through the oil fill hole, then the oil is too low and more oil must be added).  
Then, make sure to screw the Oil Dipstick back into its Dipstick Hole. (see Figure G.)  
5.  
After every 25 hours of use: Service the Air Cleaner Element (19A) and Air Cleaner  
Separator (20A). (see Figure h.)  
AIR clEANER sEpARAToR (20A)  
FIGURE h  
AIR clEANER covER (18A)  
AIR clEANER ElEMENT (19A)  
6.  
7.  
To do so, remove the Air Cleaner Cover (18A). Remove the Air Cleaner Element (19A).  
Immerse the Air Cleaner Element in a mild solvent and squeeze the Element several times  
to clean. Remove the Element from the solvent and squeeze thoroughly to dry. Then,  
squirt several drops of a light weight oil into the Element and squeeze the Element so oil  
reaches all parts of the Element. (see Figure h.)  
Use compressed air to clean the Air Element Separator (20A). Then replace the Air  
Element Separator, Air Cleaner Element, and Air Cleaner Cover (18A).  
(see Figure h.)  
8.  
9.  
Clean more often under dusty conditions or when airborne debris is present. Replace Air  
Cleaner parts if necessary. (see Figure h.)  
After every 100 hours of use: Clean and re-gap the Spark Plug (28A). (see Figure I.)  
0.028” - 0.031”  
spARK plUG (28A)  
FIGURE I  
10. To do so, use a 13/16” spark plug wrench (not included) to remove the Spark Plug.  
SKU 66603  
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11. Use a fine-grade sandpaper to clean off carbon build-up from the electrodes of the Spark  
Plug (28A). Clean with compressed air to remove residue. (see Figure I.)  
12. Measure the electrode gap with a suitable gauge. The gap should be 0.028” to 0.031”. If  
necessary, correct the gap by carefully bending the side of the electrode.  
(see Figure I.)  
13. Reinstall the Spark Plug (28A) carefully to avoid cross-threading. (see Figure I.)  
14. Daily: Inspect the Fuel Filter (32).  
15. To do so, remove the Fuel Tank Cap (34) from the Fuel Tank (31).  
(see Figure J.)  
16. If necessary, use compressed air to remove any dirt and debris from the Fuel Filter (32).  
Then replace the Fuel Filter and Fuel Tank Cap (34). (see Figure J.)  
when storing the Generator for extended periods: Before storing, drain all fuel out  
of the Engine’s Fuel Tank (31). If this is not followed, old fuel in the Fuel Tank may clog  
the Carburetor of the Engine and prevent it from starting until cleaned out. Then make  
sure to store the unit in a clean, dry, safe location out of reach of children and other  
unauthorized people.  
plEAsE READ ThE FollowING  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY  
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR  
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT  
HE OR SHE IS qUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS  
qUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR  
DISTRIBUTOR ExPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE  
UNDERTAKEN BY CERTIFIEDAND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER  
ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL  
PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION  
OF REPLACEMENT PARTS THERETO.  
SKU 66603  
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TRoUblEshooTING  
SKU 66603  
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pARTs lIsT - GENERAToR  
part  
1
Description  
Bolt w/Lock Washer (M6x12)  
Engine Switch  
Qty.  
part  
39  
40  
41  
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  
74  
75  
76  
77  
Description  
Qty.  
4
4
1
2
1
1
1
2
1
1
1
2
4
8
2
2
2
2
2
1
4
8
2
2
2
4
2
4
4
4
2
2
2
1
4
1
1
1
1
4
1
3
1
1
2
1
1
2
1
Rub Washer  
2
Bushing  
3
Circuit Breaker (30 Amp)  
Control Panel  
Fuel Valve  
4
Frame  
5
Circuit Breaker (20 Amp)  
Bolt (M5x12)  
Switch Box Cover  
Battery Guard Plate  
Battery (Not Included)  
Bolt w/Lock Washer (M6x12)  
Battery Bracket  
Battery Tray  
6
7
Voltmeter (0-150V)  
Voltmeter (0-300V)  
Outlet Socket (120V)  
Grounding Terminal  
7B  
8
9
Axle  
10  
Outlet Socket (120V)  
1
1
4
2
12  
1
1
1
7
1
2
1
1
1
4
4
1
4
1
1
1
1
1
1
1
1
2
1
4
4
Wheel  
10B Outlet Socket (240V/120V)  
Pin  
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  
Shock Absorber  
Bolt (M5x215)  
Lock Washer Nut (M8)  
Stator Cover  
Bolt (M8x20)  
Axle Bracket  
Shock Absorbing Foot  
Bolt (M8x25)  
Bracket  
Alternator Back Cover  
Automatic Voltage Regulator  
Bolt (M5x12)  
Nut (M8)  
Connection Board (Muffler)  
Bolt (M8x20)  
Bolt w/Lock Washer (M6x12)  
Handle  
Rectifier  
Bolt (M5x20)  
Cable Sheath  
Carbon Brush  
Bolt (M10x1.25x265)  
Bolt (M6x180)  
Bolt (M5x20)  
Bolt (M8x45)  
Pin (8x45)  
Bolt (M6x45)  
Link  
Connection Board  
Nut (M5)  
Washer (M6)  
Lock Washer  
Nut (M6)  
Stator  
Rotor  
Nut (M8)  
Cooling Fan  
Pin (2x20)  
Heat Insulation Board Assy.  
Fuel Tank  
12V DC Terminal  
Fuse (F10A250V)  
Washer  
Fuel Filter  
Seal Ring  
Positive Battery Cable (-)  
Negative Battery Cable (+)  
Engine Switch Key  
Carbon Canister  
Fuel Tank Cap  
Overflow Valve Pipe  
Overflow Valve  
Lock Washer Bolt (M6x30)  
Spacer  
NoTE: Some parts are listed and shown for illustration purposes only, and are not available individually  
as replacement parts.  
SKU 66603  
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AssEMblY DIAGRAM - GENERAToR  
SKU 66603  
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pARTs lIsT - ENGINE  
part  
1A  
2A  
3A  
4A  
5A  
6A  
7A  
8A  
9A  
Description  
Qty.  
part  
Description  
Qty.  
2
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
2
1
2
2
1
2
1
1
2
2
1
6
2
1
4
2
2
1
1
1
Muffler  
1
4
4
1
2
2
3
2
1
39A Starter Ratchet Spring  
40A Starter Rope  
41A Starter Handle  
42A Recoil Starter  
43A Spiral Spring  
44A Starter Wheel  
45A Circlip  
Cylinder Head Bolt  
Cylinder Head Cover Bolt  
Cylinder Head Cover  
Lock Nut  
Adjusting Screw  
Rocker Arm  
Rocker Arm Bolt  
46A Starter Ratchet  
47A Friction Plate Screw  
48A Cover  
Valve Push Rod Guide Board  
10A Valve Push Rod  
11A Cylinder Head  
2
1
1
1
1
1
1
4
1
1
1
1
1
2
1
1
1
2
1
2
2
2
2
1
1
1
1
1
1
49A Starter Pulley  
50A Cooling Fan  
12A Carburetor Shield  
13A Carburetor Packing  
14A Carburetor Assy.  
15A Air Cleaner Case  
16A Air Cleaner Seal  
17A Bolt (M6)  
51A Flywheel Magneto  
52A Cylinder Block  
53A Speed Control Lever  
54A Governor Arm  
55A Governor Spring  
56A Governor Support  
57A Bolt (M6x15)  
58A Oil Alert Nut  
18A Air Cleaner Cover  
19A Air Cleaner Element  
20A Air Cleaner Separator  
21A Choke Lever  
59A Plug (M10x15)  
60A Plug Washer  
61A Oil Alert  
22A Carburetor Packing (II)  
23A Stud Bolt (M6x109)  
24A Intake Valve  
62A Bolt (M6)  
63A Crankshaft  
25A Exhaust Valve  
64A Crankshaft Gear  
65A Oil Dipstick  
26A Cylinder Head Gasket  
27A Exhaust Pipe Stud  
28A Spark Plug  
66A Oil Dipstick Seal Ring  
68A Bolt (M8x35)  
69A Gear Case Packing  
70A Bearing  
29A Valve Guide  
30A Valve Spring  
31A Rocker Shaft Circlip  
32A Anti-Wear Valve Stem Protector  
33A Cylinder Head Cover Packing  
34A Governor Spring  
35A Bolt  
71A Camshaft Assy.  
72A Locating Pin  
73A Oil Seal  
74A Connecting Rod Bolt  
75A Connecting Rod Cap  
76A Connecting Rod  
77A Piston  
36A High Tension Line  
37A Ignition Coil  
38A Nut (Special 14mm)  
SKU 66603  
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pARTs lIsT - ENGINE (coNT.)  
part  
Description  
Qty.  
part  
Description  
Qty.  
78A Compression Ring (I)  
79A Compression Ring (II)  
80A Oil Scraper Ring  
81A Piston Pin  
1
1
1
1
82A Piston Pin Circlip  
1
1
1
1
83A Starter  
84A Gear  
85A Fuel Pipe  
NoTE: Some parts are listed and shown for illustration purposes only, and are not  
available individually as replacement parts.  
Record product’s serial Number here:  
Note: If product has no serial number, record month and year of purchase instead.  
SKU 66603  
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AssEMblY DIAGRAM -ENGINE  
SKU 66603  
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wIRING DIAGRAM  
SKU 66603  
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lIMITED 1 YEAR / 90 DAY wARRANTY  
Harbor Freight Tools Co. makes every effort to assure that its products meet high  
quality and durability standards, and warrants to the original purchaser that for a period  
of ninety days from date of purchase that the engine/motor, the belts (if so equipped),  
and the blades (if so equipped) are free of defects in materials and workmanship. Har-  
bor Freight Tools also warrants to the original purchaser, for a period of one year from  
date of purchase, that all other parts and components of the product are free from  
defects in materials and workmanship (90 days if used by a professional contractor or  
if used as rental equipment). This warranty does not apply to damage due directly or  
indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our  
facilities, normal wear and tear, or to lack of maintenance. We shall in no event be liable  
for death, injuries to persons or property, or for incidental, contingent, special or con-  
sequential damages arising from the use of our product. Some states do not allow the  
exclusion or limitation of incidental or consequential damages, so the above limitation  
of exclusion may not apply to you. THIS WARRANTY IS ExPRESSLY IN LIEU OF ALL  
OTHER WARRANTIES, ExPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF  
MERCHANTABILITY AND FITNESS.  
To take advantage of this warranty, the product or part must be returned to us with  
transportation charges prepaid. Proof of purchase date and an explanation of the com-  
plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-  
ther repair or replace the product at our election or we may elect to refund the purchase  
price if we cannot readily and quickly provide you with a replacement. We will return re-  
paired products at our expense, but if we determine there is no defect, or that the defect  
resulted from causes not within the scope of our warranty, then you must bear the cost  
of returning the product.  
This warranty gives you specific legal rights and you may also have other rights  
which vary from state to state.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
SKU 66603  
For technical questions, please call 1-800-444-3353.  
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EMIssIoN coNTRol sYsTEM wARRANTY  
United states Emission control Defects warranty statement  
The United States Environmental Protection Agency (herein EPA) and Harbor Freight Tools (herein HFT) are pleased to explain  
the emission control system warranty on your 1997 and later Small Off-Road Engine (herein engine). Within the United States, new  
off-road, spark-ignition engines certified for model year 1997 and later, must be designed, built and equipped to meet the stringent anti-  
smog standards set forth by the EPA. HFT must warrant the emission control system on your engine for the periods of time described  
below, provided there has been no abuse, neglect or improper maintenance of your engine.  
Your emission control system may include parts such as the carburetor or fuel-injection system, and the ignition system. Also  
included may be hoses, belts, connectors and other emission-related assemblies.  
Where a warrantable condition exists, HFT will repair your engine at no cost to you including diagnosis, parts and labor.  
Manufacturer’s warranty coverage  
The 1997 and later engines are warranted for two (2) years. If any emission-related part on your engine is defective, the part will  
be repaired or replaced by HFT.  
harbor Freight Tools Emission control Defects warranty coverage  
Engines are warranted for a period of two (2) years relative to emission control parts defects, subject to the provisions set forth  
below. If any emission related part on your engine is defective, the part will be repaired or replaced by HFT.  
owner’s warranty Responsibilities  
As the engine owner, you are responsible for the performance of the required maintenance listed in your Owner’s Manual. HFT  
recommends that you retain all receipts covering maintenance on your engine, but HFT cannot deny warranty solely for the lack  
of receipts or for your failure to ensure the performance of all scheduled maintenance.  
As the engine owner, you should, however, be aware that HFT may deny you warranty coverage if your engine or a part has failed  
due to abuse, neglect, improper maintenance, or unapproved modifications.  
You are responsible for shipping your engine to a HFT warranty station as soon as a problem exists. Contact the HFT Customer  
Service department at the number below to make shipping arrangements. The warranty repairs should be completed in a reason-  
able amount of time, not to exceed 30 days.  
If you have any questions regarding your warranty rights and responsibilities, you should contact the Harbor Freight Tools Cus-  
tomer Service Department at 1-800-444-3353.  
harbor Freight Tools Emission control Defects warranty provisions  
1. length of coverage  
HFT warrants to a first retail purchaser and each subsequent purchaser that the engine is free from defects in materials and  
workmanship that cause the failure of warranted parts for a period of two (2) years after the date of delivery to the first retail  
purchaser.  
2. No charge Repair or Replacement  
Repair or replacement of any warranted part will be performed at no charge to the owner if the work is performed through a warranty  
station authorized by HFT. For emissions warranty service, contact the HFT Customer Service Department at 1-800-444-3353.  
3. consequential Damages coverage  
Coverage under this warranty shall also extend to the failure of any engine components caused by the failure of any warranted  
part while it is still covered under this warranty.  
4. coverage Exclusions  
Warranty claims shall be filed in accordance with the provisions of the HFT warranty policy explained in the box at the top of the  
previous page. HFT shall not be liable for any loss of use of the engine, for any alternative usage, for any damage to goods, loss  
of time, or inconvenience. Warranty coverage shall also be excluded for any part which fails, malfunctions, or is damaged due to  
failure to follow the maintenance and operating instructions set forth in the Owner’s Manual including, but not limited to:  
a) Use of parts which are not authorized by HFT  
b) Improper installation, adjustment or repair of the engine or of any warranted part unless performed by an authorized war-  
ranty center  
c) Failure to follow recommendations on fuel use contained in the Owner’s Manual  
d) Improper or inadequate maintenance of any warranted parts  
e) Repairs performed outside of the authorized warranty service dealers  
f)  
Alterations by changing, adding to or removing parts from the engine.  
SKU 66603  
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EMIssIoN coNTRol sYsTEM wARRANTY (coNT.)  
5. service and Maintenance  
Component parts which are not scheduled for replacement as required maintenance or are scheduled only for regular inspection  
to the effect of “repair or replace as necessary” are warranted for the warranty period. Any warranted part which is scheduled  
for replacement as required maintenance is warranted for the period of time up to the first scheduled replacement point for that  
part. Any replacement part, provided it is equivalent in durability and performance, may be used in performance of maintenance  
or repairs. The owner is responsible for commissioning a qualified technician/mechanic to perform all required maintenance, as  
outlined in the Inspection, Cleaning, and Maintenance section in this manual.  
6. warranted parts  
1) Fuel Metering system  
i)  
Carburetor and its internal parts.  
ii) Fuel pump (if so equipped).  
iii) Cold start enrichment system.  
2) Air Induction system  
i)  
Intake pipe/manifold.  
ii) Air cleaner.  
3) Ignition system  
i)  
Spark plug.  
ii) Magneto ignition system.  
4) catalyst system (if so equipped)  
i)  
Exhaust pipe stud.  
ii) Muffler.  
iii) Catalytic converter (if so equipped).  
5) Miscellaneous Items Used in Above systems  
i)  
Vacuum, temperature and time sensitive valves and switches.  
ii) Hoses, belts, connectors, and assemblies.  
SKU 66603  
For technical questions, please call 1-800-444-3353.  
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