OPEratIOn anD PartS ManuaL
MODEL MQP20P
20kW StanDby gEnEratOr
(PErkInS 404D-22 DIESEL EngInE)
Revision #1 (11/28/11)
To find the latest revision of this
publication, visit our website at:
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
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nOtES
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 3
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tabLE Of COntEntS
Component Drawings
MQP20P Standby generator
Proposition 65 Warning ........................................... 2
Table Of Contents.................................................... 4
Parts Ordering Procedures...................................... 5
Safety Information .............................................. 6-11
Specifications ........................................................ 12
Dimensions............................................................ 13
Installation ........................................................ 14-15
General Information.......................................... 16-17
Major Components ................................................ 18
Basic Engine Components .................................... 19
Digital Controller Panel.......................................... 20
Connector Outlet Box And Main Circuit Breaker ... 21
Load Application/Generator Output....................... 22
Inspection/Setup............................................... 23-26
Startup.............................................................. 27-29
Protective Devices................................................. 30
Transporting........................................................... 31
Maintenance..................................................... 32-35
Troubleshooting (Generator).................................. 36
Troubleshooting (Engine)....................................... 37
Troubleshooting (Controller) ............................. 38-39
Troubleshooting (Voltage Regulator) ..................... 40
Maintenance Parts Locator.................................... 41
Generator Wiring Diagram (Single Phase) ....... 42-43
Generator Wiring Diagram (Three Phase)........ 44-45
Explanation Of Code In Remarks Column............. 46
Suggested Spare Parts ......................................... 47
Housing Assy.................................................... 48-49
Engine And Generator Mounting Assy.............. 50-51
Fuel Assy.......................................................... 52-53
Electrical Assy................................................... 54-55
Jacket Water Heater Assy................................. 56-57
Solenoid Assy..................................................... 5-59
Radiator Assy.................................................... 60-61
Air Filter Assy.................................................... 62-63
Engine Exhaust Assy........................................ 64-65
Engine Oil Assy................................................. 66-67
Control Panel Assy............................................ 68-69
Controller Assy.................................................. 70-71
Saddlebox Assy. ............................................... 72-73
Circuit Breaker Assy............................................ 74-5
Camlok Assy..................................................... 76-77
Terms And Conditions Of Sale — Parts ................ 78
NOTICE
Specifications and part numbers are subject to change
without notice.
page 4 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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PartS OrDErIng PrOCEDurES
Ordering parts has never been easier!
Choose from three easy options:
Effective:
January 1st, 2006
Best Deal!
Order via internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
I View Parts Diagrams
I Order Parts
I Print Specification Information
To obtain an MQ Account, contact your
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
to log in and save!
Order Parts
Note: Discounts Are Subject To Change
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (uS) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Note: Discounts Are Subject To Change
Domestic (uS) Dealers Call:
Order via phone:
1-800-427-1244
Non-Dealer Customers:
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
When ordering parts, please supply:
Ì
Dealer account Number
Ì
Specify preferred Method of Shipment:
Ì
Ì
Ì
Ì
Ì
Dealer Name and address
ꢀ UPS/Fed Ex
ꢀ DHL
ꢀ Truck
I
I
Priority One
Ground
Shipping address (if different than billing address)
Return Fax Number
I Next Day
Second/Third Day
applicable Model Number
I
Quantity, part Number and Description of each part
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
We aCCepT all MaJOR CReDiT CaRDS!
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 5
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SafEty InfOrMatIOn
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
SaFeTY MeSSageS
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DaNgeR, WaRNiNg, CauTiON or NOTiCe.
SaFeTY SYMBOlS
DaNgeR
Indicates a hazardous situation which, if not avoided,
Will result in DeaTH or SeRiOuS iNJuRY.
WaRNiNg
Indicates a hazardous situation which, if not avoided,
COulD result in DeaTH or SeRiOuS iNJuRY.
CauTiON
Indicates a hazardous situation which, if not avoided,
COulD result in MiNOR or MODeRaTe iNJuRY.
NOTICE
Addresses practices not related to personal injury.
page 6 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SafEty InfOrMatIOn
„ NeveR use accessories or attachments that are not
recommended by MQ Power for this equipment.Damage
to the equipment and/or injury to user may result.
geNeRal SaFeTY
CauTiON
„ NeveR operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
„ alWaYS know the location of the nearest
fire extinguisher.
„ alWaYS know the location of the nearest
first aid kit.
„ alWaYS know the location of the nearest
phone or keep a phone on the job site. Also, know the
phone numbers of the nearest ambulance, doctor and
fire department. This information will be invaluable in
the case of an emergency.
„ NeveR operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
„ NeveR operate this equipment under the influence of
drugs or alcohol.
geNeRaTOR SaFeTY
DaNgeR
„ NeveRoperatetheequipmentinanexplosive
atmosphereornearcombustiblematerials.An
explosion or fire could result causing severe
bodily harm or even death.
„ alWaYS check the equipment for loosened threads or
bolts before starting.
„ DO NOT use the equipment for any purpose other than
its intended purposes or applications.
WaRNiNg
„ NeveR disconnect any emergency or safety devices.
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death.Disconnection of any of these
devices will void all warranties.
NOTICE
„ This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
„ Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
CauTiON
„ Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
„ NeveR lubricate components or attempt service on a
running machine.
NOTICE
„ alWaYS ensure generator is on level ground before use.
„ alWaYS keep the machine in proper running condition.
„ Fix damage to machine and replace any broken parts
immediately.
„ alWaYS store equipment properly when it is not being
used.Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 7
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SafEty InfOrMatIOn
eNgiNe SaFeTY
NOTICE
DaNgeR
„ NeveR run engine without an air filter or with a dirty air
filter.Severe engine damage may occur.Service air filter
frequently to prevent engine malfunction.
„ The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
„ NeveR tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
„ The engine of this equipment
requires an adequate free
flow of cooling air. NeveR
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
„ Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied.When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
WaRNiNg
„ DO NOT place hands or fingers inside engine
compartment when engine is running.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
„ NeveR operate the engine with heat shields or
guards removed.
„ Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition.It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
„ DO NOT remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
„ DO NOT remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
„ State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels.A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
„ DO NOT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CauTiON
„ NeveR touch the hot exhaust manifold,
muffler or cylinder.Allow these parts to cool
before servicing equipment.
page 8 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SafEty InfOrMatIOn
„ Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
Fuel SaFeTY
DaNgeR
„ DO NOT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
„ alWaYS inspect the hitch and coupling for wear. NeveR
tow a trailer with defective hitches, couplings, chains, etc.
„ Check the tire air pressure on both towing vehicle and
trailer. Trailer tires should be inflated to 50 psi cold.
Also check the tire tread wear on both vehicles.
„ alWaYS refuel in a well-ventilated area, away from
sparks and open flames.
„ alWaYS use extreme caution when working with
flammable liquids.
„ alWaYS make sure the trailer is equipped with a safety
chain.
„ DO NOT fill the fuel tank while the engine is running
or hot.
„ alWaYS properly attach trailer’s safety chains to towing
vehicle.
„ DO NOT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
„ alWaYS make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
„ Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
„ DOT Requirements include the following:
• Connect and test electric brake operation.
„ NeveR use fuel as a cleaning agent.
• Secure portable power cables in cable tray with tie
wraps.
„ DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
„ The maximum speed for highway towing is55 MpHunless
posted otherwise.Recommended off-road towing is not to
exceed 15 MpH or less depending on type of terrain.
TOWiNg SaFeTY
„ Avoid sudden stops and starts.This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
CauTiON
„ Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
SafetyTowing Regulations, before towing
your generator.
„ Avoid sharp turns to prevent rolling.
„ Trailer should be adjusted to a level position at all times
when towing.
„ Raise and lock trailer wheel stand in up position when
towing.
„ Refer to MQ Power trailer manual for additional safety
information.
„ Place chock blocks underneath wheel to prevent rolling
while parked.
„ In order to reduce the possibility of an accident while
transporting the generator on public roads, alWaYS
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
„ Place support blocks underneath the trailer’s bumper
to prevent tipping while parked.
„ Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
„ alWaYS shutdown engine before transporting
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 9
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SafEty InfOrMatIOn
„ Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
eleCTRiCal SaFeTY
DaNgeR
„ DO NOT touch output terminals during
operation. Contact with output terminals
duringoperationcancauseelectrocution,
electrical shock or burn.
NOTICE
„ alWaYS make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
„ The electrical voltage required to
operate the generator can cause severe
grounding Safety
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers OFF
before performing maintenance on the generator or
making contact with output terminals.
DaNgeR
„ alWaYS make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator. Severe injury or death by
electrocution can result from operating an ungrounded
generator.
„ NeveR insert any objects into the output
receptacles during operation. This is
extremely dangerous.The possibility exists
of electrical shock, electrocution or
death.
„ NeveR use gas piping as an electrical ground.
„ Backfeed to a utility system can cause
electrocution and/or property damage.
NeveR connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
injury or even death.
power Cord/Cable Safety
DaNgeR
„ NeveR let power cords or cables lay in water.
„ NeveR stand in water while AC power from the
generator is being transferred to a load.
„ NeveR use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
„ NeveR grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
electrocution or death.
page 10 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SafEty InfOrMatIOn
BaTTeRY SaFeTY
eNviRONMeNTal SaFeTY
DaNgeR
NOTICE
„ DO NOT drop the battery. There is a possibility that the
battery will explode.
„ Dispose of hazardous waste properly.
Examples of potentially hazardous waste
are used motor oil, fuel and fuel filters.
„ DO NOT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
„ DO NOT use food or plastic containers to
dispose of hazardous waste.
„ DO NOT pour waste, oil or fuel directly onto the ground,
down a drain or into any water source.
WaRNiNg
„ alWaYSwearsafetyglasseswhenhandling
the battery to avoid eye irritation.The battery
contains acids that can cause injury to the
eyes and skin.
„ Use well-insulated gloves when picking up the battery.
„ alWaYS keep the battery charged. If the battery is not
charged, combustible gas will build up.
„ alWaYS recharge the battery in a well-ventilated
environmenttoavoidtheriskofadangerousconcentration
of combustible gasses.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
„ If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CauTiON
„ alWaYS disconnect the NegaTive battery terminal
before performing service on the generator.
„ alWaYS keep battery cables in good working condition.
Repair or replace all worn cables.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 11
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SPECIfICatIOnS
Table 1. generator Specifications
Model
Type
MQP20P
Rotating field, 4-pole,
brushless, shunt excitation design
armature Connection
phase
High Voltage Series
High Voltage Series (WYE)
Three
Single
20 kW (25 kVA)
17 kW (21.25 kVA)
240 V
Standby Output
prime Output
voltage
20 kW (25 kVA)
17 kW (21.25 kVA)
277Y/480V
power Factor
Frequency
1.0
0.8
60 Hz
1800 rpm
Single Phase, 60 Hz
Table 2. engine Specifications
Speed
aux. aC power
Model
Type
Perkins 404D-22 Tier 4
4 cycle, indirect injection
4 cylinders In -Line
No. of Cylinders
Bore x Stroke
Displacement
Rated Output
Starting
3.30 in. x 3.93 in. (84 mm x 100 mm)
135 cu. in. (2.2 liters)
32.6 HP at 1800 rpm
Electric
Coolant Capacity
lube Oil Capacity
Fuel Type
0.9 gal. (3.6 liters)
2.8 gal. (10.6 liters)
#2 Diesel Fuel
Fuel Tank Capacity
126 gal. (475 liters)
1.5 gal. (5.7 L)/hr at full load
0.8 gal. (3.0 L)/hr at 1/2 load
1.2 gal. (4.5 L)/hr at 3/4 load
Fuel Consumption
Battery
0.7 gal. (2.6 L)/hr at 1/4 load
12 VDC
page 12 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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DIMEnSIOnS
A
M
J
L
K
H
C
D
G
B
E
F
Figure 1. Dimensions
Table 3. Dimensions
Reference
letter
Dimension in. (mm)
Reference letter
Dimension in. (mm)
A
B
C
D
E
74 in. (1879.6 mm.)
32 in. (812.8 mm.)
G
H
J
50.19 in. (1274.8 mm.)
35.31 in. (896.9 mm.)
17.5 in. (444.5 mm.)
15 in. (381 mm.)
77 in. (1955.8 mm.)
73.06 in. (1855.7 mm.)
62 in. (1574.8 mm.)
K
L
54.06 in. (1373.1 mm.)
F
82.5 in. (2095.5 mm.)
M
35.5 in. (901.7 mm.)
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 13
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InStaLLatIOn
GENERATOR
GROUND LUG
GROUND ROD
FOR EARTH
GROUND
NOTE: GROUND LUG
MUST BE INSTALLED BY USER
CONNECT TO
BUILDING
GROUND
GROUND CABLE
8 FT. MINIMUM
REFERENCE
NEC 250-52(C)
Figure 2. Typical Generator Grounding Application
page 14 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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InStaLLatIOn
OuTDOOR iNSTallaTiON
geNeRaTOR gROuNDiNg
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good eaRTH
ground.
Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guidelines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
The installation site must be relatively free from moisture
and dust. All electrical equipment should be protected
from excessive moisture. Failure to do so will result in
deterioration of the insulation and will result in short circuits
and grounding.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
a. Copper — 8 AWG (5.3 mm2)
b. Aluminum — 6 AWG (8.4 mm2)
CauTiON
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
Pay close attention to ventilation when operating the
generator inside tunnels and caves.The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
iNDOOR iNSTallaTiON
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.
NOTICE
When connecting the generator to any building electrical
system, alWaYS consult a licensed electrician.
MOuNTiNg
The generator must be mounted on a solid foundation (such
as concrete) and set firmly on the foundation to isolate
vibration of the generator when it is running.The generator
must sit at least 6 inches above the floor or grade level (in
accordance to NFPA 110, Chapter 5-4.1).
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 15
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gEnEraL InfOrMatIOn
„ Switches And Operating Controls
geNeRaTOR
• Run / Off / Auto / Load Test Buttons
• Decrement / Increment / Previous
(Exit) /Next (Enter) Program Buttons
• Emergency Stop Button
This generator (Figure 3) is a high-quality, reliable, backup
power source used by telecommunications companies to
keep their networks connected.
CONTROl paNel (MEC 20™ Digital Controller)
• Audible Alarm Horn – 80 dB(A) at 2 ft.
• Alarm Horn Silence Button
• Lamp Test Button
„ AC Metering Display
• Voltage/Amperage / Frequency
• Generator Phase Voltage / Current
• Generator Frequency
• Fault Reset Function
• RJ45 Remote Communications,
External Expansion Module Ports
„ Timer Countdown Display
„ Engine Information Display
• Engine Temperature / Oil Pressure (psi)
• Battery Voltage (DC) / Tachometer
• Hourmeter
• Engine Start Delay
• Oil Bypass
• Overcrank
„ Minor Fault Warning Display
• Cycle Crank
• Switch Not In Auto
• Low Fuel Level
• Starter Re-engage Delay
• Bypass Delay
• Low Oil Pressure Alarm
• Low Engine Temperature
• High Engine Temperature Alarm
• Low Battery Voltage
• High Battery Voltage
• Weak Battery Condition
• Battery Charger Input Fail
• Undervoltage
„ Control LED Indicators
• Switch Position (Run,Off,Auto,Test)
• Common Alarm (Minor Fault)
• Common Shutdown (Major Fault)
• Generator Ready (When in Auto)
• Speed Signal
• Emergency Stop
„ Diagnostic LED Indicators:
• Over / Underfrequency
• Overcurrent
• Run Output Energized
• Crank Output Energized
„ Major Fault Shutdown Display
• Remote Start Signal Initiated
• Common Fail Output Energized
• Watchdog - CPU Running
• Programmable Output Contacts
• Overvoltage
• Emergency Stop
• Loss Of Speed
• Overcrank
CaMlOk OuTleT BOx paNel
• Overspeed
• Low Oil Pressure
• High Engine Temperature
• Low Coolant Level
• Spare Programmable Digital Faults
The“CamlokPanel”isprovidedwiththefollowingreceptacles:
„ Ground (GRND.) - Green
„ Neutral (NEUT.) - White
„ LEG 1 - Black
„ LEG 2 - Red
„ LEG 3 - Blue
page 16 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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gEnEraL InfOrMatIOn
pRiNCiple OF OpeRaTiON
vOlTage RegulaTiON
This generator is a brushless, self-excited, externally
voltage regulated, synchronous AC generator. The
generator is made up of six major components:main stator
(armature), main rotor (field), exciter stator (field), exciter
rotor (armature), rectifier assembly, and voltage regulator.
In the standard configuration (shunt excited), the automatic
voltage regulator receives both its input power and voltage
sensing from the generator's output terminals.The regulator
automatically monitors the generator's output voltage
against an internal reference set point and provides the
necessary DC output voltage to the exciter field required
to maintain constant generator terminal voltage. The
generator's terminal voltage is changed by adjusting the
regulator's reference set point.
The generator's exciter consists of a stationary field and
a rotating armature. The stationary field (exciter stator)
is designed to be the primary source of the generator's
residual magnetism. This residual magnetism allows the
exciter rotor (armature) to produce AC voltage even when
the exciter stator (field) is not powered. This AC voltage
is rectified to DC by the rotating rectifier assembly and
fed directly to the main rotor (field). As the generator
shaft continues to rotate, the main rotor (field) induces a
voltage into the generator's main stator (armature).At rated
speed, the main stator's voltage produced by the residual
magnetism of the exciter allows the automatic voltage
regulator to function.
eNgiNe
This standby generator incorporates a Perkins 404D-22
Tier 4 diesel engine.This engine is designed to meet every
performance requirement for the generator.Refer toTable 2
for engine specifications.
In keeping with Multiquip’s policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
The regulator provides voltage to the exciter resulting in
a build-up of generator terminal voltage. This system of
using residual magnetism eliminates the need for a special
field flashing circuit in the regulator. After the generator
has established the initial residual voltage, the regulator
provides a controlled DC field voltage to the exciter stator
resulting in a controlled generator terminal voltage.
eleCTRONiC gOveRNOR SYSTeM
The electronic governor system controls the RPMs of the
engine.When the engine demand increases or decreases,
the governor system regulates the frequency variation to
0.25%.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 17
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MajOr COMPOnEntS
2
1
12
11
14
6
5
9
10
8
3
7
13
4
Figure 3. Major Components
Table 4. generator Major Components
iTeM NO.
DeSCRipTiON
Housing Assembly
1
2
Exhaust Rain Cap
3
Camlok Connector Box Assembly
Fuel System Sub Base Assembly
Door Assembly
4
5
6
Generator Assembly
Circuit Breaker Assembly
Battery Assembly
7
8
9
Jacket Water Heater Assembly
Battery Charger Assembly
Starter Solenoid
10
11
12
13
14
Engine Assembly
Controller Assembly
Glow Plug Relay
page 18 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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baSIC EngInE COMPOnEntS
6
1
5
4
12
2
11
7
10
3
9
8
Figure 4. Basic Engine Components
Table 5. Basic engine Components
iTeM NO.
DeSCRipTiON
1
2
Radiator
Alternator
Starter
3
4
Air Filter
5
Oil Filler Cap
Muffler
6
7
Fuel Filter
8
Oil Drain Plug
Oil Filter
9
10
11
12
Oil Dipstick
Governor Actuator
Fuel Injection Pump
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 19
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DIgItaL COntrOLLEr PanEL
4
1
3
13
11
Microprocessor Engine Controller
MEC 20
Vavg Aavg Freq
600
508
60.0
ALARM
READY
SILENCE
LAMP TEST
RESET
SHUTDOWN
SPEED SIGNAL
EXIT
ENTER
DECREMENT
INCREMENT
12
5
14
EMERGENCY
2
6
STOP
LOAD
TEST
RUN
OFF
AUTO
10
9
8
FREQUENCY
ADJUST
VOLTAGE
ADJUST
7
15
16
Figure 5. Digital Controller Components
1. liquid Crystal Display — Displays voltage, amperage,
frequency,engine information, fault warnings, and other
generator and engine information.
7. OFF pushbutton and leD — Press button to initiate
a stop signal to the generator.The LED will light when
in OFF mode.
2. exiT pushbutton — Press button to scroll backwards
through the status menus or programming prompts.
Press and hold for approximately 2 seconds to exit
programming menu when in the programming mode.
8. auTO pushbutton and leD — Press button to initiate
automatic operation of the generator.The LED will light
when in AUTO mode.
9. lOaDTeST pushbutton and leD — Press button to
initiate load test of the generator when connected to
an associated transfer switch.The LED will light when
in LOAD TEST mode.
3. DeCReMeNT pushbutton — Press button to change
a programming value while in the programming
mode. Press and hold this button to decrease value
continuously and release when desired value is
displayed. NOTE: The longer the button is held down,
the faster the value will decrease.
10. eMeRgeNCY STOp pushbutton and leD — Press
button to initiate an emergency stop signal to the
generator.
4. iNCReMeNT pushbutton — Press button to change
a programming value while in the programming mode
or to select a desired programming menu loop. Press
and hold this button to increase value continuously and
release when desired value is displayed. NOTE: The
longer the button is held down, the faster the value
will increase.
11. ReaDY leD — Lights when the generator is set for
automatic operation and no shutdown or alarm faults
have been activated.
12. SpeeD SigNal leD — Lights when the engine speed
signal is detected.
13. alaRM leD — Lights when any pre-programmed
alarm fault has been activated.
5. eNTeR pushbutton — Press button to scroll through
the status menus or programming prompts. This
button is used to enter a programming mode as well
as accepting changed programming values. NOTE:
The longer the button is held down, the faster the next
menu prompt will appear.
14. SHuTDOWN leD — Flashes when any pre-
programmed shutdown fault has been activated.
15. FReQueNCY aDJuST —This screwdriver adjustable
potentiometer is used to fine tune the roll-off frequency
from 54 to 61 Hz.
6. RuN pushbutton and leD — Press button to initiate
a manual start signal to the generator. The LED will
light when in RUN mode.
16. vOlTage aDJuST — This screwdriver adjustable
potentiometer is used to fine tune the generator output
voltage.
page 20 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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COnnECtOr OutLEt bOx anD MaIn CIrCuIt brEakEr
OuTleT CONNeCTORS
MaiN CiRCuiT BReakeR
The Camlok outlet box has the following connectors
„ Ground (GRND.)
The generator is equipped with a three-pole, 100 or 30
amp, (single/three phase) circuit breaker to protect the
generator from overload.
„ Neutral (NEUT.)
See Figure 6 for connections.
„ LEG 1, LEG 2, LEG 3 (3-phase only)
Neutral
(White)
Ground
Ground
(Green)
Leg 1
(Black)
Green
Camlok
Panel
Generator
White
Green
Green
Neutral
White
L1
L2
White
Black
Red
Leg 2
(Red)
L1
L2
Circuit
Breaker
100A
Black
Black
Red
Single Phase
Red
Neutral
(White)
Ground
Ground
(Green)
Leg 1
(Black)
Leg 2
(Red)
Green
Camlok
Panel
Generator
White
Green
Green
Neutral
Black
White
L1
L2
White
L3
Red
Black
Red
Leg 3
(Blue)
L1
L2
Blue
Circuit
L3
Black
Breaker
30A
Blue
Three Phase
Blue
Red
Figure 6. Camlok Box and Circuit Breaker Connections
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 21
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LOaD aPPLICatIOn/gEnEratOr OutPut
SiNgle pHaSe lOaD
NOTICE
Always be sure to check the nameplate on the generator
and equipment to insure the wattage, amperage, frequency,
and voltage requirements are satisfactorily supplied by the
generator for operating the equipment.
Motors and motor-driven equipment draw much greater
current for starting than during operation.
An inadequate size connecting cable which cannot carry
the required load can cause a voltage drop which can burn
out the appliance or tool and overheat the cable. Refer to
Table 7 to select the correct cable size.
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130—150% more wattage than the rating on the nameplate,
as the wattage is influenced by the efficiency, power factor
and starting system of the equipment.
„ When connecting a resistance load such as an
incandescent lamp or electric heater, a capacity of up to
the generator’s rated output (kW) can be used.
.
NOTICE
„ When connecting a fluorescent or mercury lamp, a
capacity of up to the generator's rated output (kW)
multiplied by 0.6 can be used.
If wattage is not given on the equipment’s name plate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
„ When connecting an electric drill or other power tools,
pay close attention to the required starting current
capacity.
WATTS = VOLTAGE x AMPERAGE
When connecting ordinary power tools, a capacity of up to
the generator’s rated output (kW) multiplied by 0.8 can be
used.
The power factor of this generator is 1.0.SeeTable 6 below
when connecting loads.
Table 6. power Factor By load
DaNgeR
Type of load
power Factor
Before connecting this generator to any building’s
electrical system, a licensed electrician must install
a transfer switch. Serious damage to the building’s
electrical system may occur without this transfer switch.
Single-phase induction motors
0.4-0.75
Electric heaters, incandescent lamps
Fluorescent lamps, mercury lamps
1.0
0.4-0.9
Electronic devices, communication
equipment
1.0
0.8
generator amperage
Common power tools
Table 8 shows the maximum amps the generator can
provide. DO NOT exceed the maximum amps as listed.
Table 7. Cable Selection (60 Hz, Single phase Operation)
Table 8. generator Maximum amps
load in Watts
Maximum allowable Cable length
Current
in
amperes
at 100
volts
at 200
volts
Rated voltage
1Ø 120 Volt
1Ø 240 Volt
Maximum amps
83 X 2 amps (4 wire)
83 amps (4 wire)
#10 Wire #12 Wire #14 Wire #16 Wire
2.5
5
300
600
1000 ft.
500 ft.
350 ft.
250 ft.
150 ft.
125 ft.
600 ft.
300 ft.
200 ft.
150 ft.
100 ft.
75 ft.
375 ft.
200 ft.
125 ft.
100 ft.
65 ft.
250 ft.
125 ft.
100 ft.
600
1200
1800
2400
3600
4800
7.5
10
15
20
900
1200
1800
2400
50 ft.
CAUTION: Equipment damage can result from low voltage
page 22 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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InSPECtIOn/SEtuP
MaiN CiRCuiT BReakeR
Fuel CHeCk
DaNgeR
The generator is equipped with a 3-pole, 100-amp circuit
breaker to protect it from overload.Make sure that the circuit
breaker is in the OFF position prior to starting the engine.
Fuel spillage on a hot engine can cause
a fire or explosion.If fuel spillage occurs,
wipe up the spilled fuel completely to
prevent fire hazards. NeveR smoke
around or near the generator.
luBRiCaTiON Oil
Fill the engine crankcase with lubricating oil through the
filler hole, but DO NOT overfill. Make sure the generator
is level and verify that the oil level is maintained between
the two notches (Figure 7) on the dipstick. See Table 9 for
proper selection of engine oil.
Refilling the Fuel System
CauTiON
ONlY properly trained personnel who have read
and understood this section should refill the fuel tank
system.
Figure 7. Engine Oil Dipstick
This generator has a fuel tank located in the sub base
assembly frame (Figure 3). alWaYS fill the fuel tank with
clean fresh #2 diesel fuel. DO NOT fill the fuel tank beyond
its capacity.
When checking the engine oil, be sure to check if the oil is
clean. If the oil is not clean, drain the oil by removing the
oil drain plug, and refill with the specified amount of oil as
outlined in the perkins engine Owner’s Manual.Oil should
be warm before draining.
Pay attention to the fuel tank capacity when replenishing
fuel. The fuel tank cap must be closed tightly after filling.
Handle fuel in a safe container. If the container does
not have a spout, use a funnel. Wipe up any spilled fuel
immediately.
Other types of motor oils may be substituted if they meet
the following requirements:
„ API Service Classification CC/SC
„ API Service Classification CC/SD
„ API Service Classification CC/SE
„ API Service Classification CC/SF
Refueling procedure:
WaRNiNg
Diesel fuel and its vapors are dangerous
to your health and the surrounding
environment. Avoid skin contact and/or
inhaling fumes.
Table 9. Recommended Motor Oil
CauTiON
alWaYS make sure generator is on firm level ground
before refueling to prevent spilling and maximize the
amount of fuel that can be pumped into the tank.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 23
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InSPECtIOn/SEtuP
1. Place the generator level with the ground.Failure to do
so will cause fuel to spill from the tank before reaching
full capacity (Figure 8).
3. Monitor the fuel gauge while filling fuel tank.Stop filling
when the fuel gauge indicates full (Figure 10).DO NOT
wait for fuel to rise in filler neck.
DO NOT fill on
unlevel ground
1/2
!
E
F
!
=
Level Ground
Level Ground
Figure 8. Only Fill on Level Ground
Figure 10. Full Fuel Tank
NOTICE
CauTiON
ONlY use #2 diesel fuel when refueling.
DO NOT OveRFill fuel system. Leave room for fuel
expansion. Fuel expands when heated (Figure 11).
2. Unlatch and remove the cabinet door of the generator.
Remove fuel cap and fill tank (Figure 9).
Fuel EXPANDS
when heated
1/2
DIESEL
FUEL
E
F
Figure 9. Fueling the Generator
Figure 11. Fuel Expansion
page 24 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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InSPECtIOn/SEtuP
COOlaNT (aNTiFReeze/SuMMeR COOlaNT)
FaN BelT TeNSiON
perkins recommends antifreeze/summer coolant, for use in
their engines, which can be purchased in concentrate (and
mixed with 50% demineralized water) or pre-diluted. See the
perkins engine Owner’s Manual for further details.
A slack fan belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the fan belt for
damage and wear and adjust it in accordance with the
perkins engine Owner’s Manual.
The fan belt tension is proper if the fan belt bends 10 to
15 mm (Figure 12) when depressed with the thumb as
shown below.
WaRNiNg
If adding coolant/antifreeze mix to the
radiator, do not remove the radiator cap
until the unit has completely cooled. The
possibility of hot coolant exists which can
cause severe burns.
The engine coolant capacity is 3.8 quarts (3.6 liters).
OpeRaTiON iN FReeziNg WeaTHeR
Figure 12. Fan Belt Tension
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 10) has been added.
CauTiON
NeveR place hands near the belts or fan
while the generator is running.
Table 10. anti-Freeze OperatingTemperatures
Vol %
Anti-
Freeze
Freezing Point
Boiling Point
°C
°F
°C
°F
BaTTeRY
50
-37
-34
108
226
This unit is of negative ground.DO NOT connect in reverse.
Always maintain battery fluid level between the specified
marks. DO NOT over fill. Battery life will be shortened if
the fluid level is not properly maintained. Add only distilled
water when replenishment is necessary.
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
Check to see whether the battery cables are loose. Poor
contact may result in poor starting or malfunction. always
keep the terminals firmly tightened.Coat the terminals with
an approved battery terminal treatment compound.Replace
battery with only recommended type battery.
CleaNiNg THe RaDiaTOR
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific gravity
should fall to 1.245 or lower, the battery is dead and needs
to be recharged or replaced.
aiR CleaNeR
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
Periodic cleaning/replacement is necessary. Inspect it in
accordance with the perkins engine Owner’s Manual.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 25
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InSPECtIOn/SEtuP
Battery Cable installation
alTeRNaTOR
alWaYS make sure that the battery cables (Figure 13) are
properly connected to the battery terminals as shown below.
The polarity of the alternator is negative grounding type.
When an inverted circuit connection takes place, the circuit
will short instantaneously resulting in alternator failure.
CauTiON
DO NOT put water directly on the alternator. Water in the
alternator can cause corrosion and damage.
alWaYS disconnect the negative terminal FiRST and
reconnect negative terminal laST.
WiRiNg
Inspect the generator for bad, worn electrical wiring or
connections. If any wiring or connections are exposed
(insulation missing), replace wiring immediately.
pipiNg aND HOSe CONNeCTiON
Inspect all piping, oil hose, and fuel hose connections for
wear and tightness. Tighten all hose clamps and check
hoses for leaks.
If any hose (fuel or oil) lines are defective, replace them
immediately.
Figure 13. Battery Connections
When connecting the battery do the following:
1. Place a small amount of battery terminal treatment
compound around both battery terminals. This will
ensure a good connection and will help prevent
corrosion around the battery terminals.
2. Connect the red cable to the positive terminal of the
battery and the black cable to the negative terminal
of the battery.
.
NOTICE
If the battery cable is connected incorrectly, electrical
damage to the generator will occur. Pay close attention
to the polarity when connecting the battery.
CauTiON
Inadequate battery connections may cause poor
starting of the generator, and create other malfunctions.
page 26 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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StartuP
3. Listen for any abnormal noises. If any abnormalities
exist, shut down the engine and correct the problem.
BeFORe STaRTiNg
CauTiON
4. Using the controller display, verify that the no-load
frequency and speed is approximately 62.5 Hz
(1875 rpm).
The engine’s exhaust contains harmful emissions.
alWaYS have adequate ventilation when operating.
Direct exhaust away from nearby personnel.
5. Place the main circuit breaker (Figure 16) to the ON
position. Voltage is now available at the receptacles.
WaRNiNg
NeveR manually start the engine with the main circuit
breaker in the ON position.
1. Place the main circuit breaker (Figure 14) in the OFF
position prior to starting the engine.
Figure 16. Main Circuit Breaker (ON)
STaRTiNg (auTO MODe)
DaNgeR
Before connecting the generator to a
building’s electrical system, a licensed
electrician must install a transfer
switch. Serious damage to the building’s
electrical system may occur without a
transfer switch.
Figure 14. Main Circuit Breaker (OFF)
2. Connect the load to the receptacles on the Camlok
outlet box. See Figure 6.
3. Tighten terminal nuts securely to prevent load wires
from slipping out.
CauTiON
STaRTiNg (MaNual)
When connecting the generator to an automatic transfer
switch, alWaYS have power applied to the generator’s
internal battery charger.This will ensure that the engine
will not fail due to a dead battery.
1. Press the RuN button (Figure 15) on the controller to
start the engine.
WaRNiNg
When running the generator in the auTO mode, the
generator can start up at any time without warning.
NeveR attempt to perform any maintenance when the
generator is in the auTO mode.
Figure 15. Run Button
NOTICE
2. Once the engine starts, let the engine run for 1-2
minutes. At temperatures below freezing, this time
period must be extended to 2-4 minutes.
When the generator is placed in the auTO mode, the
engine glow plugs will be warmed and the engine will
start automatically.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 27
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StartuP
1. Press the auTO button (Figure 17) on the digital
controller to place the generator in the auto mode.This
mode allows the controller to monitor the remote-start
contacts.
NORMal SHuTDOWN pROCeDuRe
To shutdown the generator, use the following procedure:
WaRNiNg
Closure of the remote-start contacts will begin engine
cranking.When the contacts are opened, cranking will
stop or if the engine is running, engine will stop.
NeveR stop the engine suddenly except in an
emergency.
1. Place the main circuit breaker (Figure 19) in the OFF
position.
Figure 17. Auto Button
NOTICE
If the generator is to be connected to a building's
AC power source via an automatic transfer switch
(ATS), press the auTO button (Figure 17) to place the
generator in auto mode.
Figure 19. Main Circuit Breaker (OFF)
In this position, should an outage occur, the automatic
transferswitch(ATS)willstartthegeneratorautomatically
through the generator remote-start contacts connected
to the automatic transfer switch start contacts.
2. Let the engine cool by running it at low speed for 3-5
minutes with no load applied.
3. Press the OFF button (Figure 20) on the digital
controller to shutdown the engine.
Refer to your ATS installation manual on how to connect
the ATS to the generator remote-start contacts.
ClOSiNg THe eNClOSuRe DOOR
1. Close the engine enclosure door once the generator
has started or set to auto start (Figure 18).
Figure 20. OFF Button
eMeRgeNCY SHuTDOWN pROCeDuRe
1. Place the main circuit breaker (Figure 19) in the OFF
position.
CORRECT
INCORRECT
2. Press the OFF button (Figure 20) on the digital
controller to shutdown the engine.
Figure 18. Engine Enclosure Door
2. If access to the controls or other components is
necessary while the engine is running, make sure the
door is not left open for an extended period of time.
page 28 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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StartuP
JaCkeTWaTeRHeaTeRaNDiNTeRNalBaTTeRY
CHaRgeR
Jacket
Water
Heater
This generator is equipped with a jacket water heater and
an internal battery charger.They are provided with electric
cords to connect to a commercial power source.
These units will ONlY function when commercial power has
been supplied to them (Figure 21). When using extension
cords, refer to Table 7 for the correct size and length.
The battery charger should always be connected to a
commercial power source to ensure that the battery does
not get discharged.
Battery
Charger
When using the generator in hot climates there is no
need to apply power to jacket water heater. However, if the
generator will be used in cold climates, it is best to apply
power to the jacket water heater at all times.
Connect to external
120 VAC power source
Figure 21. Battery Charger and Jacket Water
Heater Power Connections
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 29
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PrOtECtIvE DEvICES
After automatic shutdown, always inspect the generator
and eliminate any problems that might have caused the
shutdown before attempting to restart the generator.
pROTeCTive DeviCeS
Protection devices and emergency stop devices are
provided for protection of the generator against trouble
during operation. The alarm LED on the digital controller
lights or flashes when a fault is detected.
When ready to restart the generator, make sure all circuit
breakers are OFF.Also check and make sure that the OFF
button on the Digital Controller has been pressed to clear
the system and that the OFF LED on the Digital Controller
is ReD. Restart the generator as outlined in the Startup
section of this manual.
When a major fault is detected, such as low oil pressure,
high water temperature, and overspeed, the engine
automatically shuts down. Check the display for the fault
and correct the problem.
Refer to the MEC20 Microprocessor Engine/Generator
Controller Manual for detailed information of faults and
display information.
For minor faults, the engine will continue working. Stop the
engine and remedy the cause of the problem.
Before inspecting or troubleshooting the generator, press
the OFF button on the Digital Controller. Place all circuit
breakers in the OFF position and allow sufficient time for
adequate cooling.
page 30 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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tranSPOrtIng
TRaNSpORTiNg
When transporting the generator in a flatbed truck:
1. Make sure that the fuel tank is empty.
2. Secure the generator with chains through the lifting eyes on the fuel tank. See Figure 22.
LIFTING
CHAIN
EYE
TYPICAL TIE-DOWN APPLICATION
Figure 22. Transporting On A Flatbed Truck
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 31
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MaIntEnanCE
10 Hrs
DailY
1000
Hrs
Table 11. inspection/Maintenance
250 Hrs 500 Hrs
Check Engine Fluid Levels
Check Air Cleaner
X
X
X
X
X
X
Check Battery Acid Level
Check Fan Belt Condition
Check for Leaks
Check for Loose Parts
Replace Engine Oil and Filter *1
X
X
engine
Clean Air Filter
Check Fuel Filter/Water Separator Bowl
Clean Unit, Inside and Outside
Change Fuel Filter
Clean Radiator and Check Coolant Level*2
Replace Air Filter Element *3
Check all Hoses and Clamps *4
Clean Inside of Fuel Tank
Measure Insulation Resistance Over 3M ohms
X
X
X
X
X
X
X
X
generator
Check Rotor Rear Support Bearing
X
1
*
*
*
*
Replace engine oil and filter at 100 hours, first time only.
Add “Supplemental Coolant Additives (SCA’s)” to recharge the engine coolant.
2
3
4
Replace primary air filter element when restriction indicator shows a vacuum of 625 mm (25 in. H20).
If blowby hose needs to be replaced, ensure that the slope of the blowby hose is at least a 1/2 inch per
foot, with no sags or dips that could collect moisture and/or oil.
When the air filter element is clogged, air intake restriction
becomes greater and the air filter indicator signal shows
ReD. When indicator is red, replace filter immediately.After
changing the air filter, press the air filter indicator button
to reset.
geNeRal iNSpeCTiON
Prior to each use, the generator should be cleaned and
inspected for deficiencies. Check for loose, missing or
damaged nuts, bolts, and other fasteners. Also check for
fuel, oil, and coolant leaks. Use Table 11 as a general
maintenance guideline. For engine maintenance, refer to
the engine instruction manual.
aiR FilTeR
Air Filter
Indicator
Every 250 hours:Remove air filter element (Figure 23) and
clean the filter element with low pressure compressed air.
Air pressure must not exceed 30 psi (207 kPa). The filter
can be cleaned and reused for up to six times if properly
cleaned.Replace air filter if rips or tears are detected while
cleaning.
Air Filter
Element
air Filter Dust indicator
Figure 23. Air Filter/Indicator
The air filter indicator (Figure 23) is attached to the air filter.
page 32 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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MaIntEnanCE
FuelTaNk iNSpeCTiON
NOTICE
In addition to cleaning the fuel tank, the following
components should be inspected for wear:
The air filter should be changed more frequently in
dusty operating conditions.
„ Rubber Suspension — look for signs of wear or
deformity due to contact with oil. Replace the rubber
suspension if necessary.
If the engine is operating in very dusty or dry grass
conditions, a clogged air cleaner will result.This can lead to
a loss of power, excessive carbon buildup in the combustion
chamber and high fuel consumption. Change air cleaner
more frequently if these conditions exist.
„ Fuel Hoses — inspect nylon and rubber hoses for signs
of wear, deterioration, and hardening.
Fuel aDDiTiON
„ FuelTank lining — inspect the fuel tank lining for signs
of excessive amounts of oil and other foreign matter.
Add diesel fuel (the grade may vary according to season
and locations).
Replacing Fuel Filter
Removing Water from the Fuel Tank
„ Replace the fuel filter cartridge with a new one every
500 hours.
After prolonged use, water and other impurities accumulate
in the bottom of the tank.Occasionally inspect the fuel tank
for water contamination and drain the contents if necessary.
„ Loosen the drain plug at the lower top of the fuel filter.
Drain the fuel in the fuel body together with the mixed
water. DO NOT spill the fuel during disassembly.
During cold weather, the more empty volume inside the
tank, the easier it is for water to condense. This can be
reduced by keeping the tank full with diesel fuel.
„ Vent any air.
aiR ReMOval
Cleaning inside the Fuel Tank
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel, or
after disassembling the fuel system, bleed the system.
Refer to the Perkins engine manual for details.
If necessary, drain the fuel inside the fuel tank completely.
Using a spray washer (Figure 24) wash out any deposits
or debris that have accumulated inside the fuel tank.
CHeCk Oil level
Check the crankcase oil level prior to each use, or when the
fuel tank is filled.Insufficient oil may cause severe damage
to the engine.The oil level must be between the two notches
on the dipstick as shown in Figure 7.
Replacing Oil Filter
1. Remove the old oil filter.
2. Apply a film of oil to the gasket on the new oil filter.
3. Install the new oil filter.
4. After the oil filter has been replaced, the engine oil will
drop slightly. Run the engine for a while and check for
leaks before adding more oil if needed.Clean excessive
oil from engine.
Figure 24. Fuel Tank Cleaning
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 33
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MaIntEnanCE
RaDiaTOR CleaNiNg
FluSHiNg OuT RaDiaTOR aND ReplaCiNg
COOlaNT
The radiator (Figure 26) should be cleaned with a high-
pressure washer when excessive amounts of dirt and debris
have accumulated on the cooling fins or tube.When using
a high pressure washer, stand at least 5 feet (1.5 meters)
away from the radiator to prevent damage to the fins and
tube.
1. Remove radiator cap. Remove the coolant drain plug.
Move the lever to the open position to start draining
out coolant. See Figure 25.
Remove
Radiator Cap
Battery
Charger
Radiator
Turn to
Open
Radiator
Drain
Figure 26. Radiator Cleaning
Remove
Drain Plug
vOlTage RegulaTOR aDJuSTMeNTS
Figure 25. Draining Coolant
When the voltage regulator is defective or broken and is
replaced, the following adjustment procedure needs to be
performed on the newly installed voltage regulator.
2. Flush the radiator by running clean tap water through
radiator until signs of rust and dirt are removed. Do
not clean radiator core with any objects, such as a
screwdriver.
potentiometers
3. Check hoses for softening and kinks. Check clamps
for signs of leakage.
Figure 27 shows the screwdriver adjustable potentiometers
on the front of the voltage regulator.
4. Move lever to the closed position and reinstall coolant
drain plug.
VOLTAGE REGULATOR
5. Replace with coolant as recommended by the engine
manufacturer.
6. Close radiator cap tightly.
VOLT
STAB
U/F
WaRNiNg
1
3
Allow engine to cool before flushing out
radiator. Flushing the radiator while hot
could cause serious burns from water or
steam.
2
Figure 27. Voltage Regulator Potentiometers
1. Coarsevoltage adjust — A screwdriver adjustable
potentiometer on the front of the voltage regulator
page 34 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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MaIntEnanCE
used to adjust the generator output voltage.Clockwise
adjustment increases the generator output voltage.
F1 and the negative lead to F2 or use an appropriate
AC voltmeter on the generator output leads.
6. Start and run the generator at no load and rated speed.
The generator voltage should build up to a minimum
level. If it does not build up, refer to the generator
manual for field flashing information.
2. Stability adjust — System stability is the ability of the
generator to respond to load transients.Decreasing the
stability makes the generator less sluggish and faster
to respond to load transients.
7. Slowly adjust the Voltage Adjust potentiometer until
the generator voltage reaches the nominal value. Also
adjust the remote Voltage adjust to set the generator
voltage to the exact value desired.
If the stability of the regulator is decreased too much,
the generator will tend to hunt under steady state
conditions.Increasing stability increases the response
time of the generator while decreasing stability
decreases response time.
8. TurntheStabilityAdjustpotentiometercounterclockwise
until instability is shown on the voltmeter. With the
system operating in an unstable condition, slowly
adjust the Stability Adjust potentiometer clockwise until
generator stability is reached.
The screwdriver adjustable potentiometer is used
to adjust the system stability. Clockwise adjustment
increases stability.
3. Roll-Off Frequency Selection — The roll-off point is
the frequency where the generator voltage starts to
decrease.This reduces the kilowatt load to the engine,
which allows the engine to recover in speed under any
load transient condition.
9. Interrupt the regulator power for a short period of time
(1 to 2 seconds).
10. If the generator remains stable, no further adjustment
is necessary.
The voltage regulator has the roll-off point preset to
58 Hz in the 60 Hz mode. To change the roll off point,
perform the following:
11. If generator does not remain stable, increase the
stability slightly and interrupt the regular power again.
12. Repeat step 11 until system stability is reached and
maintained.
a. Adjust the engine to the desired rated speed
(60 Hz).
geNeRaTOR STORage
b. Set the voltage to the desired setting at rated
speed.
For long term storage of the generator the following is
recommended:
c. Adjust the engine speed to the desired roll-off point.
1. Drain the fuel tank completely.Treat with a fuel stabilizer
if necessary.
d. Turn the potentiometer counterclockwise until the
voltage returns to rated.
2. Completely drain the oil from the crankcase and refill,
if necessary, with fresh oil.
e. Readjust the engine speed to rated speed.
adjustment procedure
3. Clean the entire generator, inside and outside.
4. Disconnect the battery.
1. Make sure that the voltage regulator is connected
correctly to the generator.Refer to the generator wiring
diagram.
5. Make sure engine coolant is at proper level.
6. Cover the generator and store in a clean, and dry place.
2. Turn the Voltage Adjust potentiometer fully
counterclockwise.
3. Turn Stability Adjust potentiometer fully clockwise.
4. Set the remote Voltage Adjust to the center position.
5. Connect the positive lead of a 100 VDC voltmeter to
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 35
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trOubLEShOOtIng (gEnEratOr)
Troubleshooting (generator)
Symptom
possible problem
Solution
Check output voltage using a voltmeter.
Check wiring and repair.
AC Voltmeter defective?
Is wiring connection loose?
Is voltage regulator defective?
Defective Rotating Rectifier?
Defective Exciter Field?
Is engine speed correct?
Is wiring connections loose?
Defective AVR?
No Voltage Output
Replace if necessary.
Check and replace.
Check and replace.
Turn engine throttle lever to “High”.
Check wiring and repair.
Low Voltage Output
High Voltage Output
Replace if necessary.
Is wiring connections loose?
Defective AVR?
Check wiring and repair.
Replace if necessary.
Short Circuit in load?
Check load and repair.
Over current?
Confirm load requirements and reduce.
Check and replace.
Circuit Breaker Tripped
Defective circuit breaker?
Over current Relay actuated?
Confirm load requirement and replace.
page 36 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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trOubLEShOOtIng (EngInE)
Troubleshooting (Engine)
Symptom
Possible Problem
No Fuel reaching injection pump?
Defective fuel pump?
Solution
Add fuel. Check entire fuel system.
Replace fuel pump.
Fuel filter clogged?
Replace fuel filter and clean tank.
Replace or repair fuel line.
Faulty fuel supply line?
Check piston, cylinder and valves. Adjust or
repair per engine repair manual.
Compression too low?
Engine will not start or start is delayed,
although engine can be turned over.
Fuel pump not working correctly?
Oil pressure too low?
Repair or replace fuel pump.
Check engine oil pressure.
Comply with cold starting instructions and
proper oil viscosity.
Low starting temperature limit exceeded?
Defective battery?
Charge or replace battery.
Check carefully for loosened fuel line
coupling, loose cap nut, etc.
Air or water mixed in fuel system?
Refill engine crankcase with correct type of
oil for winter environment.
Engine oil too thick?
At low temperatures engine will not start.
Defective battery?
Fuel filter blocked?
Fuel supply blocked?
Defective fuel pump?
Fuel tank empty?
Replace battery.
Replace fuel filter.
Check the entire fuel system.
Replace fuel pump.
Add fuel.
Engine fires but stops soon as starter is
switched off.
Fuel filter blocked?
Defective fuel pump?
Replace fuel filter.
Replace fuel pump.
Engine stops by itself during normal
operation.
Mechanical oil pressure shutdown sensor
stops the engine due to low oil?
Add oil. Replace low oil shutdown sensor if
necessary.
Fuel tank empty?
Replace fuel filter.
Fuel filter clogged?
Replace fuel filter.
Fuel tank venting is inadequate?
Ensure that tank is adequately vented.
Check threaded pipe unions tape and tighten
unions a required.
Leaks at pipe unions?
Low engine power, output and speed.
Speed control lever does not remain in
selected position?
See engine manual for corrective action.
Engine oil level too full?
Correct engine oil level.
Use No. 2-D diesel fuel only. Check the fuel
injection pump element and delivery valve
assembly and replace as necessary.
Injection pump wear?
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 37
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trOubLEShOOtIng (COntrOLLEr)
CauTiON
Beforeopeningtheenclosuretoperformtroubleshooting
or any service task, isolate the controller from any
possible source of power.Failure to do so may result in
serious personal injury or death due to electrical shock.
Troubleshooting (MeC20 Controller)
Symptom
possible problem
Solution
Check wiring and repair. NOTE: The MEC 20 electronic
fuse triggers when there is an overload condition and does
not reset until the supply voltage is removed and overload
condition is corrected.
Does not power up even
with correct DC power
applied
Wiring errors or short circuit?
Check that the "watchdog" LED on the rear of the PCB is
flashing red meaning that the microprocessor is working. If
not, repair or replace microprocessor.
Microprocessor defective?
Insufficient DC supply voltage?
Bad LCD resolution?
LCD is not operational
Check voltage at input terminals B+ and B- (10-30 VDC).
Adjust LCD contrast potentiometer (R115) on the rear of
PCB for good pixel resolution for the operating temperature
of the unit.
Check that the controller is set to the OFF mode before
resetting.
Controller not in OFF mode?
Engine is running?
Controller cannot be
"reset"
Check that the engine has come to a complete stop before
resetting.
Check that all shutdown circuits are reset (red shutdown
LED must be off).
Shutdown circuits reset?
Engine speed signal must be detected (speed signal green
LED on) during cranking if the "run-output fail safe" feature
is enabled. Verify correct magnetic pick-up signal at cranking
(2.0 VAC min.)
No engine speed signal?
RUN output LED off?
No "RUN" output signal
Check that the RUN output LED (on the rear of the PCB) is
on. If yes, verify relay contact operation on terminals #18 and
#19.
Verify that the controller has been programmed with the correct
Controller not correctly programmed? values for the number of flywheel teeth, nominal RPM, and
overspeed setpoint percentage.
Overspeed shutdown occurs
at normal speed
Verify that the controller has been programmed with the correct
Controller not correctly programmed? values for voltage sensing PT ratio and/or current sensing CT
ratio.
Verify that the battery supply DC negative conductor is properly
Battery not properly grounded?
grounded to the engine block (i.e. to a common ground point.)
Voltage or current metering
is reading incorrectly
Verify that the controller's analog input has been properly
Analog input not properly calibrated?
calibrated.
Verify that the voltage sensing wiring connection to the
controller matches power distribution type (Note: standard
direct voltage connection requires that the generator's neutral
is solidly grounded).
Incorrect wiring?
page 38 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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trOubLEShOOtIng (COntrOLLEr)
Troubleshooting (MeC20 Controller) - continued
Symptom
possible problem
Solution
Verify that the controller's analog input has been properly
calibrated as per manual instructions.
Improper calibration?
Engine temperature or oil
pressure display is reading Incorrect engine sensor wiring?
incorrectly
Verify that the engine sensor wiring is correct (Note:Use factory-
supplied engine sensors only.)
Verify that the battery supply DC negative conductor is properly
grounded to the engine block (i.e. to a common ground point.)
Battery not properly grounded?
Check that the wiring from the controller terminal #37 and
#38 to the engine mounted sender is correct (i.e. wiring is
not open or shorted).
Incorrect wiring?
Engine temperature or oil
displays "9999"
Verify that the engine mounter senders have correct
resistance reading for corresponding input temperature or
pressure (refer to Controller manual).
Incorrect resistance?
Improper calibration?
Verify calibration.
Check that the wiring from the controller terminal #37 and
#38 to the engine mounted sender is correct (i.e. wiring is
not open or shorted).
Engine alarms on high
Incorrect wiring?
engine temperature or low
oil pressure when engine
is operating within normal
Verify that the engine mounter senders have correct
resistance reading for corresponding input temperature or
pressure (refer to Controller manual).
Incorrect resistance?
limits
Verify that the interconnecting ribbon cable between the
faceplate and the main printed circuit board is connected
correctly.
Keys on faceplate do not
Incorrect connection?
operate.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 39
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trOubLEShOOtIng (vOLtagE rEguLatOr)
Troubleshooting (voltage Regulator)
Symptom
possible problem
Solution
Check wiring diagram for proper connections.
Residual Voltage at regulator power input
wires 3 and 4 below 10 VAC?
Flash generator speed. Refer to field flashing section
in generator manual.
Reduce acceleration time.
Accelerated time to rated speed too long?
Interrupt power input to regulator after achieving rated
speed.
ResidualVoltage - No output
Field leads F1, F2 not connected?
Power input leads not connected?
Blown or missing fuse?
Connect field leads F1, F2.
Connect power input leads 3, 4.
Replace fuse.
Defective regulator?
Replace regulator.
Defective generator?
Consult generator manual.
Check wiring diagram for proper connections.
Incorrect connections?
Rotate Voltage Adjust clockwise until the desired
voltage is reached.
Voltage Adjust turned down?
Output Voltage Low
Output Voltage High
Rotate remote Voltage Adjust clockwise until the
desired voltage is reached.
Remote Voltage Adjust is turned down?
Defective regulator?-
Replace regulator.
Rotate Voltage Adjust counterclockwise until the
desired voltage is reached.
Voltage Adjust turned too high?
Rotate remote Voltage Adjust counterclockwise until
the desired voltage is reached.
Remote Voltage Adjust is turned too high?
Defective regulator?
Output Voltage High - No
Adjustment
Replace regulator.
Remote Voltage Adjust
Operates Backwards
Voltage adjust wire connected backwards? Reverse the wiring of the remote Voltage Adjust.
Generator Output Voltage
Hunting
Stability Adjust not set properly?
Defective regulator?
Rotate the Stability Adjust clockwise until hunting stops.
Replace regulator.
Poor regulation
page 40 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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MaIntEnanCE PartS LOCatOr
Refer to Figure 28 for the location of the components in the
generator wiring diagram.
N
U
E
S
R
A1
J
Z
D1
Y
E1
G
J1
C1
K1
B1
O
H
T
I
X
W
C
M
V
A
P
B
K
Q
L
D
F
H1
F1
Figure 28. Maintenance Parts Locator
G1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 41
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gEnEratOr WIrIng DIagraM (SIngLE PhaSE)
TB1
D
7
YEL/BRN
CONTROL BOX
3 AMP DIODE
THOMPSON TECHNOLOGY
MEC20 CONTROLLER
47 OHM, 5W
16
WHT/RED
RED/GRY
WHT/RED
RUN 19
4
5
C
G
10
WHT
RUN 18
6
ENGINE GROUND
POINT (E1)
RED/GRY
WHT/BLU
E
23
24
CRANK
CRANK
17
WHT/BLU
10 AMP
14 AWG RED/GRY
10 AWG RED/GRN
1
B
A
2
3
GAC 5500
GOVERNOR
CONTROLLER
F
FREQUENCY ADJUST
POTENTIOMETER
5K OHM 10 TURN
G
WOODWARD
GOVERNOR
ACTUATOR
WHT/RED
WHT
cw
3
SH3-BLK
2
1
SH3-RED
11
12
BLU/BRN
BLU/BRN
BLU/BRN
BLU/BRN
BRN/BLU
BRN/BLU
TWISTED PAIR
TWISTED PAIR
13
14
15
SH1-BLK
SH1-WHT
SH1-BLK
SH1-WHT
126
FLYWHEEL
GEAR TEETH
MAGNETIC
PICK-UP
SH1-SHD
SH1-SHD
SH1-SHD
SH2-WHT
H
MP2
MP1
MAGNETIC
PICKUP
SH2-BLK
GLOW PLUG
RELAY
RED/GRY
WHT/GRY
BLU/ORG
29
30
I
(E1)
PROGRAMMABLE
OUTPUT #1
GLOW PLUG
18
WHT/GRY
GLOW PLUG
ELEMENTS
33
34
35
6 AWG BLU
31
32
6 AWG RED
PROGRAMMABLE
OUTPUT #2
UNUSED
YEL/BLU
GRN/BLU
BLU
34
35
PROGRAMMABLE
OUTPUT #3
UNUSED
CASE GROUNDED
36
37
YEL/WHT
YEL/RED
YEL/ORG
YEL
J
21
22
PROGRAMMABLE
OUTPUT #4
UNUSED
38
39
40
CUSTOMER CONNECTIONS
CONNECT DIRECTLY TO EXPANSION
25
26
MODULE TERMINALS
COMMON FAIL
THOMPSON MEC20
EXPANSION MODULE
K
RED/GRY
BATT +
B+
TB1
TB1
B+
GRY/RED
WHT
RED/GRY
WHT/GRN
WHT/GRN
PUR/WHT
BATT - B-
COOLANT TEMPERATURE
SWITCH
WHT
B-
GND.
B-
(E1)
G
PUR/WHT
9
WHT
ENGINE TEMP SEND 38
GND.
OIL PRESSURE SENDER
(E1)
G
PURPLE
WHT/BLK
BLK/GRY
10
20
PURPLE
WHT/BLK
BLK/GRY
OIL PRESS. SEND
37
3
N
LOW FUEL SWITCH
INPUT #3
LOW FUEL WARNING
(E1)
J2
RUPTURED BASIN SWITCH
O
8
(E1)
INPUT #2
RUPTURE BASING WARNING
2
P
LOW COOLANT
RELAY
Q
(E1)
L
J17
19
WHT
13
BLK/ORG
BLK/ORG
14
LOW COOLANT
R
LEVEL SENSOR
OPEN WHEN WET
BLUE
RED
5
9
INPUT #1
LOW COOLANT LEVEL
BLK/PINK
WHT
1
M
WHT/RED
VOLTAGE FINE ADJUST
POTENTIOMETER
CLOSED WHEN DRY
BLACK
2K OHM 10 TURN
21
22
WHT/BRN
WHT/BRN
BRN/WHT
1
(R1)
2
3
BRN/WHT
23
24
25
GREEN
GREEN
CT COM IN
CT L3+ IB
(SPARE)
RED/BLK
RED/BLU
RED/BLK
RED/BLU
CT L2+
IC
IA
26
RED/YEL
RED/YEL
CT L1+
GEN L1
CAT 5 ETHERNET
J1
J6
30
29
28
27
GRY/RED
GRY/WHT
GRY/GRN
GREY
GRY/RED
GRY/WHT
GRY/GRN
GREY
VA
VB
VC
VN
GEN L2
GEN L3
GEN NEU.
31
BLK/WHT
BLK/YEL
REMOTE START 16
REMOTE START
REMOTE ST AR T CONT ACTS
32 CLOSE TO ST AR T IN AUTO
17
page 42 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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gEnEratOr WIrIng DIagraM (SIngLE PhaSE)
S
ALTERNATOR
YEL/BRN
WHT/RED
D+
B+
STARTER
SOLENOID
T
WHT/BLU
WHT/BLU
WHT
10 AWG ORG
6 AWG RED
10 AWG RED/GRN
(S)
(B)
6 AWG RED
STARTER
MOTOR
U
1/0 RED
3.5 AMP
BATTERY CHARGER
CHASSIS GND
W
BLK
GRN
WHT
1/0 BLK
NOTES:
10 AWG RED
V
USE #4 AWG BLACK STAGE AND LIGHTING CABLE (L1)
USE #4 AWG RED STAGE AND LIGHTING CABLE (L2)
USE JUMPER TO SELECT FOR 60 Hz OPERATION
1
CONNECT TO
120 VAC, 60 Hz
POWER
PLUG
2
3
+12 VOLT
BATTERY
10 AWG BLK
L2
T4
L1
T1
NEUTRAL
6 AWG RED
GENERATOR
SADDLE BOX
#10 AWG GREEN CONNECT
TO GENERATOR SADDLE
BOX GROUND (BOND) POINT
ENGINE GROUND
POINT (E1)
X
T2
T3
JACKET WATER HEATER
Y
BLK
GRN
WHT
CONNECT TO
120 VAC, 60 Hz
POWER
CONNECTION STUD
TERMINAL BLOCK
500W
PLUG
Z
ROTATING RECTIFIER
SINGLE-PHASE
FULL BRIDGE
MAIN ARMATURE
(STATOR)
EXCITER ARMATURE
(ROTOR)
VOLTAGE REGULATOR
BASLER SE350
A1
MAIN FIELD
(ROTOR)
3
EXCITER FIELD
(STATOR)
(+)
5 AMP SLOW BLOW
F+
(+)
(-)
EXITER
7
6
REMOTE
120 VAC
NEU.
FIELD
INPUT
VOLTAGE ADJ.
FUSE
U/F
DC INPUT
DC
INPUT
T2
T3
VOLT
REMOTE
VOLTAGE ADJ.
F-
COARSE STAB
3
4
(-)
120 VAC
T4
L2
SINGLE PHASE
AC OUTPUT
SINGLE PHASE, 240 VAC
60 Hz OUTPUT
L1
B1
CURRENT
TRANSFORMER
(L2)
100:5
WHT/RED
100 AMP 3-POLE
CIRCUIT BREAKER
F1
WHT/BRN
BRN/WHT
C1
L1
CURRENT
TRANSFORMER
(L1)
1
2
100:5
CONNECT TO LOAD VIA
CAMLOK ASSEMBLY
GREEN
L2
RED/BLK
RED/BLU
(SPARE)
D1
5 AMP
G1
#4 AWG GREEN
STAGE AND LIGHTING
CABLE (GROUND)
NOT USED
BLK
RED
#4 AWG WHITE
STAGE AND LIGHTING
CABLE (NEUTRAL)
RED/YEL
H1
E1
5 AMP
GRY/RED
GRY/WHT
GRY/GRN
GREY
CIRCUIT BREAKER BOX
NOT USED
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 43
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gEnEratOr WIrIng DIagraM (thrEE PhaSE)
page 44 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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gEnEratOr WIrIng DIagraM (thrEE PhaSE)
50:5
50:5
K1
CURRENT
TRANSFORMER
(L3)
50:5
J1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 45
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ExPLanatIOn Of CODE In rEMarkS COLuMn
The following section explains the different symbols and
QTY. Column
remarks used in the Parts section of this manual. Use the
help numbers found on the back page of the manual if there
are any questions.
Numbers used — Item quantity can be indicated by a
number, a blank entry, or A/R.
A/R (As Required) is generally used for hoses or other
parts that are sold in bulk and cut to length.
NOTICE
The contents and part numbers listed in the parts
section are subject to change without notice.Multiquip
does not guarantee the availability of the parts listed.
A blank entry generally indicates that the item is not sold
separately.Other entries will be clarified in the“Remarks”
Column.
SaMple paRTS liST
ReMaRkS Column
NO. paRT NO. paRT NaMe
QTY. ReMaRkS
Some of the most common notes found in the “Remarks”
Column are listed below. Other additional notes needed
to describe the item can also be shown.
1
2%
12345
BOLT .....................1 .....INCLUDES ITEMS W/%
WASHER, 1/4 IN. ..........NOT SOLD SEPARATELY
WASHER, 3/8 IN. ..1 .....MQ-45T ONLY
2% 12347
3
4
12348
12349
HOSE ..................A/R ...MAKE LOCALLY
BEARING ..............1 .....S/N 2345B AND ABOVE
assembly/kit — All items on the parts list with the
same unique symbol will be included when this item is
purchased.
NO. Column
Indicated by:
unique Symbols — All items with same unique
symbol
“INCLUDES ITEMS W/(unique symbol)”
(@, #, +, %, or >) in the number column belong to the
same assembly or kit, which is indicated by a note in the
“Remarks” column.
Serial Number Break — Used to list an effective serial
number range where a particular part is used.
Indicated by:
Duplicate item Numbers — Duplicate numbers indicate
multiple part numbers, which are in effect for the same
general item, such as different size saw blade guards in
use or a part that has been updated on newer versions
of the same machine.
“S/N XXXXX AND BELOW”
“S/N XXXX AND ABOVE”
“S/N XXXX TO S/N XXX”
Specific Model Number use — Indicates that the part
is used only with the specific model number or model
number variant listed. It can also be used to show a
part is NOT used on a specific model or model number
variant.
NOTICE
When ordering a part that has more than one item
number listed, check the remarks column for help in
determining the proper part to order.
Indicated by:
“XXXXX ONLY”
“NOT USED ON XXXX”
paRT NO. Column
Numbers used — Part numbers can be indicated by a
number, a blank entry, or TBD.
“Make/Obtain locally” — Indicates that the part can
be purchased at any hardware shop or made out of
available items.Examples include battery cables, shims,
and certain washers and nuts.
TBD (To Be Determined) is generally used to show a
part that has not been assigned a formal part number
at the time of publication.
“Not Sold Separately”— Indicates that an item cannot
be purchased as a separate item and is either part of an
assembly/kit that can be purchased, or is not available
for sale through Multiquip.
A blank entry generally indicates that the item is not sold
separately or is not sold by Multiquip. Other entries will
be clarified in the “Remarks” Column.
page 46 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SuggEStED SParE PartS
MQp20p WiTH peRkiNS 404D-22 DieSel eNgiNe
1 to 3 units
Qty.
p/N
Description
1............140517050............OIL FILTER
6............26561117..............KIT, FUEL FILTER
1............130506300............PRIMER
1............GPC1000..............SENSOR, LOW FUEL
1............U85046501...........ALTERNATOR
2............EE2916.................RELAY, STARTER SOLENOID, COLE HERSEE, 12V
1............EE46269...............SENSOR, COOLANT LEVEL
1............MEC000788..........SENSOR, WATER TEMPERATURE
1............U45537130...........HOSE, RADIATOR, UPPER
1............U45537140...........HOSE, RADIATOR LOWER
1............145996051............GASKET, THERMOSTAT
1............145206230............THERMOSTAT
1............U45010062...........WATER PUMP
3............080109107............BELT
1............24850072..............RADIATOR CAP
3............135326206............ELEMENT, AIR FILTER
1............MEC003654..........SENSOR, OIL PRESSURE
5............EE5812.................FUSE, 10 AMP
5............EE5811.................FUSE, 5 AMP
3............A-527066-1...........FUSE, 5 AMP, SLOW BLOW
1............EE10997...............CIRCUIT BREAKER, CUTLER HAMMER, 3-POLE, 100A
NOTICE
Part numbers on this Suggested Spare Parts list may
supersede/replace the part numbers shown in the
following parts lists.
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 47
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hOuSIng aSSy.
5
1
6
7
4
6
2
3
page 48 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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hOuSIng aSSy.
NO.
1
2
3
4
5
6
7
paRT NO.
EE40861
EE40727
EE54214
EE33427
EE33424
EE33425
EE42018
paRT NaMe
QTY.
ReMaRkS
HOUSING ASSY., PAINTED WHITE, W/ INSULATION
FLANGE, ADAPTOR, ENCLOSURE TO FUEL TANK
KIT, INSULATION
MQ POWER DECAL BLACK
MQ POWER DECAL RED
MQ POWER DECAL RED
1
1
1
1
1
2
1
PANEL COVER
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 49
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EngInE anD gEnEratOr MOuntIng aSSy.
2
6
1
7
3
3
4
5
page 50 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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EngInE anD gEnEratOr MOuntIng aSSy.
NO.
1
2
3
4
5
6
7
paRT NO.
EE46389
EE54153
EE40907
EE54212
EE54211
EE54208
EE54209
paRT NaMe
GENERATOR, 30KW
QTY.
ReMaRkS
1
1
4
1
1
2
6
ENGINE, PERKINS 21.3KW 404D-22
MOUNT, COMPRESSION
CROSS MEMBER, ENGINE
CROSS MEMBER, GENERATOR
DRIVE DISC
BOLT, DRIVE DISC
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 51
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fuEL aSSy.
16
17
18
19
18
13
22
22
14
15
21
10
12
15
15
13
14
23
22
15
27
1
26
11
20
25
24
22
To TB1-20
8
3
4
22
2
7
6
5
28
5
page 52 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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fuEL aSSy.
NO.
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
paRT NO.
EE40871
paRT NaMe
QTY.
1
1
1
1
2
1
1
1
1
1
1
2
2
4
ReMaRkS
TANK, FUEL, SUB BASE, 50 GAL
SENSOR, LOW FUEL
CAP, FUEL TANK, LOCKING (2IN NPT)
CAP, STANDARD VENT
CAP, EMERGENCY PRESSURE RELIEF
GAUGE, FUEL
FITTING, FUEL RETURN
FITTING, FUEL SUPPLY
FUEL FILTER ASSY.
PRIMER
GPC1000
GPC 3005
GPC 3152
GPC 3162
GPC 1003
GPC3600
GPC3600
2656613
130506300
130506350
33811114
131246290
067100015
26561117
LIFT PUMP
OLIVE
PIPE, LOW PRESSURE FUEL
CLIP
FUEL FILTER KIT ..............................................1................INCLUDES ITEMS W/@
17@ 26560014
18@ 0490786
19@
SEAL, O-RING
SEAL
1
2
ELEMENT, FUEL FILTER ..................................1................MUST PURCHASE KIT
20
21
22
23
24
25
26
27
28
068209126
068209227
HOSE
PIPE, FUEL
1
1
CLAMP, HOSE 5/16IN OETTIKER ....................6................OBTAIN LOCALLY
HOSE, FUEL, 5/16IN X 8IN...............................1................OBTAIN LOCALLY
HOSE, FUEL 3/16IN X 3FT ...............................1................OBTAIN LOCALLY
HOSE, FUEL, 5/16IN X 14IN.............................1................OBTAIN LOCALLY
GOVENOR ACTUATOR
ALARM, FLOAT, FUEL, IN BASIN
BALL VALVE W/ RED HANDLE
EE55628
GPC4306
944-116
1
1
1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 53
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ELECtrICaL aSSy.
15
18
18A
16
17
11
5
12
5
7
13
6
6
7
10
1
4
14
9
20
2
3
To External
Power Source
8
19
page 54 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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ELECtrICaL aSSy.
NO.
1
2
3
4
paRT NO.
EE46626
EE34486
EE38190
EE25596
paRT NaMe
QTY.
ReMaRkS
BATTERY, MAINT. FREE, GROUP 24, 800
J-BOLT, BATTERY, 10.38 IN.
TRAY, BATTERY
1
2
1
1
BATTERY HOLD DOWN
5
6
NUT, ACORN CAP, 5/16-18, SS ........................2................OBTAIN LOCALLY
NUT, NYLOCK 55, 5/16-18, SS .........................2................OBTAIN LOCALLY
7
8
EE40908
EE40904
WASHER, SNUBBING 2.0" O.D, .45" I.D.
BRACKET, MTG., BATTERY TRAY
AND CHARGER
CHARGER, BATTERY, AUTO, FLOAT EQ
BRACKET, SENS LC CHARGER MNTING
COVER, RAIN, BATTERY CHARGER
2
1
1
1
1
9
10
11
EE31218
EE34068
EE36506
12
13
CABLE, BATTERY, NEGATIVE BLACK, ............1................MAKE LOCALLY
5/16-10 GA EYE TERMINAL 5'8" LONG
CABLE, BATTERY, NEGATIVE RED,.................1................MAKE LOCALLY
5/16-10 GA EYE TERMINAL 5'8" LONG
14
15
16
17
18
18A
19
20
EE6009
FITTING, CONDUIT, 90°, NON-METALLIC
1
1
1
1
185086600
U85046501
080109107
EE2543
EE54416
EE7315
EE22218
STARTER MOTOR
ALTERNATOR
BELT
MAGNETIC PCKUP W/ WIRES (RED/BLCK) 1
ADAPTER, MAGNETIC PICK-UP
PLACARD, WATER DRAIN
3/8" SPLIT LOOM
1
1
3FT
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 55
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jaCkEt WatEr hEatEr aSSy.
3
5
5
3
4
4
3
1
3
To External
Power Source
2
page 56 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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jaCkEt WatEr hEatEr aSSy.
NO.
1
2
paRT NO.
EE40205
EE40939
paRT NaMe
HEATER, ENGINE BLOCK, TANK STYLE
BRACKET, MOUNTING, HEATER
QTY.
1
1
ReMaRkS
3
4
CLAMP, HOSE #10 (SILICONE STYLE) ...........4................OBTAIN LOCALLY
HOSE, HEATER, HI-MILLER, 5/8IN X 2FT .......2................OBTAIN LOCALLY
5
EE18071
VALVE, LOCKING BALL, 3/8IN INLET
2
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 57
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SOLEnOID aSSy.
2
1
4
3
page 58 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SOLEnOID aSSy.
NO.
1
2
3
4
paRT NO.
EE2916
EE41370
EE41595
EE5736
paRT NaMe
QTY.
ReMaRkS
RELAY, STARTER SOLENOID, 12V
BRACKET, STARTER SOLENOID
SHIELD, LEXAN COVER, SOLENOID
DIODE, /AMP
2
1
1
2
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 59
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raDIatOr aSSy.
19
21
26
26A
7
3
20
22
22
23
22
25
6
24
4
22
5
8
1
2
Radiator
Connection
9
11
10
15
16
12
13
14
18
17
page 60 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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raDIatOr aSSy.
NO.
1
paRT NO.
TPN440
paRT NaMe
RADIATOR.........................................................1................INCLUDES ITEMS W/@
QTY.
ReMaRkS
2
3
4
5
6@
7
8
U45546860
U75316330
U75316371
U75316312
24850083
U45977221
U98116931
U45977201
U45010062
145306880
U10267271
U45976820
U10267291
145996051
145206230
944-116
GUARD
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
FAN GUARD
FAN GUARD
GUARD
SHROUD
BRACKET
MOUNTING
BRACKET
WATER PUMP
FAN
BRACKET
9
10
11
12
13
14
15
16
17
18
BRACKET
BRACKET
GASKET, THERMOSTAT
THERMOSTAT
VALVE, DRAIN, MINI BALL 1/4IN NPT
HOSE, DRAIN, INSTA-GRIP 3/8-13.5IN............1.................MAKE LOCALLY
RADIATOR CAP
HOSE,1/4IN I.D. X 32IN.....................................1................MAKE LOCALLY
19@ 24850072
20@
1
21
22
23
24
25
26
26A
EE46221
0180067
U45537130
U45537140
MEC000788
EE10696
SENSOR, COOLANT LEVEL
CLAMP
1
4
1
1
1
1
3FT
HOSE, RADIATOR UPPER
HOSE, RADIATOR LOWER
SENSOR, WATER TEMP.
KIT, WIRING HARNESS COOLANT SENSR
SPLIT LOOM, 3/8IN
EE22218
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 61
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aIr fILtEr aSSy.
3
2
5
1
4
8
6
7
10
9
8
page 62 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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aIr fILtEr aSSy.
NO.
1
2
3@
4@
5@
6@
7@
8
paRT NO.
135016350
W14501020
26510402
26510418
135326206
paRT NaMe
AIR FILTER ASSY..............................................1................INCLUDES ITEMS W/@
QTY.
ReMaRkS
COVER
INDICATOR
BRACKET
ELEMENT, AIR FILTER
1
1
1
1
BODY.................................................................1................NOT SERVICED SEPARATELY
26510194
21825194
U35597790
U30976791
VALVE
1
2
1
1
CLAMP
HOSE
BRACKET
9
10
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 63
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EngInE ExhauSt aSSy.
8
7
6
3
5
4
3
1
2
page 64 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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EngInE ExhauSt aSSy.
NO.
1
2
3
4
5
6
7
8
paRT NO.
EE54297
EE9925
paRT NaMe
EXHAUST FLEX
INSULATION, GLASS GASKET TAPE
CIA, U-STYLE, ZIN PLATED
QTY.
ReMaRkS
1
1
2
EE41113
EE40950
IBJB2SI6CSGA COVER, BLANKET ASSY
EE41076
EE6971
EE16610
SILENCER, 2 IN IN/OUT W/ BLANKET ASSY. 1
1
1
1
1
ELBOW, EXHAUST 2 IN
ASSY, W/ FLANGE & NIPPLE, EXHAUST
RAIN CAP, ALUM, 2-1/2IN
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 65
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EngInE OIL aSSy.
1
2
3
4
6
5
7
8
page 66 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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EngInE OIL aSSy.
NO.
1
2
3
4
paRT NO.
U98436350
052100400
140517050
MEC003654
paRT NaMe
QTY.
ReMaRkS
OIL FILLER CAP
SEAL, O-RING
OIL FILTER
1
1
1
1
SENSOR, OIL PRESSURE
4A
5
ADAPTER, BSPT-2-2.........................................1................OBTAIN LOCALLY
VALVE, LOCKING BALL, BRASS, 1/2IN FNPT 1
EE18072
6
HOSE, OIL DRAIN, GOODYEAR .....................1................MAKE LOCALLY
INSTRA-GRIP 3/8IN X 16 IN.
7
8
218P-4
EE7314
PLUG, OIL DRAIN, 1/4 IN. NPT BRASS
OIL DRAIN, PLACARD
1
1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 67
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COntrOL PanEL aSSy.
1
2
3
4
5
6
page 68 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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COntrOL PanEL aSSy.
NO.
1
2
3@
4@
5
paRT NO.
EE40941
EE40940
EE40944
EE40945
EE40946
EE40942
paRT NaMe
QTY.
ReMaRkS
COVER, TOP, CONTROL AND CIRCUIT BREAKER
FRAME, BOX, CONTROL AND CIRCUIT BREAKER
PANEL, FRONT, CONTROL PANEL
HINGE, FRONT RAIL
PANEL, FRONT, CIRCUIT BREAKER
ASSY, FRONT CONTROL PANEL W/ HINGE ........................1..............INCLUDES ITEM W/@
1
1
1
1
1
6
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 69
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COntrOLLEr aSSy.
13
14
15
4
10
8
9
3
2
19
11
12A
12
5
12B
17
7
16
6
1
18
To Engine
page 70 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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COntrOLLEr aSSy.
NO.
1
paRT NO.
EE30144
paRT NaMe
CONTROLLER, ENG. & GEN.,
MEC-20, 12/24VDC
QTY.
1
ReMaRkS
2
3
4
5
EE26384
EE26385
EE23991
EE35388
RELAY, 8 BLADE DPDT, 12VDC, 10A
BASE, RELAY, SNAP/SURFACE MOUNT
CONTROLLER, SPEED UNIT, 12/24V
MODULE, OUTPUT EXPAN.,
1
1
1
MEC 2/20 W/CABLE
1
1
6
EE26108
BLCK, FUSE HOLDR, WEIDMULLER,
POWER COMM
7
8
9
EE26096
EE41056
EE41503
BLOCK, TERMINAL, SAK 2.5-WEIDMULLER 41
PANEL, BACK, MEC 20
WIRE HARNESS
1
1
10
EE6010
FITTING, CONDUIT, NON-METAL.,
2IN, 90 DEG
1
11
12
12A
12B
13
EE26135
RETAINER, HLDDWN WIRE, MINI RELAY, 8
CABLE, RJ45, STP, CAT5E, 6'
CABLE, ADAPTER, DB9M/RJ45
CABLE, ADAPTER, D39F/RJ45
NUT, SHAFT LOCK, POTENTIOMETER
1
1
1
1
2
MEC006950
MEC006885
MEC006901
EE9949
14
15
EE26026
EE2115
POTENTIOMETER, 2K OHM +/-5%,
10 TURN, 2W
1
1
1
POTENTIOMETER, 5K OHM +/-5%,
10 TURN, 2W
16
17
18
19
EE5812
EE41430
EE41444
EE5980
FUSE, 10 AMP, GOULD SHAWMUT, MIDGT
LANYARD, CONTROL PANEL 21 -1/2 IN LNG 1
WIRE HARNESS, CONTROL BOX
CONDUIT, POLY TUFF TUBING, BLACK
1
1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 71
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SaDDLEbOx aSSy.
6
7
1A
1
2
3
5
3A
4
page 72 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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SaDDLEbOx aSSy.
NO.
1
1A
2
3
3A
4
paRT NO.
EE5811
EE5811
761594-01
EE10470
EE10476
EE6010
paRT NaMe
QTY.
ReMaRkS
FUSE, 5 AMP.....................................................2................1 PHASE UNITS
FUSE, 5 AMP.....................................................3................3 PHASE UNITS
VOLTAGE REGULATOR
TRANSFORMER, CURRENT, 100:5.................2................1 PHASE UNITS
TRANSFORMER, CURRENT, 50:53.................3................3 PHASE UNITS
FITNG, CONDU., NON-METAL, 2IN, 90 DEG 1
1
5
6
7
EE6023
A-527066-1
EE5759
CONNECTOR, SWIVELLOK
FUSE, 5 AMP, SLOW BLOW
BLOCK, MIDGET FUSE TYPE, 3 POLE
1
1
1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 73
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CIrCuIt brEakEr aSSy.
6
3
5
4A
1
2
4
6
7
8
page 74 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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CIrCuIt brEakEr aSSy.
NO.
1
2
3
4
4A
5
6
6
7
paRT NO.
EE41018
EE41019
EE40948
EE10997
EE38966
EE41048
EE41047
EE41047
EE6009
paRT NaMe
GROUND
NEUTRAL
QTY.
1
1
ReMaRkS
BRACKET, SUPPORT CIRCUIT BREAKER .....1................1 PHASE UNITS ONLY
CB, CUTLER HAMMER, 3-POLE, 100A ...........1................1 PHASE UNITS ONLY
CB, CUTLER HAMMER, 3 POLE, 30A..............1................3 PHASE UNITS ONLY
BUS BAR, LONG, 1/4 IN COPPER BAR
BUS BAR, SHORT, 1/4 IN COPPER BAR.........1................1 PHASE UNITS ONLY
BUS BAR, SHORT, 1/4 IN COPPER BAR.........2................3 PHASE UNITS ONLY
1
CONDUIT, FITTING, 90°, NONMETALLIC
CONDUIT, 52 IN LONG
1
1
8
EE5980
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 75
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CaMLOk aSSy.
25
Housing
5
24
26
4
1
3
6
26
2
7
8
24
16
28
9
10
23
15
Camlok
Kit
11
12
13
14
27
17
Ground
Circuit
Breaker
21
Neutral
22
21
18
19
20
page 76 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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CaMLOk aSSy.
NO.
1@
2@
3@
4@
5@
6@
7@
8@
9@
paRT NO.
EE40216
EE8314
EE6382
EE6379
EE6380
EE6378
EE41040
EE41044
EE41043
paRT NaMe
BOX, CONTINUOUS HINGE, HOFFMAN
PANEL, WELL, CAMLOK CONNECTION
QTY.
1
1
ReMaRkS
RECEPTACLE, PNL MNT, FEMALE, GREEN 1
RECEPTACLE, PNL MNT, FEMALE, WHITE
RECEPTACLE, PNL MNT, FEMALE, RED
RECEPTACLE, PNL MNT, FEMALE, BLACK
COVER, HINGED, BLACK
COVER, HINGED, GREEN
COVER, HINGED, WHITE
COVER, HINGED, RED
PLACARD, VINYL, GROUND
PLACARD, VINYL, NEUTRAL
PLACARD, VINYL, LEG 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
10@ EE41041
11@ EE23020
12@ EE23019
13@ EE23016
14@ EE23017
15@ EE41471
16@ EE41540
17@ EE41546
18@ EE6004
19@ EE5980
20@ EE6010
21@ EE41047
22@ EE41048
23
24
25
26
27
28
PLACARD, VINYL, LEG 2
COVER, CAMLOK PNL, INSIDE
TOP, COVER, CAMLOK PNL, INSIDE
BOTTM, COVER, CAMLOK PNL, INSIDE
CONDUIT, FITTING, STR, 2IN
CONDUIT, TUBING, 23 IN
FITTING, CONDUIT, 90-DEG, 2IN
BUS BAR, SHORT, 1/4 IN COPPER BAR.........2................ 3 PHASE UNITS ONLY
BUS BAR, LONG, 1/4 IN COPPER BAR
CAMLOK ASSY..................................................1................INCLUDES ITEMS W/@
KIT, PADLOCK, BOX
DECAL, DANGER HIGH VOLTAGE
RECEPTACLE, PNL MNT, FEMALE, BLUE ......1................3 PHASE UNITS ONLY
PLACARD, VINYL, LEG 3..................................1................3 PHASE UNITS ONLY
COVER, HINGED, BLUE ...................................1................3 PHASE UNITS ONLY
1
EE40866
EE40056
EE6449
EE6381
EE23018
EE41042
1
1
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 77
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tErMS anD COnDItIOnS Of SaLE — PartS
5. Parts must be in new and resalable
condition, in the original Multiquip
package (if any), and with Multiquip part
numbers clearly marked.
Multiquip reserves the right to quote and
sell direct to Government agencies, and to
Original Equipment Manufacturer accounts
who use our products as integral parts of their
own products.
paYMeNT TeRMS
Terms of payment for parts are net 30 days.
FReigHT pOliCY
6. The following items are not returnable:
All parts orders will be shipped collect or
prepaid with the charges added to the invoice.
All shipments are F.O.B. point of origin.
Multiquip’s responsibility ceases when a
signed manifest has been obtained from the
carrier, and any claim for shortage or damage
must be settled between the consignee and
the carrier.
a. Obsolete parts. (If an item is in the
price book and shows as being
replaced by another item, it is
obsolete.)
SpeCial expeDiTiNg SeRviCe
A $35.00 surcharge will be added to the
invoice for special handling including bus
shipments, insured parcel post or in cases
where Multiquip must personally deliver the
parts to the carrier.
b. Any parts with a limited shelf life
(such as gaskets, seals, “O” rings,
and other rubber parts) that were
purchased more than six months
prior to the return date.
liMiTaTiONS OF SelleR’S liaBiliTY
MiNiMuM ORDeR
Multiquip shall not be liable hereunder for
damages in excess of the purchase price of
the item with respect to which damages are
claimed, and in no event shall Multiquip be
liable for loss of profit or good will or for any
other special, consequential or incidental
damages.
The minimum charge for orders from Multiquip
is $15.00 net. Customers will be asked for
instructions regarding handling of orders not
meeting this requirement.
c. Any line item with an extended
dealer net price of less than
$5.00.
d. Special order items.
ReTuRNeD gOODS pOliCY
e. Electrical components.
f. Paint, chemicals, and lubricants.
g. Decals and paper products.
h. Items purchased in kits.
Return shipments will be accepted and
credit will be allowed, subject to the following
provisions:
liMiTaTiON OF WaRRaNTieS
No warranties, express or implied, are
made in connection with the sale of parts or
trade accessories nor as to any engine not
manufactured by Multiquip. Such warranties
made in connection with the sale of new,
complete units are made exclusively by a
statement of warranty packaged with such
units, and Multiquip neither assumes nor
authorizes any person to assume for it
any other obligation or liability whatever in
connection with the sale of its products. Apart
from such written statement of warranty,
there are no warranties, express, implied or
statutory, which extend beyond the description
of the products on the face hereof.
1. A Returned Material Authorization
must be approved by Multiquip prior to
shipment.
7. The sender will be notified of any material
received that is not acceptable.
8. Such material will be held for five
working days from notification, pending
instructions. If a reply is not received
within five days, the material will be
returned to the sender at his expense.
2. To obtain a Return Material Authorization,
a list must be provided to Multiquip
Parts Sales that defines item numbers,
quantities, and descriptions of the items
to be returned.
9. Credit on returned parts will be issued
at dealer net price at time of the original
purchase, less a 15% restocking
charge.
a. The parts numbers and descriptions
must match the current parts price
list.
b. The list must be typed or computer
generated.
10. In cases where an item is accepted, for
which the original purchase document
can not be determined, the price will be
based on the list price that was effective
twelve months prior to the RMA date.
c. The list must state the reason(s)
for the return.
Effective: February 22, 2006
d. The list must reference the sales
order(s) or invoice(s) under
which the items were originally
purchased.
11. Credit issued will be applied to future
purchases only.
pRiCiNg aND ReBaTeS
e. The list must include the name
and phone number of the person
requesting the RMA.
Prices are subject to change without prior
notice. Price changes are effective on a
specific date and all orders received on or
after that date will be billed at the revised price.
Rebates for price declines and added charges
for price increases will not be made for stock
on hand at the time of any price change.
3. AcopyoftheReturnMaterialAuthorization
must accompany the return shipment.
4. Freight is at the sender’s expense. All
parts must be returned freight prepaid to
Multiquip’s designated receiving point.
page 78 —MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11)
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nOtES
MQp20p STaNDBY geNeRaTOR • OpeRaTiON aND paRTS MaNual — Rev. #1 (11/28/11) — page 79
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OPEratIOn anD PartS ManuaL
HERE’S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
United StateS
Multiquip Corporate Office
MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact: [email protected]
Tel. (800) 421-1244
Fax (800) 537-3927
800-427-1244
310-537-3700
Fax: 800-672-7877
Fax: 310-637-3284
Service Department
Warranty Department
800-421-1244
310-537-3700
Fax: 310-537-4259
Fax: 310-943-2238
800-421-1244
310-537-3700
Fax: 310-943-2249
Technical Assistance
800-478-1244
mexico
United Kingdom
MQ Cipsa
Multiquip (UK) Limited Head Office
Carr. Fed. Mexico-Puebla KM 126.5
Momoxpan, Cholula, Puebla 72760 Mexico
Contact: [email protected]
Tel: (52) 222-225-9900
Unit 2, Northpoint Industrial Estate, Tel: 0161 339 2223
Fax: (52) 222-285-0420 Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: [email protected]
Fax: 0161 339 3226
Canada
Multiquip
4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [email protected]
Tel: (450) 625-2244
Tel: (877) 963-4411
Fax: (450) 625-8664
© COPYRIGHT 2011, MULTIQUIP INC.
Multiquip Inc, the MQ logo and the MQ Power logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other
trademarks are the property of their respective owners and used with permission.
This manual MUsT accompany the equipment at all times.This manual is considered a permanent part of the equipment and should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications, design or the information published
in this publication at any time without notice and without incurring any obligations.
Your Local Dealer is:
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