Generac Portable Generator 004451 004582 User Manual

ULTRA SOURCE  
Commercial, Industrial, Residential  
Portable Generator  
Owner’s  
Manual  
• Safety  
• Assembly  
• Operation  
• Maintenance  
• Troubleshooting  
• Electrical Data  
• Parts  
• Warranty  
MODELS:  
004451 (12,500 Watt)  
004582 (15,000 Watt)  
FOR YOUR NEAREST AUTHORIZED SERVICE CENTER 1-800-333-1322  
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understand all instructions before using this  
equipment. We also strongly recommend instructing  
other users to properly start and operate the unit. This  
prepares them if they need to operate the equipment  
in an emergency.  
INTRODUCTION  
Thank you for purchasing this model of the GUARDIAN® product line by  
Generac Power Systems, Inc. This model is a compact, high  
performance, air-cooled, engine driven generator designed to supply  
electrical power to operate electrical loads where no utility power is  
available.  
CAUTION! Always disconnect spark plug wire and place the wire  
where it cannot contact the spark plug to prevent accidental starting  
when setting up, transporting, adjusting or making repairs to your  
generator.  
READ THIS MANUAL THOROUGHLY  
The generator produces dangerously high voltage that can cause  
extremely hazardous electrical shock. Avoid contact with bare wires,  
terminals, etc. Never permit any unqualified person to operate or  
service the generator.  
If you do not understand any portion of this manual, contact your  
nearest GENERAC/GUARDIAN® Authorized Dealer for starting,  
operating and servicing procedures.  
Throughout this publication, and on tags and decals affixed to the  
generator, DANGER, WARNING, CAUTION and NOTE blocks are used  
to alert you to special instruction about a particular operation that may  
be hazardous if performed incorrectly or carelessly. Observe them  
carefully. Their definitions are as follows:  
Never handle any kind of electrical cord or device while standing in  
water, while barefoot or while hands or feet are wet. Dangerous  
electrical shock will result.  
The National Electric Code requires the frame and external  
electrically conductive parts of the generator be properly connected  
to an approved earth ground. Local electrical codes may also  
require proper grounding of the generator. Consult with a local  
electrician for grounding requirements in your area.  
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ƽ
DANGER  
ƽ
After this heading, you can read instructions that, if  
not strictly complied with, will result in personal injury  
or property damage.  
Use a ground fault circuit interrupter in any damp or highly  
conductive area (such as metal decking or steel work).  
Do not use worn, bare, frayed or otherwise damaged electrical cord  
sets with the generator.  
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ƽ
WARNING  
ƽ
After this heading, you can read instructions that, if  
not strictly complied with, may result in personal  
injury or property damage.  
Operate generator only on level surfaces and where it will not be  
exposed to excessive moisture, dirt, dust or corrosive vapors.  
Gasoline is highly FLAMMABLE and its vapors are  
EXPLOSIVE. Do not permit smoking, open flames, sparks or  
heat in the vicinity while handling gasoline. Avoid spilling gasoline on  
a hot engine. Comply with all laws regulating storage and handling  
of gasoline.  
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ƽ
CAUTION  
ƽ
After this heading, you can read instructions that, if  
not strictly complied with, could result in damage to  
equipment and/or property.  
Never add fuel while unit is running.  
Do not overfill the fuel tank. Always allow room for fuel expansion. If  
tank is overfilled, fuel can overflow onto a hot engine and cause  
FIRE or an EXPLOSION.  
NOTE: After this heading, you can read explanatory statements that  
require special emphasis. These safety warnings cannot eliminate the  
hazards that they indicate. Common sense and strict compliance with  
the special instructions while performing the service are essential to  
preventing accidents.  
Never store generator with fuel in tank where gasoline vapors might  
reach an open flame, spark or pilot light (as on a furnace, water  
heater or clothes dryer). FIRE or EXPLOSION may result.  
Four commonly used safety symbols accompany the DANGER,  
WARNING and CAUTION blocks. The type of information each  
indicates follows:  
Generator exhaust gases contain DEADLY carbon monoxide  
gas.This dangerous gas, if breathed in sufficient concentrations, can  
cause unconsciousness or even death. Operate this equipment only  
in the open air where adequate ventilation is available.  
ƽ This symbol points out important safety  
information that, if not followed, could endanger  
personal safety and/or property of you and others.  
Allow at least 2 feet of clearance on all sides of generator or you  
could damage the unit. Never operate the unit inside any room or  
enclosure where the free flow of cooling air into and out of the unit  
might be obstructed. Review “Cold Weather Operation” on page 12.  
Ʒ This symbol points out potential explosion hazard.  
Ƹ This symbol points out potential fire hazard.  
This symbol points out potential electrical shock  
hazard.  
The operator is responsible for proper and safe use of  
the equipment. We strongly recommend that the  
operator read this Owner’s Manual and thoroughly  
1
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IMPORTANT SAFETY INSTRUCTIONS  
Commercial-Industrial-Residential Portable Generator System  
SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted  
ƽnear the unit's installation site. Safety should be stressed to all operators and potential operators of this equipment.  
Never start or stop the unit with electrical loads connected to  
receptacles AND with connected devices turned ON. Start the  
engine and let it stabilize before connecting electrical loads.  
Disconnect all electrical loads before shutting down the generator.  
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ƽ
DANGER  
ƽ
Despite the safe design of this generator, operating this  
equipment imprudently, neglecting its maintenance  
or being careless can cause possible injury or death.  
Permit only responsible and capable persons to  
operate or maintain this equipment.  
Do not insert objects through unit's cooling slots.  
Never operate generator: in rain; in any enclosed  
compartment; if connected electrical devices overheat; if electrical  
output is lost; if engine or generator sparks; if flames or smoke are  
observed while unit is running; if unit vibrates excessively.  
Potentially lethal voltages are generated by these  
machines. Ensure all steps are taken to render  
the machine safe before attempting to work on  
the generator.  
Note:Your generator is equipped with a spark arrestor  
muffler. The spark arrestor must be maintained in  
effective working order by the owner/ operator. In the  
State of California, a spark arrestor is required by law  
(Section 4442 of the California Public Resources  
Code). Other states may have similar laws. Federal  
laws apply on federal lands.  
ƽ Parts of the generator are rotating and/or hot during  
operation. Exercise care near running generators.  
ƽ GENERAL HAZARDS ƽ  
For safety reasons, GENERAC® recommends that the installation,  
initial start-up and maintenance of this equipment is carried out by  
a GENERAC®/GUARDIAN® Authorized Dealer.  
The engine exhaust fumes contain carbon monoxide, which can be  
DEADLY. This dangerous gas, if breathed in sufficient  
concentrations, can cause unconsciousness or even death. This  
exhaust system must be installed properly, in strict compliance with  
applicable codes and standards. Following installation, you must do  
nothing that might render the system unsafe or in noncompliance  
with such codes and standards.  
Keep hands, feet, clothing, etc., away from drive belts, fans, and  
other moving or hot parts. Never remove any drive belt or fan guard  
while the unit is operating.  
Adequate, unobstructed flow of cooling and ventilating air is critical  
to correct generator operation. Do not alter the installation or permit  
even partial blockage of ventilation provisions, as this can seriously  
affect safe operation of the generator. The generator MUST be  
operated outdoors.  
When working on this equipment, remain alert at all times. Never  
work on the equipment when you are physically or mentally fatigued.  
Inspect the generator regularly, and contact your nearest  
GENERAC®/GUARDIAN® Authorized Dealer for parts needing repair  
or replacement.  
Before performing any maintenance on the generator, disconnect its  
battery cables to prevent accidental start up. Disconnect the cable  
from the battery post indicated by a NEGATIVE, NEG or (–) first.  
Reconnect that cable last.  
Never use the generator or any of its parts as a step. Stepping on  
the unit can stress and break parts, and may result in dangerous  
operating conditions from leaking exhaust gases, fuel leakage, oil  
leakage, etc.  
Study these SAFETY RULES carefully before installing, operating or  
servicing this equipment. Become familiar with this Owner’s Manual and  
with the unit. The generator can operate safely, efficiently and reliably  
only if it is properly installed, operated and maintained. Many accidents  
are caused by failing to follow simple and fundamental rules or  
precautions.  
GENERAC®  
cannot  
possibly  
anticipate  
every  
possible  
circumstance that might involve a hazard. The warnings in this  
WARNING:  
The engine exhaust from this product  
contains chemicals known to the state  
of California to cause cancer, birth  
defects or other reproductive harm.  
WARNING:  
This product contains or emits chemicals  
known to the state of California to cause  
cancer, birth defects or other reproductive harm.  
manual, and on tags and decals affixed to the unit are, therefore,  
not all-inclusive. If you use a procedure, work method or operating  
technique GENERAC® does not specifically recommend, you must  
satisfy yourself that it is safe for you and others. You also must make  
sure the procedure, work method or operating technique that you  
choose does not render the generator unsafe.  
2
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IMPORTANT SAFETY INSTRUCTIONS  
Commercial-Industrial-Residential Portable Generator System  
ELECTRICAL HAZARDSᏘ  
Ʒ EXPLOSION HAZARDS Ʒ  
All generators covered by this manual produce dangerous  
electrical voltages and can cause fatal electrical shock. Utility  
Do not smoke around the generator. Wipe up any fuel or oil  
spills immediately. Ensure that no combustible materials are  
left on or near the generator, as FIRE or EXPLOSION may  
result. Keep the area surrounding the generator clean and  
free from debris.  
power delivers extremely high and dangerous voltages as  
does the generator when it is in operation. Avoid contact with  
bare  
running. Ensure all appropriate covers, guards and barriers  
are in place before operating the generator. If you must work  
around an operating unit, stand on an insulated, dry surface  
to reduce shock hazard.  
wires, terminals, connections, etc., while the unit is  
Gasoline is extremely EXPLOSIVE.  
STANDARDS INDEX  
In the absence of pertinent standards, codes, regulations and laws, the  
published information listed below may be used as a guideline for  
operation of this equipment.  
Do not handle any kind of electrical device while standing in water,  
while barefoot, or while hands or feet are wet. DANGEROUS  
ELECTRICAL SHOCK MAY RESULT.  
1. NFPA No. 70, NFPA HANDBOOK OF NATIONAL  
CODE.  
ELECTRIC  
The National Electrical Code (NEC) requires the frame and external  
electrically conductive parts of the generator to be connected to an  
approved earth ground. Local electrical codes also may require  
proper grounding of the generator electrical system.  
2. Article X, NATIONAL BUILDING CODE, available from the American  
Insurance Association, 85 John Street, New York, N.Y. 10038.  
In case of accident caused by electric shock, immediately shut down  
the source of electrical power. If this is not possible, attempt to free  
the victim from the live conductor. AVOID DIRECT CONTACT  
WITH THE VICTIM. Use a non-conducting implement, such as  
a rope or board, to free the victim from the live conductor. If the victim  
is unconscious, apply first aid and get immediate medical help.  
3. AGRICULTURAL WIRING HANDBOOK, available from the Food  
and Energy Council, 909 University Avenue, Columbia, MO 65201.  
4. ASAE EP-3634, INSTALLATION AND MAINTENANCE OF FARM  
STANDBY ELECTRICAL SYSTEMS, available from the American  
Society of Agricultural Engineers, 2950 Niles Road, St. Joseph, MI  
49085.  
Never wear jewelry when working on this equipment. Jewelry can  
conduct electricity resulting in electric shock, or may get caught in  
moving components causing injury.  
5. NFPA No. 30, FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE.  
Ƹ FIRE HAZARDS Ƹ  
For fire safety, the generator must be operated and maintained  
properly. Operation always must comply with applicable codes,  
standards, laws and regulations. Adhere strictly to local, state and  
national electrical and building codes. Comply with regulations the  
Occupational Safety and Health Administration (OSHA) has  
established. Also, ensure that the generator is operated in  
accordance  
with  
the  
manufacturer’s  
instructions  
and  
recommendations. Do not alter the construction of generator or  
change controls which might create an unsafe operating condition.  
Keep  
a
fire extinguisher near the generator at all times.  
Extinguishers rated “ABC” by the National Fire Protection  
Association are appropriate for use on the standby electric system.  
Keep the extinguisher properly charged and be familiar with its use.  
If you have any question pertaining to fire extinguishers, consult your  
local fire department.  
3
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Section 1 – General Information  
Commercial-Industrial-Residential Portable Generator System  
1.1 UNPACKING  
1.2 ASSEMBLY  
Set the palleted carton on a rigid flat surface.  
The generator requires some assembly prior to using it. If problems  
arise when assembling the generator, please call the Generator  
Helpline at 1-800-333-1322.  
Remove staples along bottom of carton that fasten carton to pallet.  
Open carton from top.  
Remove all packaging material.  
Remove separate accessory box.  
Lift carton off the generator.  
1.2.1 ASSEMBLING THE WHEEL KIT  
The wheel kit is designed to greatly improve the portability of the  
generator. A socket wrench with a 9/16” socket, a 1/2” socket, a 1/2”  
wrench and a pair of pliers are the tools that will be needed for  
assembly of the wheel kit.  
Remove generator from shipping pallet by removing bolts through  
the shipping brackets.  
Note:The wheel kit is not intended for over-the-road use.  
Figure 1 - Bracket Removal  
Refer to Figure 2 shown on opposite page and install the wheel kit  
as follows:  
Place the generator on a hard flat surface.  
Stand at the engine end of the unit and gently tilt the generator  
forward, high enough to place wooden blocks beneath the cradle.  
This will allow space to install the wheel assemblies.  
Shipping  
Bracket  
(x4)  
Attach an axle bracket assembly with attached sleeve to either side  
of the frame. Ensure the sleeve faces outward.  
Slide the axle through the sleeves on the axle brackets.  
Slide one wheel with flat washer to the outside and a spacer to the  
inside onto each end of the axle. Make sure the air inflation valve  
on the wheel is facing outward.  
Insert retaining pins and using pliers, bend out the ends to prevent  
the pins from falling out of the axle. Remove the wooden blocks.  
1.1.1 ACCESSORY BOX  
Check all contents. If any parts are missing or damaged locate an  
authorized dealer at 1-800-333-1322.  
1.2.2 ASSEMBLING THE HANDLE  
Contents include:  
Attach the handle by aligning one side of the handle on the cradle,  
then spread the handle around the cradle and let it spring into place.  
Secure the handle to the frame using the 5/16’ hex head bolts  
provided. Check each fastener to ensure that it is secure.  
Owner’s Manual  
Bolt-on tubular handle  
Wheel Axle  
Using the handle, lift the unit high enough to place wooden blocks  
under the unit. Attach the front support foot to the underside of the  
cradle using the 3/8” carriage bolts provided.  
2 – Pneumatic Wheels  
2 – Axle Bracket Assemblies  
2 – Washers  
Remove the shipping brackets from the cradle, if not already done  
so.  
2 – Wheel Spacers  
2 – Cotter Pins  
Bolt-on Foot  
6 – Carriage Bolts, Washers, Nuts  
Battery Charge Cable  
Spark Plug Wrench  
2 Spark Plugs.  
Air Filter  
Pre-cleaner  
4
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Section 1 - General Information  
Commercial-Industrial-Residential Portable Generator System  
Figure 2 - Handle Assembly  
CAPSCREW,  
5/16 X 2-1/2  
FLAT WASHER  
FLAT WASHER  
LOCK WASHER  
LOCK NUT  
SPACER  
WHEEL  
FLAT WASHER  
RETAINING PIN  
AXLE  
LOCK  
NUT  
HANDLE  
CARRIAGE BOLT, 3/8 X 1  
CAPSCREW, 5/16 X 1  
FRONT FOOT  
ASSEMBLY  
LOCK WASHER  
FLAT WASHER  
LOCK NUT  
Figure 3 - Battery Connections  
1.2.3 BATTERY CONNECTION  
The battery shipped with the generator has been provided fully  
charged. Caution must be taken when connecting the battery.  
Negative  
Cable  
Positive  
Cable  
Cut the tie wrap cable holding the RED and BLACK battery cables  
to the stator.  
Connect the RED battery cable to the battery Positive terminal (+).  
After making sure that the connection is tight, slip the rubber boot  
over the terminal connection.  
Connect the BLACK battery cable to the battery Negative terminal  
(–). Make sure the connection is tight.  
Double check all connections to ensure they are in the correct  
location and secure. See Figure 3 at right.  
5
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Section 2 – Operation  
Commercial-Industrial-Residential Portable Generator System  
1) 12 Volt DC, 10 Amp Receptacle This receptacle allows  
OPERATION  
the capability to recharge a 12 volt DC storage battery with  
provided battery charge cables.  
2.1 KNOW THE GENERATOR  
Read the Owner’s Manual and Safety Rules before  
operating this generator.  
2) 120 Volt AC, 20 Amp, Duplex Receptacle Supplies  
electrical power for the operation of 120 Volt AC, 20 Amp,  
single-phase, 60 Hz electrical lighting, appliance, tool and  
motor loads.  
Compare the generator to this illustration to become familiarized with  
the locations of various controls and adjustments. Save this manual for  
future reference.  
3) 120 Volt AC, 20A Duplex GFCI Receptacle –  
Supplies ground fault protected electrical power for operation of  
120 volt AC 20 amp, single-phase, 60 Hz electric lighting,  
appliances, tools and motor loads.  
Figure 4 - Control Panel  
4) 120 Volt AC, 30 Amp Locking Receptacle Supplies  
electrical power for the operation of 120 Volt AC, 30 Amp, single-  
phase, 60 Hz electrical lighting, appliance, tool and motor loads.  
2
3
13  
1
5) 120/240 Volt AC, 30 Amp Locking Receptacle –  
Supplies electrical power for the operation of 120 and/or 240 Volt  
AC, 30 Amp, single-phase, 60 Hz, electrical lighting, appliance,  
tool and motor loads.  
20A  
GFCI  
T E S T  
R E S E T  
TEST  
RESET  
12Vdc  
IDLE  
CONTROL  
6) 120/240 Volt AC, 50 Amp Receptacle Supplies  
electrical power for the operation of 120/240 Volt AC, 50 Amp,  
single-phase, 60 Hz, welder or motor loads.  
50A  
20A  
ON  
OFF  
120V  
20A  
120V  
20A  
GFCI  
10A  
120V  
30A  
CIRCUIT BREAKERS - PUSH TO RESET  
7) Air Cleaner Filters intake air as it is drawn into the engine.  
8) Choke Knob Used when starting a cold engine.  
30A  
30A  
5
30A  
4
9) Winter / Summer Valve See “Cold Weather Operation.”  
120V/240V  
30A  
120V/240V  
50A  
(Section 2, page 12.)  
30A  
120V  
30A  
10) Circuit Breakers (AC) – Each receptacle is provided with a  
push-to-reset circuit breaker to protect the generator against  
electrical overload.  
6
10  
11) Fuel Tank Tank holds 16 U.S. gallons of fuel.  
12) Grounding Lug Ground the generator to an approved earth  
Figure 5 - Generator Controls  
ground here. See page 9 for details.  
13) Idle Control Switch The idle control runs the engine at  
normal (high) speeds when there is an electrical load present and  
runs the engine at idle (low) speeds when a load is not present.  
11  
7
14) Start/Run/Stop Switch Controls the operation of the  
generator.  
15) Oil Fill Use this point to add oil to engine.  
Figure 6 - Engine Control Panel  
15  
12  
14  
8
9
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Section 2 – Operation  
Commercial-Industrial-Residential Portable Generator System  
Figure 8 - 120 VAC, 20 Amp GFCI Receptacle  
2.2 CORD SETS AND CONNECTION  
PLUGS  
2.2.1 AC, 20 AMP, DUPLEX RECEPTACLE  
This is a 120 Volt outlet protected against overload by a 20 Amp push-to-  
reset circuit breaker. Use each socket to power 120 Volt AC, single phase,  
60 Hz electrical loads requiring up to a combined 2400 watts (2.4 kW) or  
20 Amps of current. Use only high quality, well-insulated, 3-wire grounded  
cord sets rated for 125 Volts at 20 Amps (or greater).  
Keep extension cords as short as possible, preferably less than 15 feet  
long, to prevent voltage drop and possible overheating of wires.  
Figure 7 - 120 Volt AC, 20 Amp, Duplex Receptacle  
Testing the GFCI: Test the GFCI outlet every month as follows:  
Plug a test lamp into the receptacle.  
Start the generator, the test lamp should be on.  
Press the “Test” button located on the front of the receptacle to trip  
the device.  
This should stop the flow of electricity making the lamp shut off. The  
yellow trip indicator should now be on.  
To restore the flow of electricity, press the “Reset” button on the front  
of the receptacle. If the GFCI does not perform in this manner, do  
not use the receptacle. Contact a local service dealer.  
This outlet is protected against overload by a 20A push-to-reset  
circuit breaker. Use the outlet to power 120V AC, single-phase, 60  
Hz, electrical loads requiring up to a combined 2400 watts (2.4 kW)  
or 20 amps of current.  
2.2.2 120V AC, 20 AMP, GFCI RECEPTACLE  
This unit is equipped with a ground fault circuit interrupter (GFCI). This  
device meets applicable federal, state and local codes.  
2.2.3 120V AC, 30 AMP RECEPTACLE  
A GFCI receptacle is different from conventional receptacles. In the  
event of a ground fault, a GFCI will trip and quickly stop the flow of  
electricity to prevent serious injury.  
Use a NEMA L5-30 plug with this receptacle. Connect a 3-wire cord set  
rated for 125 Volts AC at 30 Amps (or greater) to the plug.  
Definition: Instead of following its normal safe path, electricity passes  
through a persons body to reach the ground. For example, a defective  
appliance can cause a ground fault.  
A GFCI receptacle does NOT protect against circuit overloads, short  
circuits, or shocks. For example, electric shock can still occur if a person  
touches charged electrical wires while standing on a non-conducting  
surface, such as a wood floor.  
Figure 9 - 120 VAC, 30 Amp Receptacle  
7
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Section 2 – Operation  
Commercial-Industrial-Residential Portable Generator System  
2.2.5 12 VOLT DC, 10 AMP RECEPTACLE  
This receptacle allows you to recharge a 12 Volt automotive or utility  
style storage battery with the battery charge cables provided. This  
receptacle can not recharge 6 Volt batteries and can not be used to  
crank an engine having a discharged battery. See the section "Charging  
a Battery" (page 12) before attempting to recharge a battery.  
Figure 11 - 12 Volt DC, 10 Amp Receptacle  
120V  
30A  
Use this receptacle to operate 120 Volt AC, 60 Hz, single phase loads  
requiring up to 3600 watts (3.6 kW) of power at 30 Amps. The outlet is  
protected by a 30 Amp push-to-reset circuit breaker.  
2.2.4 120/240V AC, 30 AMP RECEPTACLE  
2.2.6 120/240 VOLT AC, 50 AMP RECEPTACLE  
Use a NEMA L14-30 plug with this receptacle. Connect a suitable 4-  
wire grounded cord set to the plug and to the desired load. The cord set  
should be rated for 250 Volts AC at 30 Amps (or greater).  
Use a NEMA 14-50 plug with this receptacle. Connect a 4-wire cord set  
rated for 250 Volts AC at 50 Amps to the plug.  
Figure 12 - 120/240 VAC, 50 Amp Receptacle  
Figure 10 - 120/240 VAC, 30 Amp Receptacle  
120V/240V  
50A  
120V/240V  
30A  
Use this receptacle to operate 120 Volt AC, 60 Hz, single phase loads  
requiring up to 3600 watts (3.6 kW) of power at 30 Amps or 240 Volt AC,  
60 Hz, single phase loads requiring up to 7200 watts (7.2 kW) of power  
at 30 Amps.The outlet is protected by two 30 Amp push-to-reset circuit  
breakers.  
Use this receptacle to operate 120/240 Volt AC, 60 Hz electrical loads  
requiring up to 12,000 watts (12.0 kW) of power. This receptacle is  
protected by a 50 Amp 2-pole circuit breaker.  
8
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Section 2 – Operation  
Commercial-Industrial-Residential Portable Generator System  
2.3.2 CONNECTING ELECTRICAL LOADS  
2.3 HOW TO USE THE GENERATOR  
If you have any problems operating your generator, please call the  
generator helpline at 1-800-333-1322.  
DO NOT connect 240 Volt loads to 120 Volt receptacles. DO NOT  
connect 3-phase loads to the generator. DO NOT connect 50 Hz  
loads to the generator.  
Let engine stabilize and warm up for a few minutes after starting.  
2.3.1 GROUNDING THE GENERATOR  
Plug in and turn on the desired 120 or 240 Volt AC, single phase, 60  
Hz electrical loads.  
The National Electrical Code requires that the frame  
and external electrically conductive parts of this  
generator be properly connected to an approved earth  
ground. Local electrical codes may also require proper grounding of  
the unit. For that purpose, generally, connecting a No. 10 AWG  
(American Wire Gauge) stranded copper wire to the grounding wing nut  
and to an earth-driven copper or brass grounding rod (electrode)  
provides adequate protection against electrical shock. However, local  
codes may vary widely. Consult with a local electrician for  
grounding requirements in your area.  
Add up the rated watts (or amps) of all loads to be connected at one  
time. This total should not be greater than (a) the rated  
wattage/amperage capacity of the generator or (b) circuit breaker  
rating of the receptacle supplying the power. See "Don't Overload  
the Generator" below.  
2.4 DON’T OVERLOAD THE  
GENERATOR  
Figure 13 - Grounding the Generator  
Overloading a generator in excess of its rated wattage capacity can  
result in damage to the generator and to connected electrical devices.  
Observe the following to prevent overloading the unit:  
Add up the total wattage of all electrical devices to be connected at  
one time. This total should NOT be greater than the generator's  
wattage capacity.  
Generator Ground Lug  
The rated wattage of lights can be taken from light bulbs. The rated  
wattage of tools, appliances and motors can usually be found on a  
data plate or decal affixed to the device.  
If the appliance, tool or motor does not give wattage, multiply volts  
times ampere rating to determine watts (volts x amps = watts).  
Some electric motors, such as induction types, require about three  
times more watts of power for starting than for running.This surge of  
power lasts only a few seconds when starting such motors. Make  
sure you allow for this high starting wattage when selecting electrical  
devices to connect to your generator:  
Proper grounding of the generator will help prevent  
electrical shock in the event of a ground fault condition in the  
generator or in connected electrical devices. Proper grounding also  
helps dissipate static electricity, which often builds up in ungrounded  
devices.  
1. Figure the watts needed to start the largest motor.  
2. Add to that figure the running watts of all other connected loads.  
The Wattage Reference Guide on page 10 is provided to assist you in  
determining how many items your generator can operate at one time.  
(Note: All figures are approximate. See data plate on appliance for  
wattage requirements.)  
9
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Section 2 – Operation  
Commercial-Industrial-Residential Portable Generator System  
2.5 WATTAGE REFERENCE GUIDE  
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Running Watts  
Hedge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .450  
Impact Wrench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500  
Iron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
*Jet Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .800  
Lawn Mower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
Light Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100  
Microwave Oven . . . . . . . . . . . . . . . . . . . . . . . . .700 to 1000  
*Milk Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1100  
Oil Burner on Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . .300  
Oil Fired Space Heater (140,000 Btu) . . . . . . . . . . . . . . .400  
Oil Fired Space Heater (85,000 Btu) . . . . . . . . . . . . . . . .225  
Oil Fired Space Heater (30,000 Btu) . . . . . . . . . . . . . . . .150  
*Paint Sprayer, Airless (1/3 HP) . . . . . . . . . . . . . . . . . . . .600  
Paint Sprayer, Airless (handheld) . . . . . . . . . . . . . . . . . . .150  
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 to 200  
*Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .700  
Slow Cooker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200  
*Submersible Pump (1-1/2 HP) . . . . . . . . . . . . . . . . . . .2800  
*Submersible Pump (1 HP) . . . . . . . . . . . . . . . . . . . . . .2000  
*Submersible Pump (1/2 HP) . . . . . . . . . . . . . . . . . . . . .1500  
*Sump Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .800 to 1050  
*Table Saw (10") . . . . . . . . . . . . . . . . . . . . . . . .1750 to 2000  
Television . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 to 500  
Toaster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1000 to 1650  
Weed Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500  
*Allow 3 times the listed watts for starting these devices.  
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Running Watts  
*Air Conditioner (12,000 Btu) . . . . . . . . . . . . . . . . . . . . .1700  
*Air Conditioner (24,000 Btu) . . . . . . . . . . . . . . . . . . . . .3800  
*Air Conditioner (40,000 Btu) . . . . . . . . . . . . . . . . . . . . .6000  
Battery Charger (20 Amp) . . . . . . . . . . . . . . . . . . . . . . . .500  
Belt Sander (3") . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1000  
Chain Saw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
Circular Saw (6-1/2") . . . . . . . . . . . . . . . . . . . . . .800 to 1000  
*Clothes Dryer (Electric) . . . . . . . . . . . . . . . . . . . . . . . .5750  
*Clothes Dryer (Gas) . . . . . . . . . . . . . . . . . . . . . . . . . . . .700  
*Clothes Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1150  
Coffee Maker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1750  
*Compressor (1 HP) . . . . . . . . . . . . . . . . . . . . . . . . . . . .2000  
*Compressor (3/4 HP) . . . . . . . . . . . . . . . . . . . . . . . . . .1800  
*Compressor (1/2 HP) . . . . . . . . . . . . . . . . . . . . . . . . . .1400  
Curling Iron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .700  
*Dehumidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .650  
Disc Sander (9") . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
Edge Trimmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500  
Electric Blanket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400  
Electric Nail Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
Electric Range (per element) . . . . . . . . . . . . . . . . . . . . .1500  
Electric Skillet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1250  
*Freezer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .700  
*Furnace Fan (3/5 HP) . . . . . . . . . . . . . . . . . . . . . . . . . . .875  
*Garage Door Opener . . . . . . . . . . . . . . . . . . . . . .500 to 750  
Hair Dryer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1200  
Hand Drill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250 to 1100  
Above 40°F, use SAE 10W-30 or SAE 30.  
Below 40°F, use synthetic 5W-20 or 5W-30.  
2.6 BEFORE STARTING THE  
GENERATOR  
Although multi-viscosity oils (5W-30, 10W-30, etc.) improve starting in  
cold weather, these multi-viscosity oils will result in increased oil  
consumption when used above 32°F. Check your engine oil level more  
frequently to avoid possible damage from running low on oil.  
Prior to operating the generator, engine oil and gasoline will need to be  
added, as follows:  
Place generator on a level surface.  
2.6.1 ADDING ENGINE OIL  
Clean area around oil fill and remove oil fill cap and dipstick.  
Wipe dipstick clean.  
NOTE: When adding oil to the engine crankcase in  
the future, use only high quality detergent oil rated  
with API service classification SF or SG SAE 30  
weight. Use no special additives.  
Slowly fill engine with oil through the oil fill opening until it reaches  
the full mark on the dipstick. Stop filling occasionally to check oil  
level. DO NOT OVERFILL.  
Select the oil’s viscosity grade according to the expected operating  
temperature. Do not use SAE 10W-40.  
Install dipstick. Install oil fill cap and finger tighten securely.  
Check engine oil level before starting each time thereafter.  
10W-30, SSAE 30  
Syntthheettic 5WW-20, 55W-30  
ºF -20  
ºC -30  
0
20  
32  
0
40  
60  
80  
100  
40  
-20  
-10  
10  
20  
30  
Temperature Range of Expected Use  
10  
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Section 2 — Operation  
Commercial-Industrial-Residential Portable Generator System  
Figure 15 - Fuel Shut-off Valve  
2.6.2 ADDING GASOLINE  
-------------  
-------------  
ƽ
WARNING  
ƽ
ON  
OFF  
Ʒ WARNING: Never fill fuel tank indoors. Never fill  
fuel tank when engine is running or hot. DO NOT  
light a cigarette or smoke when filling the fuel  
tank.  
FUEL SHUTOFF  
ƽ Caution: Do not overfill the fuel tank. Always leave  
room for fuel expansion.  
Use regular UNLEADED gasoline with the generator engine. Do not  
use premium gasoline. Do not mix oil with gasoline.  
Clean area around fuel fill cap, remove cap.  
Slowly add unleaded regular gasoline to fuel tank. Be careful not  
to overfill. Allow about 1/2" of tank space for fuel expansion, as  
shown here.  
• Locate the Idle Control ON/OFF switch on the control panel and set it  
to the “OFF” position.  
Install fuel cap and wipe up any spilled gasoline.  
Figure 16 - Idle Control Switch  
Figure 14 - Fuel Tank  
IDLE  
CONTROL  
Fuel Tank  
Fuel  
1/2 inch  
MPORTANT: It is important to prevent gum deposits from forming in  
fuel system parts such as the carburetor, fuel hose or tank during  
storage. Alcohol-blended fuels (called gasohol, ethanol or methanol)  
can attract moisture, which leads to separation and formation of acids  
during storage. Acidic gas can damage the fuel system of an engine  
while in storage. To avoid engine problems, the fuel system should be  
emptied before storage of 30 days or longer. See "Storage" on page 18.  
Never use engine or carburetor cleaner products in the fuel tank as  
permanent damage may occur.  
ON  
OFF  
2.7 TO START THE ENGINE  
WARNING! Never start or stop engine with electrical devices  
plugged into the receptacles AND devices turned on.  
Unplug all electrical loads from the unit's receptacles before starting  
the engine.  
Make sure the unit is in a level position.  
Open the fuel shut-off valve.  
11  
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Section 2 — Operation  
Commercial-Industrial-Residential Portable Generator System  
• Move engine CHOKE knob to “Full Choke” position.  
2.9 AUTOMATIC IDLE CONTROL  
17 - Full Choke Position  
This feature is designed to greatly improve fuel economy. When this  
switch is turned On,the engine will only run at its normal fast  
governed engine speed when electrical load is connected. When the  
load is removed, the engine will run at a reduced speed. With the switch  
Off,the engine runs at the normal fast engine speed all the time.  
Always have the switch OFF when starting and  
stopping the engine.  
2.10 COLD WEATHER OPERATION/  
DE-ICER  
Under certain weather conditions (temperatures below 40° F (4° C) and  
a high dew point), the engine may experience icing of the carburetor  
and/or the crankcase breather system. To eliminate this problem, this  
generator engine is fitted with a winter/summer valve. this directs hot  
air into the carburetor during cold weather operation. Always make sure  
the winter/summer valve is in the correct location relative to the weather  
conditions.  
To start engine, press and hold the Start/Run/Stop switch in the  
“Start” position. The engine will crank and attempt to start. When  
the engine starts, release the switch to the run position.  
When the engine starts, move choke knob to “1/2 Choke” position until the  
engine runs smoothly and then to “Runposition.If engine falters, move choke  
knob to “1/2 Choke” position until the engine runs smoothly and then to “Run”  
position.  
2.11 LOW OIL PRESSURE SHUTDOWN  
SYSTEM  
The engine is equipped with a low oil pressure sensor that shuts down  
the engine automatically when the oil pressure drops below 10 psi. If  
the engine shuts down by itself and the fuel tank has enough gasoline,  
check engine oil level.  
Note: If engine fires, but does not continue to run,  
move choke lever to “Full Choke” and repeat starting  
instructions.  
2.8 STOPPING THE ENGINE  
2.11.1 INITIAL START-UP  
Shut off all loads, then unplug the electrical loads from generator  
panel receptacles. Never start or stop the engine with electrical  
devices plugged in and turned on.  
A delay built into the low oil shutdown system allows oil pressure to  
build during starting. The delay allows the engine to run for about 10  
seconds before sensing oil pressure.  
Turn “Off” the Idle Control switch (if on).  
Let engine run at no-load for several minutes to stabilize the internal  
temperatures of engine and generator.  
2.11.2 SENSING LOW OIL PRESSURE  
If the system senses low oil pressure during operation, the engine shuts  
down.  
Move Start/Run/Stop switch to “Off” position.  
Close fuel valve.  
2.11.3 RESTARTING  
IMPORTANT: Do not overload the generator. Also, do not overload  
individual panel receptacles. These outlets are protected against  
overload with push-to-reset-type circuit breakers. If amperage rating of  
any circuit breaker is exceeded, that breaker opens and electrical  
output to that receptacle is lost. Read “Don’t Overload the Generator”  
on page 9 carefully.  
If you try to restart the engine within 10 seconds after it shuts down, the  
engine may NOT start. The system needs 5 to 10 seconds to reset.  
If you do restart the engine after such a shutdown and have not  
corrected the low oil pressure, the engine runs for about 10 seconds as  
described above and then stops.  
12  
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Section 2 — Operation  
Commercial-Industrial-Residential Portable Generator System  
2.12 CHARGING A BATTERY  
Ʒ DANGER! Storage batteries give off explosive hydrogen gas  
while recharging. An explosive mixture will remain around the  
battery for a long time after it has been charged. The slightest  
spark can ignite the hydrogen and cause an explosion. Such an  
explosion can shatter the battery and cause blindness or other  
serious injury.  
ƽ DANGER! Do not permit smoking, open flame, sparks or any  
other source of heat around a battery. Wear protective goggles,  
rubber apron and rubber gloves when working around a battery.  
Battery electrolyte fluid is an extremely caustic sulfuric acid  
solution that can cause severe burns. If spill occurs flush area with  
clear water immediately.  
Your generator has the capability of recharging a discharged 12 Volt  
automotive or utility style storage battery. Do not use the unit to  
charge any 6 Volt batteries. Do not use the unit to  
crank an engine having a discharged battery.  
To recharge 12 Volt batteries, proceed as follows:  
Check fluid level in all battery cells. If necessary, add ONLY distilled  
water to cover separators in battery cells. Do not use tap  
water.  
If the battery is equipped with vent caps, make sure they are  
installed and are tight.  
If necessary, clean battery terminals.  
Connect battery charge cable connector plug to panel receptacle  
identified by the words "12-VOLT D.C."  
Connect battery charge cable clamp with red handle to the positive  
(+) battery terminal.  
Connect battery charge cable clamp with black handle to the  
negative (-) battery terminal.  
Start engine. Let the engine run while battery recharges. Engine idle  
control switch must be in off position for battery charging.  
When battery has charged, shut down engine.  
Note: Use an automotive hydrometer to test battery  
state of charge and condition. Follow the hydrometer  
manufacturer's instructions carefully. Generally, a  
battery is considered to be at 100% state of charge  
when specific gravity of its fluid (as measured by  
hydrometer) is 1.260 or higher.  
13  
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Section 3 — Maintenance  
Commercial-Industrial-Residential Portable Generator System  
3.1 MAINTENANCE SCHEDULE  
Follow the calendar intervals. More frequent service is required when operating in adverse conditions noted below.  
Operation Maintenance  
Daily  
Every Season  
Every Season  
Every Season  
Check Oil Level  
Service Air Pre-Cleaner  
Change Oil and Oil Filter‡  
**  
*  
Clean Spark Arrestor Screen  
Adjust Valve Clearance  
Service Air Cleaner  
**  
Replace Spark Plugs  
*
**  
Change oil after first 8 hours of operation then every season.  
Change oil and oil filter every month when operating under heavy load or in high temperatures.  
Clean more often under dirty or dusty operating conditions. Replace air cleaner parts if very dirty..  
PRODUCT SPECIFICATIONS  
3.2.1 GENERATOR SPECIFICATIONS  
MODEL  
GPS 12500  
004451-1  
12.5 kW  
GPS 15000  
004582-1  
15.0 kW  
Model #  
Rated Max. Power  
Surge Power  
18.75 kW  
120/240  
22.5 kW  
Rated AC Voltage  
Rated Max AC Load  
Current @ 240V  
Current @ 120V  
Rated Frequency  
Phase  
120/240  
52.0 Amps  
62.5 Amps  
104.0 Amps  
125.0 Amps  
60 Hz @3600 RPM  
Single Phase  
12 Volts  
Rated DC Voltage  
Rated Max DC Load  
Current @ 12 Volts  
10 Amperes  
3.2.2 ENGINE SPECIFICATIONS  
Rated Horsepower  
@ 3600 RPM  
Displacement  
Spark Plug Type  
Spark Plug Gap  
Gasoline Capacity  
Oil Type  
27  
30  
760cc  
992cc  
Champion RC12YC or Equivalent  
0.030 inch or (0.76 mm)  
16 U.S. gallons  
Summer – SAE 30 or 10W-30 Winter – Synthetic 5W-20 or 5W-30  
w/Filter Change = 1.5 Qts. w/o Filter Change = 1.2 Qts.  
10 Hours / 1.6 gallons per hour  
Oil Capacity  
Run Time/Fuel  
Consumption-1/2 Load  
14  
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Section 3 — Maintenance  
Commercial-Industrial-Residential Portable Generator System  
3.3.3 ENGINE MAINTENANCE  
3.3 GENERAL RECOMMENDATIONS  
DANGER! When working on the generator, always disconnect  
negative cable from battery. Also disconnect spark plug wires from  
spark plug and keep wire away from spark plug.  
The warranty of the generator does not cover items that have been  
subjected to operator abuse or negligence.To receive full value from the  
warranty, the operator must maintain the generator as instructed in this  
manual.  
3.3.4 CHECKING OIL LEVEL  
See the “BEFORE STARTING THE GENERATOR” section on page 10  
for information on checking the oil level. The oil level should be checked  
before each use, or at least every eight hours of operation. Keep the oil  
level maintained.  
Some adjustments will need to be made periodically to properly  
maintain the generator.  
All adjustments in the Maintenance section (3) of this manual should be  
made at least once each season. Follow the requirements in the  
"Maintenance Schedule" chart on page 14.  
3.3.5 CHANGING THE OIL AND OIL FILTER  
Change the oil and filter after the first eight hours of operation. Change  
the oil every 100 hours thereafter. If you are running this unit under dirty  
or dusty conditions, or in extremely hot weather, change the oil more  
often.  
NOTE: Once a year you should replace the spark plug  
and replace the air filter. A new spark plug and clean  
air filter assure proper fuel-air mixture and help your  
engine run better and last longer.  
Use the following instructions to change the oil while  
the engine is still warm:  
3.3.1 GENERATOR MAINTENANCE  
Clean area around oil drain hose and plug.  
Generator maintenance consists of keeping the unit clean and dry.  
Operate and store the unit in a clean dry environment where it will not  
be exposed to excessive dust, dirt, moisture or any corrosive vapors.  
Cooling air slots in the generator must not become clogged with snow,  
leaves, or any other foreign material.  
Remove oil drain plug from end of hose and oil fill plug to drain oil  
completely into a suitable container.  
When oil has completely drained, install oil drain plug and tighten  
securely.  
Place a suitable container beneath the oil filter and turn filter  
counterclockwise to remove. Discard according to local regulations.  
Check the cleanliness of the generator frequently and clean when dust,  
dirt, oil, moisture or other foreign substances are visible on its exterior  
surface.  
Coat gasket of new filter with clean engine oil. Turn filter clockwise  
until gasket contacts lightly with filter adapter. Then tighten an  
additional 3/4 turn.  
ƽ CAUTION! Never insert any object or tool through the air cooling  
slots, even if the engine is not running.  
Fill oil sump with recommended oil. (See “Before Starting the  
Generator” on page 10 for oil recommendations).  
Note: DO NOT use a garden hose to clean generator.  
Water can enter the engine fuel system and cause  
problems. In addition, if water enters the generator  
through cooling air slots, some water will be retained  
in voids and crevices of the rotor and stator winding  
insulation. Water and dirt buildup on the generator  
internal windings will eventually decrease the  
insulation resistance of these windings.  
Wipe up any spilled oil.  
3.3.2 TO CLEAN THE GENERATOR  
Use a damp cloth to wipe exterior surfaces clean.  
A soft, bristle brush may be used to loosen caked on dirt, oil, etc.  
A vacuum cleaner may be used to pick up loose dirt and debris.  
Low pressure air (not to exceed 25 psi) may be used to blow away  
dirt. Inspect cooling air slots and openings on the generator. These  
openings must be kept clean and unobstructed.  
3.3.6 REPLACING THE SPARK PLUG  
15  
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Section 3 — Maintenance  
Commercial-Industrial-Residential Portable Generator System  
Use Champion RC12YC spark plug or equivalent.The correct air gap is  
0.76 mm (0.030 in.). Replace the plug once each year. This  
will help your engine start easier and run better.  
Wash pre-cleaner in soapy water. Squeeze pre-filter dry in clean  
cloth (DO NOT TWIST).  
Clean air cleaner cover before re-installing it.  
1. Stop the engine and pull the spark plug wire off of the spark plug.  
To clean or replace paper air filter:  
2. Clean the area around the spark plug and remove it from the  
cylinder head.  
Remove air cleaner cover; then remove foam pre-filter (service if  
necessary) and remove paper filter.  
3. Set the spark plug's gap to 0.76 mm (0.030 in.). Install the correctly  
gapped spark plug into the cylinder head.  
Clean paper filter by tapping it gently on a solid surface. If the filter  
is too dirty, replace it with a new one. Dispose of the old filter  
properly.  
Figure 18 - Spark Plug Gap  
Clean air cleaner cover then slip pre-cleaner over filter. Next insert  
new paper filter into the base of the air cleaner. Re-install air cleaner  
cover.  
Note: To order a new air filter, please contact the  
nearest authorized service center at 1-800-333-1322.  
3.5 CLEAN SPARK ARRESTOR  
SCREEN  
The engine exhaust muffler has a spark arrestor screen. Inspect and  
clean the screen at least once each year. If unit is used regularly,  
inspect and clean more often.  
3.4 SERVICE AIR CLEANER  
NOTE: If you use your generator on any forest-  
covered, brush-covered or grass-covered unimproved  
land, it must equipped with a spark arrestor.The spark  
arrestor must be maintained in good condition by the  
owner/operator.  
Your engine will not run properly and may be damaged if you run it  
using a dirty air cleaner. Clean or replace the air cleaner paper filter  
once a year. Clean or replace more often if operating under dusty  
conditions. Clean foam pre-cleaner every month or more often under  
dusty conditions.  
Clean and inspect the spark arrestor as follows:  
Remove the screen retaining bracket by removing the screw.  
Slide the spark arrestor screen out from the tail pipe.  
Figure 20 - Air Cleaner  
Cover  
Inspect screen and replace if torn, perforated or otherwise  
damaged. DO NOT USE a defective screen. If screen is not  
damaged, clean it with commercial solvent.  
Pre-Cleaner  
Replace the screen and the retaining bracket.  
Base  
Filter  
To clean or replace foam pre-cleaner:  
Remove air cleaner cover, then foam pre-filter.  
16  
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Section 3 — Maintenance  
Commercial-Industrial-Residential Portable Generator System  
the allen wrench and tighten the rocker arm jam nut.Tighten the jam nut  
to 174 in/lbs. torque. After tightening the jam nut, recheck valve  
clearance to make sure it did not change.  
Figure 21 - Spark Arrestor  
Figure 22 - Valve Clearance Adjustment  
MUFFLER OUTLET  
TUBE  
Rocker  
Pivot Ball  
Arm  
Stud  
Jam Nut  
RETAINER  
Valve  
Stem  
SPARK ARRRESTOR  
SCREEN  
RETAINING  
SCREW  
3.6 ADJUSTING VALVE CLEARANCE  
After the first 50 hours of operation, you should adjust  
the valve clearance in the engine.  
Install new valve cover gasket.  
Re-attach the valve cover.  
Important: If you feel uncomfortable about doing this procedure or  
you don't have the proper tools, please take your generator in to the  
nearest service center to have the valve clearance adjusted. This is a  
very important step to insure longest life for your engine.  
NOTE: Start all four screws before tightening or you  
will not be able to get all the screws in place. Make  
sure the valve cover gasket is in place.  
Re-attach the spark plug wire to the spark plug.  
Repeat the process for the other cylinder.  
To adjust valve clearance:  
Make sure the engine is at room temperature.  
Make sure that the spark plug wire is removed from the spark plug  
and out of the way.  
Remove the four screws attaching the valve cover with a #2 or #3  
phillips screwdriver.  
Make sure the piston is at Top Dead Center (TDC) of its  
compression stroke (both valves closed). To get the piston at TDC,  
remove the intake screen at the front of the engine to gain access to  
the flywheel nut. Use a large socket and socket wrench to rotate the  
nut and hence the engine. While watching the piston through the  
spark plug hole. The piston should move up and down. The piston  
is at TDC when it is up as high as it can go.  
Loosen the rocker jam nut. Use an 10mm allen wrench to turn the  
pivot ball stud while checking clearance between the rocker arm and  
the valve stem with a feeler gauge. Correct clearance is 0.002-0.004  
inch (0.05-0.1 mm).  
NOTE: You must hold the rocker arm jam nut in place  
as you turn the pivot ball stud.  
When valve clearance is correct, hold the pivot ball stud in place with  
17  
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Section 3 — Maintenance  
Commercial-Industrial-Residential Portable Generator System  
STORAGE  
3.9 OTHER STORAGE TIPS:  
3.7 GENERAL  
Do not store gasoline from one season to another.  
The generator should be started at least once every seven days and be  
allowed to run at least 30 minutes. If this cannot be done and you must  
store the unit for more than 30 days, use the following information as a  
guide to prepare it for storage.  
Replace your gasoline can if your can starts to rust. Rust and/or dirt  
in your gasoline will cause problems with the carburetor and fuel  
system.  
If possible, store your unit indoors and cover it to give protection  
from dust and dirt. BE SURETO EMPTYTHE FUELTANK.  
ƷƸDANGER! NEVER store engine with fuel in tank  
If it is not practical to empty the fuel tank and the unit is to be stored  
for some time, use a commercially available fuel stabilizer added to  
the gasoline to increase the life of the gasoline.  
indoors or in enclosed, poorly ventilated areas  
where fumes may reach an open flame, spark or  
pilot light as on a furnace, water heater, clothes  
dryer or other gas appliance.  
Cover your unit with a suitable protective cover that does not retain  
moisture.  
3.8 LONG TERM STORAGE  
ƽDANGER! NEVER cover your generator while  
engine and exhaust area are warm.  
It is important to prevent gum deposits from forming in essential fuel  
system parts such as the carburetor, fuel hose or tank during storage.  
Also, experience indicates that alcohol-blended fuels (called gasohol,  
ethanol or methanol) can attract moisture, which leads to separation  
and formation of acids during storage. Acidic gas can damage the fuel  
system  
storage.  
of  
an  
engine  
while  
in  
To avoid engine problems, the fuel system should be emptied before  
storage of 30 days or longer, as follows:  
• Remove all gasoline from the fuel tank.  
ƷƸDANGER! Drain fuel into approved container  
outdoors, away from open flame. Be sure engine is  
cool. Do not smoke.  
Start and run engine until engine stops from lack of fuel.  
While engine is still warm, drain oil from crankcase. Refill with  
recommended grade.  
Remove spark plugs and pour about 1/2 ounce  
(15 ml) of engine oil into the cylinders. Cover spark plug hole with  
rag. Press the “Start” button and allow engine to crank for 2  
seconds. Then press the “Stop” button.  
ƽCAUTION! Avoid spray from spark plug holes  
when cranking engine.  
Install and tighten spark plugs. Do not connect spark plug wires.  
Clean the generator outer surfaces. Check that cooling air slots  
and openings on generator are open and unobstructed.  
Store the unit in a clean, dry place.  
18  
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Section 4 — Troubleshooting  
Commercial-Industrial-Residential Portable Generator System  
4.1 TROUBLESHOOTING  
PROBLEM  
CAUSE  
SOLUTION  
Engine is running, but no AC  
output is available.  
1. Circuit breaker is open.  
2. Poor connection or defective cord set.  
3. Connected device is bad.  
1. Reset circuit breaker.  
2. Check and repair.  
3. Connect another device that is in  
good condition.  
4. Fault in generator.  
4. Contact Authorized Service Facility.  
Engine runs good but bogs  
down when loads are connected.  
1. Short circuit in a connected load.  
2. Generator is overloaded.  
3. Engine speed is too slow.  
4. Shorted generator circuit.  
1. Disconnect shorted electrical load.  
2. See “Don’t Overload the Generator” on page 9.  
3. Contact Authorized Service Facility.  
4. Contact Authorized Service Facility.  
Engine will not start; or starts  
and runs rough.  
1. Dirty air cleaner.  
2. Out of gasoline.  
1. Clean or replace air cleaner.  
2. Fill fuel tank.  
3. Stale gasoline.  
4. Spark plug wire not connected to  
spark plug.  
3. Drain fuel tank and fill with fresh fuel.  
4. Connect wire to spark plug.  
5. Bad spark plug.  
5. Replace spark plug.  
6. Water in gasoline.  
7. Overchoking.  
8. Low oil level.  
9. Excessive rich fuel mixture.  
10. Intake valve stuck open or closed.  
11. Engine has lost compression.  
6. Drain fuel tank; fill with fresh fuel.  
7. Put choke knob to No Choke position.  
8. Fill crankcase to proper level.  
9. Contact Authorized Service Facility.  
10. Contact Authorized Service Facility.  
11. Contact Authorized Service Facility.  
Engine shuts down during  
operation.  
1. Out of gasoline.  
2. Low oil level.  
3. Fault in engine.  
1. Fill fuel tank.  
2. Fill crankcase to proper level.  
3. Contact Authorized Service Facility.  
Engine lacks power.  
1. Load is too high.  
2. Dirty air filter.  
1. See “Don’t Overload the Generator” on page 9.  
2. Replace air filter.  
3. Engine needs to be serviced.  
3. Contact Authorized Service Facility.  
Engine “hunts” or falters.  
1. Choke is opened too soon.  
1. Move choke to halfway position until  
engine runs smoothly.  
2. Carburetor is running too rich or too  
lean.  
2. Contact Authorized Service Facility.  
No Battery Charge DC output.  
1. Battery posts are corroded.  
2. Battery cable is bad.  
3. Battery is defective.  
1. Clean battery posts.  
2. Replace cable.  
3. Check battery condition; replace if  
defective.  
4. Receptacle is bad.  
4. Contact Authorized Service Facility.  
19  
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Section 5 — Notes  
Commercial-Industrial-Residential Portable Generator System  
20  
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Section 5 - Notes  
Commercial-Industrial-Residential Portable Generator System  
21  
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Section 6 — Electrical Data  
Commercial-Industrial-Residential Portable Generator System  
Wiring Diagram – Drawing No. 0E0228  
C B 1  
W H I T E  
W H I T E  
HOT  
HOT  
W H I T E  
W H I T E  
HOT  
HOT  
22  
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Section 6 — Electrical Data  
Commercial-Industrial-Residential Portable Generator System  
Schematic – Drawing No. 0E0229  
23  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E0034  
24  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
GT-990 & GT-760 Engine (Page 1) – Drawing No. 0E0034  
ITEM PART NO. QTY.  
DESCRIPTION  
ITEM PART NO. QTY.  
DESCRIPTION  
1
0C5729  
1
ASSEMBLY, CRANKCASE HOUSING  
WITH SLEEVE  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
49  
50  
0C3006  
0C8566  
0C8808  
0C2981  
0C2979  
086515  
0D2274  
0D3867  
078672  
0C5371  
072694  
0D5313  
0D3998  
11  
8
2
1
2
8
4
4
2
4
4
4
4
SCREW, HHFC M10-1.5 X 55  
SCREW HHFC M6-1.0 X 20  
HOOK, LIFTING  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
0C3008  
090388  
0C5372  
0C3005  
0C3003  
0D8067A  
071983  
0D5269  
043790A  
0C2967  
021533  
071980  
0D4041  
0D4788  
093064  
0C2977  
0C5943  
0D4040E  
1
8
1
1
3
1
4
1
1
2
2
2
1
2
1
1
1
1
SEAL, 38 I.D. CRANKSHAFT  
SCREW, TAPTITE M6-1.0 X 12 BP  
ASSEMBLY, BREATHER  
GASKET, BREATHER COVER  
SEPARATOR, OIL BREATHER  
ASSEMBLY, HEAD #1  
RETAINER, PISTON PIN 20  
ROCKER, COVER  
BARBED EL 90 3/8NPT X 3/8  
PISTON, LC  
SET, PISTON RING 90MM  
PIN PISTON D20  
ASSEMBLY, CAMSHAFT & GEAR  
PLUG STD PIPE 3/8 STEEL SQ HD  
ASSEMBLY, OIL FILL CAP  
GASKET, CRANK CASE  
SEAL, OIL PASSAGE  
ASSEMBLY, CRANKSHAFT  
HORIZONTAL DIRECT DRIVE  
(GT-990)  
ASSEMBLY, CRANKSHAFT  
HORIZONTAL DIRECT DRIVE  
(GT-760)  
ASSEMBLY, CONNECTING ROD  
(GT-990)  
ROCKER, COVER  
GASKET, VALVE COVER  
KEEPER, VALVE SPRING  
RETAINER, VALVE SPRING  
SPRING, VALVE  
SEAL, VALVE STEM D7  
WASHER, VALVE SPRING  
STUD, D20 PIVOT BALL  
ROCKER ARM  
NUT, HEX M8-1.0 GB YELLOW  
CHROME  
PLATE, PUSH ROD GUIDE  
SCREW HHFC M8-1.25 X 65  
VALVE, EXHAUST  
51  
52  
53  
54  
55  
56  
57  
58  
0D6024  
0C2976  
086516  
0C2229  
083897  
0D8067B  
0D9853D  
0C2978  
0D9000  
0D6008  
0D4010  
0D6007  
0D4012  
0D8675A  
0D8675B  
0D4015  
2
12  
2
2
4
1
4
2
2
1
1
1
1
1
1
1
VALVE, INTAKE  
TAPPET, SOLID  
ASSEMBLY, HEAD #2  
PUSHROD 144.6  
GASKET, HEAD (GT-990)  
GASKET, HEAD (GT-760)  
KIT GEAR COVER  
19  
0D4122E  
1
59  
60  
61  
62  
63  
64  
65  
KIT GASKET  
20  
20  
0C2969  
0D3961  
2
2
KIT PISTON & RINGS  
KIT BREATHER ASSEMBLY  
KIT HEAD ASSEMBLY CYLINDER 1  
KIT HEAD ASSEMBLY CYLINDER 2  
KIT OIL RELIEF  
ASSEMBLY, CONNECTING ROD  
(GT-760)  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
0D2157  
0C5313  
0D4123  
078699E  
0C3011  
0C3009  
0C3010  
093873  
0C5315  
0C5998  
0D4497  
2
1
1
2
2
2
2
2
1
1
1
SCREW SHC M6-1.0 X 50 G8.8  
SCREEN, OIL PICKUP  
ASSEMBLY, OIL PUMP  
SLEEVE, SEAMED DOWEL 10 DIA.  
COVER, OIL RELIEF  
SPRING, OIL RELIEF  
BALL, 1/2D OIL RELIEF  
WASHER, LOCK RIB M6  
GEROTOR, OUTER  
Item 59 (Kit) includes items 3, 30, 35 & Kit item 64  
Item 60 (Kit) includes items 2, 5, 17, 18, 34, 35, 40, 57, 139, 153.  
Item 61 (Kit) includes items 8, 11, 12, 13  
Item 62 (Kit) includes items 4, 5, 6  
Item 63 (Kit) includes items 7, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,  
53, 54  
Item 64 (Kit) includes items 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,  
54, 56  
Item 65 (Kit) includes items 25, 26, 27  
CLAMP, OIL TUBE  
PLUG-CRANKCASE GOVERNOR  
BORE  
32  
0C3971E  
1
ASSEMBLY, DIPSTICK WITH  
HANDLE  
33  
34  
35  
36  
0D3745  
0C3027  
0C3007  
0C5731  
1
3
1
1
TUBE, DIPSTICK  
O-RING, OIL CLR  
SEAL, 42 I.D. CRANKSHAFT  
ASSEMBLY, HOUSING COVER WITH  
SLEEVE  
25  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
GT-990 & GT-760 Engine (Page 2) – Drawing No. 0E0034  
26  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
GT-990 & GT-760 Engine (Page 2) – Drawing No. 0E0034  
ITEM PART NO. QTY.  
DESCRIPTION  
ITEM PART NO. QTY.  
DESCRIPTION  
66  
67  
68  
69  
70  
71  
72  
73  
087680  
0D4511  
0D3262  
0D6020  
0D4183  
0D6327  
0D2774B  
0D5125  
1
1
1
1
1
1
1
1
WINGNUT, AIRBOX  
PRECLEANER, AIR  
ELEMENT, AIR CLEANER  
STUD M6-1.0 X 73  
ADAPTOR, SPIT BACK  
GASKET, SPITBACK  
BASE, AIRBOX  
SPRING, WINTER/SUMMER  
VALVE  
118  
119  
120  
121  
122  
123  
124  
125  
0D6142  
0D5399  
072347  
0C3017  
022129  
061906  
0C8919  
079246  
2
1
2
1
2
2
1
1
SCREW PPHM M4-0.7 X 40  
ELBOW, RUBBER 90 DEG.  
SPARKPLUG  
STARTER  
WASHER LOCK M8-5/16  
SCREW HHC M8-1.25 X 85 G8.8  
BRACKET, STARTER  
SCREW HHC M6-1.0 X 16mm W/  
LOCKWASHER  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
0D2930  
0D4612  
0D6143  
0D2775  
0D5014A  
0D5014B  
049721  
022097  
022473  
052857  
0D6021  
0C9093  
0D4522  
074908  
066849B  
1
1
1
1
1
1
1
1
1
4
4
1
1
1
1
VALVE, SUMMER / WINTER  
SNORKEL, AIR INTAKE  
TUBE, HEAT RISER 50.8 I.D.  
COVER, AIRBOX  
KNOB, AIRBOX 17mm  
KNOB, AIRBOX 95MM  
SCREW HHC M6-1.0 X 35  
WASHER LOCK M6-1/4  
WASHER FLAT 1/4  
126  
127  
0D1131  
0C3022B  
1
1
GUARD,FAN  
HOUSING, BLOWER GASOLINE  
COOLER  
NUT, GROMMET 1/4 PLUG  
NUT,HEX M24  
WASHER, M24  
PLATE, FAN  
WASHER SHAKEPROOF INT M8  
SS  
SCREW HHC M8-1.25 X 12 G8.8  
FAN, NYLON  
INSULATOR ASSEMBLY IGNITION  
SCREW TAPTITE M6-1X10  
YELLOW CHROME  
FLYWHEEL ASSEMBLY  
PLATE, BACKING GT990 WITH  
OIL COOL  
KEY, WOODRFF 4 X 19D  
GASKET, MANIFOLD / PORT  
PLASTITE,1/4-15 X 3/4  
COOLER, OIL  
CLAMP HOSE #5.5 .62 - .62  
HOSE, 3/8" I.D. X 6" LONG  
BARBED STR 1/4NPT X 3/8 WITH  
VIBRA SEAL  
FILTER, OIL D 69 X 64 LONG  
NIPPLE, 3/4"-16 UNF  
ASSEMBLY, OIL DRAIN HOSE  
SWITCH, OIL PRESS  
BRACKET, AIRBOX SUPPORT  
WRAPPER, UPPER CYLINDER 1  
WRAPPER, LOWER CYLINDER 1  
BRASS ST ELBOW 1/4 NPT  
ROD,GOV. STEP MOTOR-  
CARBURETOR  
128  
129  
130  
131  
132  
0C9763  
0C3034  
0C3033  
0C3032  
0A5992  
4
1
1
1
2
NUT LOCK FLANGE M6-1.0  
STUD, METRIC  
HOSE, BREATHER  
133  
134  
135  
136  
051754  
0C3031  
085011  
045756  
2
1
1
4
CONTROLLER ASSEMBLY  
SCREW HHTT M5-0.8 X 10  
SCREW HHTT M5-0.8 X 8mm  
ASSEMBLY, WIRE  
CARBURETOR (GT-990)  
CARBURETOR (GT-760)  
GASKET,CARB TO SPACER  
CLAMP HOSE BAND 1/4  
HOSE ¼ ID  
GASKET, MANIFOLD TO  
CARBURETOR  
SLEEVING 1/2" I.D.  
FILTER, FUEL  
WASHER FLAT M8  
137  
138  
0C3725A  
0C3016A  
1
1
0536210209 1  
0C8526  
0D8059  
0D4024  
048031C  
030340  
0D5282  
1
1
1
4
12"  
1
139  
140  
141  
142  
143  
144  
145  
082774  
0C3043  
0C9764  
0C3026  
040173  
0C9806  
035461A  
1
2
4
1
4
2
2
91  
92  
93  
94  
95  
96  
97  
98  
086061G  
0D6313  
070008  
070006  
049821  
0C9911  
051714  
0D5411  
0D5445  
0D5416  
1
1
4
4
4
1
3
1
1
1
146  
147  
148  
149  
150  
151  
152  
153  
154  
070185  
0C7292  
0D3083  
0C3025  
0D4550  
0C3018  
0C3019  
046964  
0D5605  
1
1
1
1
1
1
1
1
1
WASHER LOCK M8  
SCREW SHC M8-1.25 X 30  
MANIFOLD, INTAKE  
99  
100  
101  
102  
103  
104  
NUT HEX M3-0.5  
ROD, SUMMER / WINTER VALVE  
BUSHING, MINI CONTROL PANEL  
KNOB, CONTROL SUMMER /  
WINTER  
105  
106  
107  
108  
0D5398  
066849  
0D3432  
045756  
1
2
1
CHOKE ASSEMBLY  
SCREW TAPTITE M5-0.8 X 8 BP  
PANEL, CONTROL FACE PLATE  
SCREW TAPTITE M6-1.0X 10  
YELLOW CHROME  
155  
156  
157  
158  
0D6341  
0D6342  
0D9784  
031879  
2
2
2
1
ROD END  
BALL STUD  
NUT LOCK HEX M3-0.5  
WASHER FLAT #4  
26  
109  
110  
111  
112  
113  
114  
115  
116  
117  
0D4767  
0D1142A  
0D1143  
0C3053  
022097  
092079  
0C3052  
0C4147  
022264  
1
1
1
1
4
4
2
1
2
SWITCH ROCKER  
WRAPPER, LOWER CYLINDER 2  
WRAPPER, UPPER CYLINDER 2  
ASSEMBLY, GROUND WIRE  
WASHER LOCK M6-1/4  
SCREW TAPTITE M6-1.0 X 25 BP  
ASSEMBLY, IGNITION COIL  
PUMP, IMPULSE  
WASHER LOCK M4  
27  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Generator – Drawing No. 0D4488  
7
5
29  
35  
31  
36  
1
28  
2
29  
28  
3
26  
30  
41  
24  
18  
25  
22  
20  
40  
4
9
21  
22  
32  
19  
37  
15  
14  
10  
23  
10  
6
11  
28  
27  
31  
32  
17  
10  
12  
28  
31  
42  
16  
24  
43  
44  
8
19  
17  
32  
33  
13  
39  
38  
40  
41  
45  
30  
34  
28  
31  
32  
39  
28  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Generator – Drawing No. 0D4488  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
1
2
0C6934  
0D2123  
0D2134  
0D2132  
0D2133  
0C6043B  
0D2492  
0D2726  
0C4138  
0D3547  
031971  
0C3168  
1
1
ADAPTOR, ENGINE  
STATOR 12.5KW  
STATOR 15KW  
ROTOR 12.5KW  
23  
24  
25  
26  
27  
28  
29  
0A2038  
022237  
022511  
022131  
039288  
022145  
049820  
1
5
4
4
4
22  
4
WASHER FLAT 3/8 ZINC  
WASHER LOCK 3/8  
SCREW HHC 3/8-16 X 1-1/4 G5  
WASHER FLAT 3/8-M10 ZINC  
SCREW HHC M8-1.25 X 55 G8.8  
WASHER FLAT 5/16 ZINC  
NUT LOCK HEX M8-1.25  
NYLON INSERT  
SCREW HHC M6-1.0 X 12  
WASHER LOCK M8-5/16  
NUT HEX 5/16-18 STEEL  
SCREW TAPTITE 3/8-16 X 3/4 BP  
SHIELD, MUFFLER HEAT  
U-BOLT & SADDLE  
SCREW SHC M8-1.25 X 18  
PANEL, MUFFLER BOX BACK  
PANEL, MUFFLER BOX END  
SCREW HHTT M6-1.0 X 12  
WASHER FLAT 1/4  
WASHER LOCK M6-1/4  
SPARK ARRESTOR SCREEN  
RETAINER, SPARK  
3
1
ROTOR 15KW  
4
5
6
7
8
9
10  
1
1
1
2
1
1
3
CARRIER, REAR BEARING  
EXHAUST MANIFOLD  
MUFFLER  
GASKET, EXHAUST  
COVER, ALTERNATOR AIR IN  
BEARING  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
043116  
022129  
022259  
059637  
0D5100  
0D5823  
0C8565  
0D5833  
0D5834  
090388  
022473  
022097  
0D5133  
0D5133A  
5
18  
12  
2
1
1
4
1
1
3
5
5
1
1
5/16 SPECIAL LOCK  
WASHER  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
0D1838  
0D3549  
0C7038E  
032712  
083512  
0C7038D  
0C7758  
1
4
1
4
1
1
6
SCREW IHHC 3/8-24 X 15.50 G5  
SCREW IHHC M8-1.25 X 400 G8.8  
BRACKET, ALT MOUNTING  
SCREW HHTT #10-32 X 1.75  
SCREW TAPTITE M8-1.25 X 16 BP  
ENGINE MOUNTING PLATE  
RUBBER MOUNT  
BATTERY CABLE, BLACK  
EARTH STRAP 3/8X 3/8  
CLIP-J VINYL COAT .625 ID  
ASSEMBLY, BRUSH HOLDER  
SCREW TAP-R #10-32 X 9/16  
0388050AF0 1  
0C2417A  
082121C  
066386  
1
1
1
3
ARREST SCREEN  
SCREW HHTT M4-0.7 X 8  
SHIELD, RUBBER MOUNT  
44  
45  
045764  
0D6214  
1
1
0C2824  
29  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Control Panel – Drawing No. 0E0227  
30  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Control Panel – Drawing No. 0E0227  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
022158  
023897  
057405  
022473  
022097  
049813  
065795  
0D4804  
0C1085  
051715  
022264  
048512  
087962  
1
1
1
1
1
1
2
2
4
NUT HEX #10-32  
WASHER FLAT #10  
RESISTOR 25R 5% 25W  
WASHER FLAT 1/4  
WASHER LOCK M6-1/4  
NUT HEX M6-1.0 G8  
RECTIFIER-BATTERY CHARGER  
TRANSFORMER, IDLE CURRENT  
SCREW PPHM M3-0.5 X 8  
NUT HEX M4-0.7 G8  
1
2
3
4
5
6
7
8
087968  
090418  
0D6640  
090987  
0D2502  
068868  
022985  
043182  
051714  
075207A  
075207  
0D4969  
043437  
0D4968  
0D4966  
0D1004E  
1
1
1
6
1
2
2
10  
6
4
2
1
1
1
1
1
SWITCH, ROCKER -/0  
OUTLET, 12VDC SNAP  
COVER, GOVERNOR CONTROL  
SCREW PPHM M3-0.5 X 12  
PANEL, SHEET METAL  
OUTLET 30A 120V RECEPT  
WASHER FLAT #6  
WASHER LOCK M3  
NUT HEX M3-0.5 G8  
9
18  
18  
1
10  
11  
12  
13  
14  
15  
16  
CIRCUIT BREAKER 30A  
CIRCUIT BREAKER 20A  
OUTLET 50A 125/250V  
OUTLET 30A 125/250V  
OUTLET 20A 120V DPLX  
OUTLET 20A 120V GFCI  
CIRCUIT BREAKER 50A 400V  
2POLE  
WASHER LOCK M4  
CIRCUIT BREAKER 5 X 1  
CIRCUIT BREAKER 10 X 1 12VDC  
1/4"QC  
RIVET POP .125 X .129-.133 / #30  
LUG GRND 8 TABS  
HOLDER FUSE  
FUSE 10A X AGC10  
HEATSINK  
SCREW PPHM M4-0.7 X 10  
SCREW HHC M5-0.8 X 16 G8.8  
SCREW HHC M6-1.0 X 65 G8.8  
SCREW HHC M5-0.8 X 25 G8.8  
SCREW HHC M5-0.8 X 10 G8.8  
SPACER .25 X .50 X 1.5  
SCREW HHTT M5-0.8 X 10  
SCREW PPHM M5-0.8 X 30  
SCREW PPHM M5-0.8 X 50  
WASHER FLAT #8  
1
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
036261  
0A2769  
032300  
028578  
055444  
075475  
049815  
0A2053  
055440  
045770  
0D5734  
074908  
075235  
080823  
038150  
0D6140  
2
1
1
1
1
2
4
1
2
1
2
18  
1
2
17  
18  
19  
20  
051716  
022152  
0D5045  
067680  
8
8
1
1
NUT HEX M5-0.8 G8  
WASHER LOCK #10  
DIN RAIL 59.5mm LONG  
ASSEMBLY VOLTAGE REGULATOR  
60HZ  
ELECTRONIC GOVERNOR / IDLE  
CONTROLLER  
RELAY PNL 12VDC SPST 30A  
RELAY 12VDC 5A 3PDT 240V  
CONTROL PANEL BOX  
BUSHING SNAP  
RIVET POP .156 X .160-.164 / #20  
BLOCK TERMINAL 20A 2 X 6 X  
1100V  
21  
0D4409  
1
22  
23  
24  
25  
26  
27  
052844  
0D4766  
0D2691  
023484L  
0A1661  
048766  
1
1
1
1
2
1
14  
1
GASKET, PORTABLE CONTROL  
PANEL  
SCREW PPHM M4-0.7 X 16  
61  
62  
63  
075476  
027565  
058000K  
2
28  
0D3550  
1
BLOCK DOUBLE ROW TERMINAL 8  
POSITION  
RECTIFIER MSC 12A 600V  
WASHER MICA .203  
A/R TAPE ELEC UL PERMACEL  
NUT TRIC M5-0.8  
2
29  
30  
31  
049939  
070370  
030468  
1
1
1
WASHER STEP NYLON .20  
31  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Frame, Handle & Wheel Kit – Drawing No. 0E0695  
32  
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Section 7 — Exploded Views and Parts Lists  
Commercial-Industrial-Residential Portable Generator System  
Frame, Handle & Wheel Kit – Drawing No. 0E0695  
ITEM PART NO. QTY. DESCRIPTION  
ITEM PART NO. QTY. DESCRIPTION  
28  
29  
30  
31  
32  
33  
34  
35  
36  
0D9165  
045900  
0D7668  
0D4999  
0D4044  
0D3700  
0D2497  
022532  
027028  
1
2
2
2
2
4
1
4
6
AXLE, 3/4"DIA X 30"  
WASHER FLAT 3/4  
1
2
3
4
5
6
7
8
057058  
0D5315  
0D4570  
0D22850SRV  
045771  
022129  
022145  
0D4565  
0D3545  
022287  
022473  
022097  
022127  
0388040AK0  
0D4575  
0D5202  
0D5199  
029809  
0C3168  
0D5198  
0E0317  
027007  
0D5303  
042909  
090388  
064101  
039214  
4
4
1
1
4
SCREW HHC M6-1.0 X 55  
RUBBER TANK MOUNT  
CAP, FUEL WITH GAUGE & VENT  
KIT, FUEL TANK  
12.3" PNEUM WHEEL 3/4" AXLE  
PIN COTTER 1/8 X 1-1/4  
BRACKET, WHEEL SPACER  
NUT FLANGE M6-1.0 NYLOK  
HANDLE  
SCREW HHC 5/16-18 X 2-1/2 G5  
NUT LOCK HEX 5/16-18 NYLON  
INSERT  
NUT HEX M8-1.25  
10 WASHER LOCK M8-5/16  
14 WASHER FLAT 5/16  
1
2
2
2
2
2
1
1
1
4
1
1
1
1
2
4
2
4
6
6
BRACKET BATTERY  
9
BOLT,BATTERY J-BOLT  
SCREW HHC 1/4-20 X 3/4 G5  
WASHER FLAT 1/4  
WASHER LOCK M6-1/4  
NUT HEX 1/4-20  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
0D2271  
052762  
051713  
049226  
051716  
050190  
078299  
080270  
0D5142  
096021  
048031C  
030340  
075763  
075763A  
0E0318  
030795  
1
4
8
4
4
2
1
1
1
2
2
FRAME  
SCREW HHC M5-0.8 X 45 G8.8  
WASHER FLAT M5  
WASHER LOCK M5  
NUT HEX M5-0.8  
WASHER FLAT 1"  
BUSHING TANK DEXTOR  
VALVE, PLASTIC TANK  
AIR DEFLECTOR  
GROMMET .75 X .06 X .50  
CLAMP HOSE BAND ¼  
BATTERY CABLE, RED  
BATTERY U1  
NUT WING 5/16-18 BRASS  
WASHER FLAT 5/16 BRASS  
NUT HEX 5/16-18 BRASS  
5/16 SPECIAL L/WASH  
SCREW HHC 5/16-18 X 1.5 BRASS  
BRACKET FRONT FOOT  
VIB MOUNT  
WASHER FLAT .25ID X 1"OD  
SCREW HHC M8-1.25 X 30  
SCREW HHTT M6-1.0 X 12  
NUT LOCK FL 3/8-16  
18" HOSE ¼ ID  
1
1
2
2
BOOT BATTERY CABLE  
BOOT STARTER CABLE  
SPACER, AXLE  
SCREW HHC 5/16"-18 X 1"  
BOLT CARR 3/8-16 X 1  
33  
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Section 8 – Warranty  
Commercial-Industrial-Residential Portable Generator System  
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
The California Air Resources Board (CARB) and Generac Power Systems, Inc. (Generac) are pleased to explain the Emission Control System  
warranty on your new engine. In California, new off-road Large Spark-Ignition (LSI) engines must be designed, built and equipped to meet the state's  
stringent anti-smog standards. Generac will warrant the emission control. system on your engine one for the periods of time listed below provided  
there has been no abuse, neglect, unapproved modification or improper maintenance of your engine.  
Your emission control system may include parts such as the carburetor, ignition system and exhaust system. Generac will repair your engine at no  
cost to you for diagnosis, replacement parts arid labor, should a warrantable condition occur.  
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE:  
Emissions control systems on 2001 and later model year LSI engines are warranted for two years as hereinafter noted- If, during such warranty period,  
any emission-related component or system on your engine is found to be defective in materials or workmanship, repairs or replacement will be  
performed by a Generac Authorized Warranty Service Facility.  
PURCHASER'S/OWNER'S WARRANTY RESPONSIBILITIES:  
As the engine owner, you are responsible for the completion of all required maintenance as listed in your factory supplied Owner's Manual. For  
warranty purposes, Generac recommends that you retain all receipts covering maintenance on your engine. However, Generac cannot deny warranty  
solely due to the lack of receipts or for your failure to ensure the completion of all scheduled maintenance.  
As the engine purchaser/owner, you should, however, be aware that Generac may deny any and/or all warranty coverage or responsibility if your  
engine, or a part/component thereof, has failed due to abuse, neglect , improper maintenance or unapproved modifications, or the use of counterfeit  
and/ox "grey market" parts not made, supplied or approved by Generac.  
You are responsible for contacting a. Generac Authorized Warranty Facility as soon as a problem occurs. The  
warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.  
Warranty service can be arranged by contacting either your selling dealer or a Generac Authorized Warranty Service Facility. To locate the Generac  
Authorized Warranty Service Facility nearest you, call our toll free number:  
1-800-333-1322  
IMPORTANT NOTE: This warranty statement explains your rights and obligations under the Emission Control System Warranty (ECS Warranty),  
which is provided to you by Generac pursuant to California law. See also the "Generac Limited Warranties for Generac Power Systems, Inc.," which  
is enclosed herewith on a separate sheet, also provided to you by Generac. The ECS Warranty applies only to the emission control system of your  
new engine. If there is any conflict in terms between the ECS Warranty and the Generac Warranty, the ECS warranty shall apply except in  
circumstances where the Generac Warranty may provide a longer warranty period. Both the ECS Warranty and the Generac Warranty describe  
important rights and obligations with respect to your new engine.  
Warranty service can be performed only by a Generac Authorized Warranty Service Facility. When requesting warranty service, evidence must be  
presented showing the date of the sale to the original purchaser/owner.  
If you have any questions regarding your warranty rights and responsibilities, you should contact Generac at one of the following addresses:  
ATTENTION WARRANTY DEPARTMENT  
GENERAC POWER SYSTEMS, INC.  
P.O. BOX 297 • WHITEWATER, WI 53190  
Part 1  
34  
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Section 8 – Warranty  
Commercial-Industrial-Residential Portable Generator System  
EMISSION CONTROL SYSTEM WARRANTY  
Emission Control System Warranty (ECS warranty) for 2001 and later model year LSI engines:  
(a) Applicability: This warranty shall apply to 1995 and later model year engines. The ECS Warranty period shall begin on the date the new engine or equipment is  
purchased by/delivered to its original, end-use purchaser/owner and shall continue for 24 consecutive months thereafter.  
(b) General Emissions Warranty Coverage: Generac warrants to the original, end-use purchaser/owner of the new engine or equipment and to each subsequent  
purchaser/owner that each of its engines is...  
(1) Designed, built and equipped so as to conform with all applicable regulations adopted by the CARB pursuant to its authority, and  
(2) Free from defects in materials and workmanship which, at any time during the ECS Warranty Period, may cause a warranted emissions-related part to fail to be  
identical in all material respects to the part as described in the engine manufacturer's application for certification.  
The ECS Warranty pertains only to emissions-related parts on your engine, as follows:  
(1) Any warranted, emissions-related parts that are not scheduled for replacement as required maintenance in the Owner's Manual shall be warranted for the ECS  
Warranty Period. If any such part fails during the ECS Warranty Period, it shall be repaired or replaced by Generac according to Subsection (4) below. Any such  
part repaired or replaced under the ECS Warranty shall be warranted for the remainder of the ECS Warranty Period.  
(2) Any warranted, emissions-related part that is scheduled only for regular inspection as specified in the Owner's Manual shall be warranted for the ECS Warranty  
Period. A statement in such written instructions to the effect of "repair or replace as necessary" shall not reduce the ECS Warranty Period. Any such part repaired  
or replaced under the ECS Warranty shall be warranted for the remainder of the ECS Warranty Period.  
(3) Any warranted, emissions-related part that is scheduled for replacement as required maintenance in the Owner's Manual shall be warranted for the period of time  
prior to first scheduled replacement point for that part. If the part fails prior to the first scheduled replacement, the part shall be repaired or replaced by Generac  
according to Subsection (4) below. Any such emissions-related part repaired or replaced under the ECS warranty shall be warranted for the remainder of the ECS  
Warranty Period prior to the first scheduled replacement point for such emissions-related part.  
(4) Repair or replacement of any warranted, emissions-related part under this ECS Warranty shall be performed at no charge to the owner at a Generac Authorized  
Warranty Service Facility.  
(5) When the engine is inspected by a Generac Authorized Warranty Service Facility, the purchaser/owner shall not be held responsible for diagnostic costs if the  
repair is deemed warrantable.  
(6) Generac shall be liable for damages to other original engine components or approved modifications caused by a failure under warranty of any emission-related  
part covered by the ECS Warranty.  
(7) Throughout the ECS Warranty Period, Generac shall maintain a supply of warranted emission-related parts sufficient to meet the expected demand for such  
emission-related parts.  
(8) Any Generac authorized and approved emission-related replacement part may be used in the performance of any ECS warranty maintenance or repairs and will  
be provided without charge to the purchaser/owner. Such use shall not reduce Generac RCS Warranty obligations.  
(9) Unapproved, add-on, modified, counterfeit and/or "grey market" parts nay not be used to modify or repair a Generac engine. Such use voids this ECS Warranty  
and shall be sufficient grounds for disallowing an ECS Warranty claim. Generac shall not be held liable hereunder for failures of any warranted parts of a Generac  
engine caused by the use of such an unapproved, add-on, modified, counterfeit and/or "grey market" part.  
EMISSION RELATED PARTS INCLUDE THE FOLLOWING:  
1) Fuel Metering System:  
3) Ignition System including:  
a) Spark plug  
1.2) LPG/Natural Gas carburetion assembly and its internal components.  
b) Ignition module  
a) Fuel controller (if so equipped)  
4) Catalytic Muffler Assembly (if so equipped) including:  
a) Muffler gasket  
b) Exhaust manifold  
b) Mixer and its gaskets (if so equipped)  
c) Carburetor and its gaskets (if so equipped)  
d) Primary gas regulator (if so equipped)  
e) LP liquid vaporizer (if so equipped)  
5) Crankcase Breather Assembly including:  
a) Breather connection tube  
2) Air Induction System including:  
a) Intake pipe/manifold  
b) Air cleaner  
* Generac engine types covered by this warranty statement include the following:  
1) Prepackaged Standby Generator  
2) Auxiliary Power Unit (APU) Generator  
3) Standby Generator  
Part 2  
35  
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Section 8 – Warranty  
Commercial-Industrial-Residential Portable Generator System  
®
GENERAC POWER SYSTEMS “TWO YEAR” LIMITED WARRANTY FOR GUARDIAN  
“12,500 WATT AND 15,000 WATT PORTABLE GENERATORS”  
For  
a
period of two years from the date of original sale, Generac Power Systems, Inc. (Generac) warrants its Guardian  
generator will be free from defects in materials and workmanship for the items and period set forth below. Generac will, at its option, repair or replace any part which,  
upon examination, inspection and testing by Generac or a Generac Authorized Warranty Service Dealer, is found to be defective. Any equipment that the  
purchaser/owner claims to be defective must be returned to and examined by the nearest Generac Authorized Warranty Service Dealer. All transportation costs under  
the warranty, including return to the factory, are to be borne and prepaid by the purchaser/owner. This warranty applies only to Generac Guardian portable generators  
and is not transferable.  
WARRANTY SCHEDULE  
Consumer applications are warranted for 2 (two) years. Commercial applications are warranted for 1 (one) year. Rental applications are warranted for 90 (ninety) days.  
CONSUMER APPLICATION  
YEARS ONE and TWO - 100% (one hundred percent) coverage on Labor and Part(s) listed (proof of purchase and maintenance is required):  
Engine - All Components  
Alternator - All Components  
NOTE: For the purpose of this warranty "consumer use" means personal residential household use by original purchaser. This does not apply to units used for Prime  
Power in place of utility where utility power service normally exists. Once a generator has experienced commercial or rental use, it shall thereafter be considered a  
non-consumer use generator for the purpose of this warranty.  
All warranty expense allowances are subject to the conditions defined in Generac's Warranty Policies, Procedures and Flat Rate Manual.  
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING:  
Generac Guardian portable generators that utilize non-Generac replacement parts.  
Costs of normal maintenance and adjustments.  
Failures caused by any contaminated fuels, oils or lack of proper oil levels.  
Failures due, but not limited, to normal wear and tear, accident, misuse, abuse, negligence or improper use. As with all mechanical devices, the Generac engines  
need periodic part(s) service and replacement to perform well. This warranty will not cover repair when normal use has exhausted the life of a part(s) or engine.  
Failures caused by any external cause or act of God, such as collision, theft, vandalism, riot or wars, nuclear holocaust, fire, freezing, lightning, earthquake,  
windstorm, hail, volcanic eruption, water or flood, tornado or hurricane.  
Damage related to rodent infestation.  
Products that are modified or altered in a manner not authorized by Generac in writing.  
Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any delay in repair or replacement of the defective part(s).  
Failure due to misapplication.  
Telephone, cellular phone, facsimile, internet access or other communication expenses.  
Living or travel expenses of person(s) performing service, except as specifically included within the terms of a specific unit warranty period.  
Expenses related to "customer instruction" or troubleshooting where no manufacturing defect is found.  
Rental equipment used while warranty repairs are being performed.  
Overnight freight costs for replacement part(s).  
Overtime labor.  
Starting batteries, fuses, light bulbs and engine fluids.  
THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. SPECIFICALLY, GENERAC MAKES NO OTHER WARRANTIES AS  
TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow limitations on how long an implied warranty lasts, so the  
above limitation may not apply to you.  
GENERAC'S ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT OF PART(S) AS STATED ABOVE. IN NO EVENT SHALL GENERAC BE LIABLE FOR  
ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF SUCH DAMAGES ARE A DIRECT RESULT OF GENERAC'S NEGLIGENCE. Some states do not  
allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you.  
This warranty gives you specific legal rights. You also have other rights from state to state.  
®
GENERAC POWER SYSTEMS, INC.  
P.O. BOX 297 • WHITEWATER, WI 53190  
36  
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Part No. 0E0226  
06/01/02  
Printed in U.S.A.  
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