Section 6 – Warranty .................................. Back Cover
INTRODUCTION
DANGER
Thank you for purchasing this model of the GP Series portable
generator 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 on job sites, or
remote locations where no utility power is available or in place of utility
power due to a power outage.
READ THIS MANUAL THOROUGHLY
If any portion of this manual is not understood, contact the nearest
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 personnel to special instructions about a particular
operation that may be hazardous if performed incorrectly or carelessly.
Observe them carefully. Their definitions are as follows:
DANGER
After this heading, read instructions that, if
not strictly complied with, will result in serious
personal injury, including death and/or property
damage.
After this heading, read instructions that, if not
strictly complied with, may result in serious
personal injury and/or property damage.
After this heading, read instructions that, if not
strictly complied with, could result in damage to
equipment and/or property.
NOTE:
After this heading, 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.
Four commonly used safety symbols accompany the DANGER, WARNING and CAUTION blocks. The type of information each
indicates is as follows:
This symbol points out important safety
information that, if not followed, could endanger
personal safety and/or property of others.
This symbol points out potential explosion
hazard.
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
manual and thoroughly understand all instructions before using
the 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.
DANGER
Using a generator indoors WILL KILL YOU IN
MINUTES. Exhaust contains carbon monoxide, a
poison gas you cannot see or smell.
DANGER
Using a generator indoors WILL KILL YOU IN MINUTES. Exhaust contains
carbon monoxide, a poison gas you cannot see or smell.
NEVER use in the home or in partly enclosed areas such as garages.
ONLY use outdoors and far from open windows, doors and vents.
Always disconnect the spark plug wire and
place the wire where they cannot contact the
spark plug to prevent accidental starting when
setting up, transporting, adjusting or making
repairs to the generator.
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.
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 the area.
Do not use worn, bare, frayed or otherwise damaged electrical •
cord sets with the generator.
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.
Never add fuel while unit is running.
Do not overfill the fuel tank. Always allow room
for fuel expansion. If tank is over-filled, fuel can
overflow onto a hot engine and cause FIRE or
an EXPLOSION.
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.
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.
1
IMPORTANT SAFETY INSTRUCTIONS
Portable Generator System
SAVE THESE INSTRUCTIONS – The manufacturer suggests that these rules for safe operation be copied and posted near the unit's
installation site. Safety should be stressed to all operators and potential operators of this equipment.
DANGER
Allow at least five (5) feet, or greater, of clearance on all
sides of generator. Never operate the unit inside any room
or enclosure.
NEVER operate the generator indoors, in an attached garage
or near an open window.
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.
Do not insert objects through unit's cooling slots.•
Never operate generator: • in rain; indoors or 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.
Study these SAFETY RULES carefully before installing, operating or
servicing this equipment. Become familiar with this 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.
The engine exhaust from this product contains
chemicals known to the state of California to cause
cancer, birth defects or other reproductive harm.
This product contains or emits chemicals
known to the state of California to cause
cancer, birth defects or other reproductive harm.
The manufacturer cannot anticipate every possible circumstance that
might involve a hazard. The warnings in this manual, and on tags and
decals affixed to the unit are, therefore, not all inclusive. If using a
procedure, work method or operating technique that the manufacturer
does not specifically recommend, ensure that it is safe for others. Also
make sure the procedure, work method or operating technique utilized
does not render the generator unsafe.
2
WARNING:
WARNING:
Despite the safe design of this generator,
operating this equipment imprudently,
neglecting its maintenance or being careless
can cause possible injury or death. Permit only
responsible and capable persons to operate or
maintain this equipment.
Potentially lethal voltages are generated by
these machines. Ensure all steps are taken to
render the machine safe before attempting to
work on the generator.
Parts of the generator are rotating and/or hot
during operation. Exercise care near running
generators. Do not touch hot surfaces such as
the muffler. Severe burns can occur on contact.
Allow generator to cool before touching.
GENERAL HAZARDS
Never operate in an enclosed area or indoors.•
For safety reasons, the manufacturer recommends that the •
maintenance of this equipment is carried out by an 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 properly maintained. Do nothing that
might render the exhaust system unsafe or in noncompliance with
any local codes and/or standards.
Keep hands, feet, clothing, etc., away from drive belts, fans, and •
other moving or hot parts. Never remove any 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 physically or mentally fatigued.
Inspect the generator regularly, and contact the nearest Authorized •
Dealer for parts needing repair or replacement.
Before performing any maintenance on the generator, disconnect •
its battery cables (if equipped) 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.
Do NOT operate generator in the rain.•
IMPORTANT SAFETY INSTRUCTIONS
Portable Generator System
ELECTRICAL HAZARDS
All generators covered by this manual produce dangerous electrical •
voltages and can cause fatal electrical shock. Utility power delivers
extremely high and dangerous voltages as does the generator
when it is in operation. Avoid contact with bare wires, terminals,
connections, etc., while the unit is running. Ensure all appropriate
covers, guards and barriers are in place before operating the
generator. If work must be done around an operating unit, stand on
an insulated, dry surface to reduce shock hazard.
Do not handle any kind of electrical device while standing in water, •
while barefoot, or while hands or feet are wet. DANGEROUS
ELECTRICAL SHOCK MAY RESULT.
The National Electrical Code (NEC) requires the frame and external •
electrically conductive parts of the generator to be connected to an
approved earth ground. Local electrical codes also may require
proper grounding of the generator electrical system.
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.
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.
EXPLOSION HAZARDS
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.
Gasoline vapors are extremely FLAMMABLE and 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. Always reference the latest revision
available for the standards listed.
1. NFPA No. 70, NFPA HANDBOOK OF NATIONAL ELECTRIC
CODE.
2. Article X, NATIONAL BUILDING CODE, available from the
American Insurance Association, 85 John Street, New York, N.Y.
10038.
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.
5. NFPA No. 30, FLAMMABLE AND COMBUSTIBLE LIQUIDS
CODE.
FIRE HAZARDS
For fire safety, the generator must be operated and maintained •
properly. Operation must always 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 the 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 portable generator electric system. Keep
the extinguisher properly charged and be familiar with its use. If
there are any questions pertaining to fire extinguishers, consult the
local fire department.
Avoid spilling gasoline on a hot engine. NEVER add fuel while the •
unit is running. DO NOT overfill the fuel tank. Always allow room
for fuel expansion.
3
Section 1 – General Information
Portable Generator System
1.1 UNPACKING
Remove all packaging material.•
Remove separate accessory box.•
Remove the generator from carton.•
1.1.1 ACCESSORY BOX
Check all contents. If any parts are missing or damaged locate an
authorized dealer at 1-888-436-3722.
The generator requires some assembly prior to using it. If problems
arise when assembling the generator, please call the Generator
Helpline at 1-888-436-3722.
Figure 1 – Wheel Assembly
FOOT
FOOT SUPPORT
Figure 2 – Install Handle Kit
1.2.1 ASSEMBLING THE ACCESSORY KIT
The wheels are designed into the unit to greatly improve the portability
of the generator.
NOTE:
The wheels are not intended for over-the-road use.
1. Refer to Figure 1 and install Wheels as follows:
• Slide the 1/2” Axle Bolt through the Wheel and Wheel bracket
on frame.
2. Refer to Figure 1 and install Frame Foot and Rubber Feet as
shown.
• Slide Rubber Foot stud through Frame Foot; Install 5/16”
Locking Flange Nuts Slide 5/16” Bolt through 5/16” Flat Washer
and then through holes in Frame Rail.
3. Refer to Figure 2 and install Handles as shown.
• Remove top Curved Head Bolts and Cap Nuts (Cap Nuts will
be re-used).
• Slide Handle Assembly over Frame Tube, aligning 2 holes.
• Slide 5/16” Carriage Bolts through; Install 5/16” Cap Nuts.
2.1 KNOW THE GENERATOR
Read the Owner’s Manual and Safety Rules before operating this
generator.
Compare the generator to Figures 3 through 5 to become familiarized
with the locations of various controls and adjustments. Save this
manual for future reference.
power for the operation of 120 Volt AC, 20 Amp, single-phase, 60
Hz electrical lighting, appliance, tool and motor loads.
2. 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.
3. Circuit Breakers (AC) – Each receptacle is provided with a
push-to-reset circuit breaker to protect the generator against
electrical overload.
4
Section 2 – Operation
Portable Generator System
Figure 3 - Control Panel
4. Hourmeter – Tracks hours of operation.
5. Air Filter – Filters intake air as it is drawn into the engine.
6. Choke Knob – Used when starting a cold engine.
7. Fuel Tank – Tank holds 6.6 U.S. gallons of fuel.
8. Grounding Lug – Ground the generator to an approved earth
ground here. See "Grounding the Generator" for details.
9. Run/Stop Switch – Controls the operation of the generator.
10. Muffler – Quiets the engine.
11. Handles – Pivot and retract for storage. Press the spring-loaded
button to move handles.
12. Gas Cap – Fuel fill location.
13. Fuel Gauge – Shows fuel level in tank.
14. Oil Fill – Add oil here.
15. Recoil Starter – Use to start engine manually.
16. Fuel Shut Off – Valve between fuel tank and carburetor.
17. Oil Drain – Use to drain engine oil.
Figure 4 - Generator Controls
Figure 5 - Generator Controls
2.2 HOURMETER
The Hourmeter tracks hours of operation for scheduled maintenance:
There will be a "CHG OIL" message every 100 hours. The message
will flash one hour before and one hour after each 100 hour interval,
again providing a two hour window to perform service.
This message will actually begin flashing at 99 hours and disable itself
at 101 hours providing a two hour window to perform the service.
Every 200 hours the "SVC" icon on the lower left hand corner of the
display will flash. The message will flash one hour before and one
hour after each 200 hour interval providing a two hour window to
perform service.
When the hour meter is in the Flash Alert mode, the maintenance
message will always alternate with elapsed time in hours and tenths.
The hours will flash four times, then alternate with the maintenance
message four times until the meter resets itself.
This is a 120 Volt outlet protected against overload by a 20 Amp
push-to-reset circuit breaker (Figure 6). 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 6 - 120 Volt AC, 20 Amp, Duplex Receptacle
2.4 HOW TO USE THE GENERATOR
If there are any problems operating the generator, please call the
generator helpline at 1-888-436-3722.
2.4.1 GROUNDING THE GENERATOR
The National Electrical Code requires that the frame and external
electrically conductive parts of this generator be properly
connected to an approved earth ground (Figure 8). Local electrical
codes may also require proper grounding of the unit. For that purpose,
connecting a No. 10 AWG (American Wire Gauge) stranded copper
wire to the grounding lug 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 the area.
Figure 8 - Grounding the Generator
2.3.2 120/240 VAC, 30 AMP RECEPTACLE
Use a NEMA L14-30 plug with this receptacle (rotate to lock/unlock).
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) (Figure 7).
Figure 7 - 120/240 VAC, 30 Amp Receptacle
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-toreset circuit breakers.
6
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.
2.4.2 CONNECTING ELECTRICAL LOADS
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.•
Plug in and turn on the desired 120 or 240 Volt AC, single phase, •
60 Hz electrical loads.
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".
10 W- 30
SA E 30
Sy nt he ti c 5W -3 0
Section 2 – Operation
Portable Generator System
2.5 DON’T OVERLOAD 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.
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 label 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 to allow for high starting wattage when selecting
electrical devices to connect to the generator:
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 is provided to assist in determining
how many items the generator can operate at one time.
NOTE:
All figures are approximate. See data label on appliance for
wattage requirements.
Prior to operating the generator, engine oil and gasoline will need to
be added, as follows:
2.7.1 ADDING ENGINE OIL
All oil should meet minimum American Petroleum Institute (API)
Service Class SJ, SL or better. Use no special additives. Select the
oil's viscosity grade according to the expected operating temperature
(also see chart).
Above 40° F, use SAE 30•
Below 40° F and down to 10° F, use 10W-30•
Below 10° F, use synthetic 5W-30•
SAE 30
10W-30
Synthetic 5W-30
7
Section 2 – Operation
Portable Generator System
Any attempt to crank or start the engine before
it has been properly serviced with the
recommended oil may result in an engine
failure.
Place generator on a level surface.•
Clean area around oil fill and remove oil fill cap and dipstick.•
Wipe dipstick clean.•
Slowly fill engine with oil through the oil fill opening until it reaches •
the full mark. Stop filling occasionally to check oil level. Be
careful not to over fill.
Install oil fill cap and finger tighten securely.•
Check engine oil level before starting each time thereafter.•
2.7.2 ADDING GASOLINE
DANGER
Never fill fuel tank indoors. Avoid spilling
gasoline on hot engine. Never fill fuel tank
when engine is running or hot. DO NOT light a
cigarette or smoke when filling the fuel tank.
Gasoline is highly flammable and its vapors are
explosive.
IMPORTANT: 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 the "Storage"
section. Never use engine or carburetor cleaner products in the fuel
tank as permanent damage may occur.
2.8 TO START THE ENGINE
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 (Figure 10).
Figure 10 - Fuel Shut-off Valve
Do not overfill the fuel tank. Always leave room
for fuel expansion. If the fuel tank is over-filled,
fuel can over flow onto hot engine and cause an
explosion.
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. Fill to bottom of •
screen filter. Be careful not to overfill (Figure 9).
Install fuel cap and wipe up any spilled gasoline. •
Figure 9 - Fuel Tank
Fuel Tank
Fuel
DO NOT Fill Above Lip
Turn engine RUN/STOP switch to • ON position (Figure 11).
Pull engine CHOKE knob outward to • FULL CHOKE position
(Figure 11).
To start engine, firmly grasp the recoil handle and pull slowly until •
increased resistance is felt. Pull rapidly up and away.
When engine starts, move choke knob to • 1/2-CHOKE position until
engine runs smoothly and then fully into RUN position. If engine
falters, move choke back out to 1/2-CHOKE position until engine
runs smoothly and then to RUN position.
NOTE:
If engine fires, but does not continue to run, move choke lever to
FULL CHOKE and repeat starting instructions.
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