OPERATOR’S MANUAL
Record product information to reference when ordering parts or
obtaining warranty coverage.
DUAL FUEL PORTABLE GENERATOR
MODEL NUMBER
H08052
Rev Level:00
P/N:380747010 Rev:01
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .1
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance - Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Troubleshooting- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Parts Diagrams - Parts Lists - Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service - Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
REGISTER YOUR PRODUCT
INTRODUCTION
Thank you for purchasing a FIRMAN generator. You have selected a high-quality, precision engineered
generator set designed and tested to give you years of satisfactory service. This generator is Dual Fuel
and capable of running on gasoline and liquid petroleum gas (LPG). This generator is not intended to
be run unattended or to supply power to life safety support.
This manual contains safety information to make you aware of the hazards and risks associated
with generator products and how to avoid them. This generator is designed and intended only
for supplying electrical power for operating compatible electrical lighting, appliances, tools and
motor loads, and is not intended for any other purpose. It is important that you read and
understand these instructions thoroughly before attempting to start or operate this portable
generator. Save these original instructions for future reference.
All information in this publication is based on the latest production information available at the
time of approval for printing. The manufacturer reserves the right to change, alter or otherwise
improve the generator and this documentation at any time without prior notice.
INTRODUCTION
01
Register your product using the QR code provided or at
www.firmanpowerequipment.com .
02
SIGNAL WORDS
DANGER WARNING CAUTION
Indicates a hazard
which, if not avoided,
will result in death or
serious injury.
Indicates a hazard
which, if not avoided,
could result in death
or serious injury.
Indicates a hazard
which, if not avoided,
could result in minor or
moderate injury.
Toxic Fumes- Engine exhaust contains carbon monoxide, a
poisonous gas that will kill you in minutes. You cannot smell
it or see it.
Fire- Fuel and its vapors are extremely flammable which could
cause burns or fire resulting in death or serious injury.Engine
exhaust could cause fire resulting in death or serious injury.
Hot Surface- Muffler could cause burns resulting in serious injury.
Generator could cause electrical shock resulting in death or serious
injury.
Safety Alert Symbol- Indicates a potential personal injury hazard.
Operator's Manual- Failure to follow warnings, instructions and
operator's manual could result in death or serious injury.
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NOTICE
Indicates information
considered Important,
but not hazard-related.
INTRODUCTION
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WARNING! This product can expose you to chemicals including gasoline engine
exhaust, which is known to the State of California to cause cancer, and carbon
monoxide, which is known to the State of California to cause birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.
This outdoor generator can be used to power outdoor items using extension cords or to restore
home power using a transfer switch. A transfer switch is a separate device installed by a licensed
electrician that allows the portable generator to be cord connected, using either of the 120/240V
receptacles, directly into your home’s electrical system. Install a listed transfer switch as soon as
possible if this generator will be used to restore power to your home.
NOTICE If you have questions about intended use, contact FIRMAN customer service. This portable
generator is designed to be used only with FIRMAN authorized parts.
The generator has a system ground that connects the generator frame components to the ground
terminals on the AC output receptacles. The system ground is connected to the AC neutral wire.
The neutral is bonded to the generator frame.
System Ground
There may be Federal or State regulations, local codes, or ordinances that apply to the intended
use of the generator. Consult a qualified electrician, electrical inspector, or the local agency
having jurisdiction. This generator is not intended to be used at a construction site or similar
activity as defined by NFPA 70-2020 (NEC) section 590.6.
Compliance Requirements
Connections to your home’s electrical system must use a listed* transfer switch installed by a
licensed electrician. The connection must isolate the generator power from the utility power and
comply with all applicable laws and electrical codes.
ToRestoreHomePowerUsingaListedTransferSwitch
Typical
120/240V
Outlet
Transfer
Switch
Typical Indoor Items
To Restore Power Using Extension Cords
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INTRODUCTION
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1. Only use grounded cords marked for outdoor use rated for your loads.
16
14
To provide power using
extension cords
Total
Amperage
Minimum Gauge, Outdoor Rated
Up to 50 FT (15m)
Up to 13A
Up to 15A
Up to 20A
Up to 30A
Up to 50A
Extension cords running directly into the home increase your risk of carbon monoxide
poisoning through any openings.
If an extension cord running directly into your home is used to power indoor items, the
operator recognizes that this increases the risk of CO poisoning to people inside the home
and assumes that risk.
6. Install a listed *transfer switch as soon as possible if this or any generator will be used to restore
power to your home.
*Certified by a Nationally Recognized Testing Laboratory that the product complies to appropriate
product safety test standards.
DANGER! Engine exhaust contains carbon monoxide, a poisonous gas that will kill
you in minutes. You cannot smell it, see it, or taste it. Even if you do not smell exhaust
fumes, you could still be exposed to carbon monoxide gas.
04
6
INTRODUCTION
2. Follow cord safety instructions.
3. Install carbon monoxide alarm(s).
4. When operating portable generator with extension cords, make sure portable generator is located
downwind in an open, outdoor area, at least 20 ft. (6 m.) from occupied spaces with exhaust pointed
away.
5. Extension cords running directly into your home, powering indoor items IS NOT RECOMMENDED.
English Customer Service: 1-844-FIRMAN1
*We are always working to improve our products. Therefore, the enclosed product may differ
slightly from the image on this page.
05
FEATURES AND CONTROLS
Generator
1- Fuel Gauge
2- 8.0 Gallon Capacity Fuel Tank
3- Fuel Cap
4- Choke Lever(behind air filter box)
5- Air Filter
6- 439cc FIRMAN OHV Engine
7- Recoil Starter
8- 10.0" Flat Free Wheel
9- Oil Filler Cap
10- Battery
11- Outlet Cover
12- Control Panel
13- Handle
14- LPG Hose Connector(Inlet)
15. Data Decal / Serial Number
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②
③
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
④
⑬
⑭
⑮
FEATURES AND CONTROLS
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⑩
②
③
④
①
⑤
⑥
⑦
⑧
⑨
FEATURES AND CONTROLS
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FEATURES AND CONTROLS
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⑨
⑩
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NOTICETotal power drawn from all receptacles must not exceed the data decal rating.
Control Panel
2. Indicator Light – When the main fuel selector switch is turned to the GAS or LPG position,
the indicator light will turn RED for up to 4 minutes (before going off). Starting the engine
successfully anytime during the 4 minutes will turn the indicator light GREEN. See Indicator
light-Battery Power Saving Mode section for more information.
5. Circuit Breakers – The receptacles are protected by AC circuit protectors. If the generator is
overloaded or an external short circuit occurs, a circuit protector may trip. If tripping occurs,
disconnect all electrical loads and determine the cause before attempting to continue using the
generator. Reset any tripped circuit protectors.
If multiple receptacles are used at the same time, the total current must be kept with-in the
portable generator data decal rating.
6. 120V, 20A Duplex GFCI (Ground Fault Circuit Interrupter)- NEMA 5-20R
A maximum of 20 Amps current may be drawn from this duplex receptacle.
7. 120V, 30A Twist Lock – NEMA L5-30R(Not GFCI protected)
A maximum of 30 Amps current may be drawn from this receptacle.
8. 120/240V, 30A Twist Lock – NEMA L14-30R(Not GFCI protected)
9. Ground Terminal – Consult an electrician or authority having jurisdiction for local grounding
requirements.
10. 120/240V, 50A – (NEMA 14-50R) (Not GFCI protected)
11. Outlet Cover - Protects the receptacles from dust and debris.
12 . LPG Hose Connector (Inlet: 3/8" Flare Male) – Used to connect LPG hose to generator.
3. Engine Start Switch – To start engine, press and hold the switch in the START (ll) position, the
engine will crank and attempt to start. When the engine starts, release the switch to the RUN (l) position.
4. 3-1 Data-Minder (Multi-Meter) – Push the SELECT button to show the Voltage, Hertz and running hours.
09
FEATURES AND CONTROLS
A maximum of 30 Amps current for 240 Volts or two independent 120 Volt loads at 30 Amps current each.
A maximum of 33.33 Amps current for 240 Volts or two independent 120 Volt loads at 33.33 Amps current each.
12
1. Fuel Selector Switch – Use to select and turn on gasoline or LPG fuel source. Fuel (gasoline) valve is
closed when the switch is on “OFF” or “LPG” positions. Engine switch is on when the switch is on
“GAS” or “LPG” positions.
13
13. CO Alert™ Carbon Monoxide (CO) Shutdown Indicator Light — Indicates the engine shutdown due
to carbon monoxide accumulation around the generator or a CO Alert system fault occurred.
3
4
2
1
11
5
6
7
8
9
10
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OPERATION
1. Location
DANGER! Engine exhaust contains carbon monoxide, a poisonous gas that could kill
you in minutes. You CANNOT smell it, see it, or taste it. Even if you do not smell exhaust
fumes, you could still be exposed to carbon monoxide gas.
Install battery-operated carbon monoxide alarms or plug-in carbon monoxide alarms with
battery back-up according to the manufacturer's instructions. Smoke alarms cannot detect
carbon monoxide gas.
Do not run this portable generator inside homes, garages, basements, crawlspaces, sheds, or
other partially-enclosed spaces even if using fans or opening doors and windows for ventilation.
Carbon monoxide can quickly build up in these spaces and can linger for hours, even after this
product has shut off.
If you start to feel sick, dizzy, weak or your home’s carbon monoxide alarm sounds, get to fresh air
right away. Call emergency services. You may have carbon monoxide poisoning.
Carbon Monoxide Alarm(s)
Install carbon monoxide alarms
inside your home. Without
workin g carbon monoxide
alarms, you will not realize you
are getting sick and dying from
carbon monoxide poisoning.
20 ft. (6 m) min.
To better educate yourself about all carbon monoxide risks,
go to www.takeyourgeneratoroutside.com.
10
Prevent Carbon Monoxide (CO) Poisoning
Use outdoors and downwind at least 20 ft. (6 m) from any home.
Point exhaust away from all homes and occupied spaces.
Install CO alarms inside your home.
Operate portable generator only outdoors and downwind at least 20 ft.(6 m) from occupied
spaces with exhaust pointed away to reduce the risk of carbon monoxide accumulating.
English Customer Service: 1-844-FIRMAN1
Reduce Risk of Fire
WARNING! Exhaust heat/gases could ignite combustibles, structures or damage fuel
tank causing a fire, resulting in death or serious injury.
Keep portable generator at least 5 ft. (1.5m) from any structure, trees or vegetation over 12
in. (30 cm) in height.
Select an outdoor site that is dry and protected from the weather. Do not move portable
generator indoors to protect it from the weather.
Do not locate the portable generator under a deck or other similar structure that may
confine heat and airflow.
5 ft.(1.5m)
min.
5 ft.(1.5m)
min.
20 ft.(6m)min.
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OPERATION
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2, Oil and Gasoline / LPG
Add Engine Oil
We recommend using FIRMAN SAE 10W-30 API SJ oil for best performance. Other high-quality
detergent oils (API SJ or higher) are acceptable. Do not use special additives. Ambient temperature
determines the proper oil viscosity for the engine. Use the chart to select the proper oil for the
outdoor temperature range expected.
NOTICE Do not attempt to crank or start the engine before it has been properly filled with the
recommended type and amount of oil. Damage due to operation with no oil will void your warranty.
Degrees Celsiusº(Outside)
Full Synthetic 5W-30
Degrees Fahrenheitº(Outside)
5W-30 10W-40
10W-30
1.Place generator on a flat, level surface.
2.Clean area around oil fill and remove yellow oil fill cap/dipstick.
3.Wipe dipstick clean.
(H)
DRAIN PLUG
(L)
H
L
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OPERATION
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4. Using oil funnel, slowly pour contents of provided oil bottle into oil fill opening until oil reaches
upper limit "H" mark on the dipstick. Be careful not to overfill. Overfilling could cause engine
starting problems or engine damage.
5.Replace oil fill cap/dipstick and fully tighten.
6.Oil level should be checked prior to each use or at least every 8 hours of operation. Keep oil
level maintained.
The portable generator is equipped with a low oil shutdown. If the oil level drops below the
minimum required level, a sensor will activate an internal switch stopping the engine. If the
engine shuts off and the oil level is within specifications, check to see if generator is sitting at an
angle. Place portable generator on an even surface to correct this. If engine fails to start, the oil
level may not be high enough to deactivate the internal low oil level switch. Make sure the sump is
completely full of oil to the upper limit (H). Do not operate engine until oil level issue is corrected.
Contact Firman customer service.
Low Oil Shutdown
Add Gasoline
WARNING! Fuel and its vapors are extremely flammable which could cause burns or fire
resulting in death or serious injury.
Turn generator engine OFF and let it cool at least 2 minutes before removing fuel cap.
Do Not refuel or move generator when engine is running.
Move generator outdoors prior to adding or draining fuel
Keep fuel away from any ignition sources.
Do not overfill tank, allow space for fuel expansion.
If any fuel spills, wait until it evaporates before starting engine
Check and replace fuel lines, tank, cap, and fittings prior to each use if any damage or leaks
are found.
Fuel must meet these requirements:
Clean, fresh, unleaded gasoline with a minimum of 87 octane.
For high altitude use, see Operation at High Altitude.
Gasoline with no more than 10% ethanol is acceptable.
E10
E15
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OPERATION
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NOTICE Do not mix oil in gasoline or modify engine to run on alternate fuels not described in this
manual. Use of unapproved fuels could damage engine and will not be covered under warranty.
1. Clean area around fuel fill cap, remove cap.
2. Slowly add unleaded fuel to fuel tank. Be careful not to fill above the RED fuel level indicator.
This allows adequate space for fuel expansion.
Red Line Indicator
3. Install fuel cap and let any spilled fuel evaporate before starting engine.
Operation at High Altitude
At altitudes over 5,000 feet(1524 meters), a minimum 85 octane gasoline is acceptable.
Engine power and generator output will be reduced approximately 3.5% for every 1000 feet (305 m)
of elevation above sea level. High altitude may cause hard starting, increased fuel consumption
and sparkplug fouling. To operate at high altitudes FIRMAN can provide a high altitude carburetor
main jet. The alternative main jet and installation instructions can be obtained by contacting
Customer Support. Installation instructions are also available in the Technical Bulletin area of the
FIRMAN website www.firmanpowerequipment.com.
NOTICE Operation using an alternative main jet at elevations lower than the recommended
minimum altitude can damage the engine. For operation at lower elevations, the standard main
jet supplied must be used. Operating the engine with the wrong main jet may increase exhaust
emissions, fuel consumption and reduce performance.
Altitude main jet 1
Altitude main jet 2
439cc
380717004
380717005
Altitude
3000-6000Feet
6000-8000Feet
Operation at High Ambient conditions
Your Firman Power Equipment product is designed and rated for continuous operation at ambient
temperatures up to 104°F (40°C). The generator may be operated at temperatures ranging from
5°F(-15°C) to 122°F(50°C) for short periods. If the generator is exposed to temperatures outside
this range during storage, the generator should be brought back within this range before
op eration . When opera ted above 77°F(25°C) there may be a decrease in powe r.
Maximum wattage and current are subject to and limited by such factors as ambient temperature,
altitude, engine conditions etc.
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OPERATION
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Connecting LPG Fuel
WARNING! Liquid Petroleum gas (LPG) is extremely flammable which could cause
burns or fire resulting in death or serious injury.
Do not place the LPG sources in the path of muffler outlet or near any ignition source.
Keep a fire extinguisher near the generator all the time.
Do not use or store LPG portable sources not in use near generator or in a building, garage
or enclosed area.
All LPG supply/ piping lines must be installed by a qualified plumber.
If you smell gas, close off all gas sources and contact a qualified plumber to inspect and
repair the LPG .
Prior to each days first use spray a soapy water solution on LPG fuel connections to check
for leaks.
Never use a gas container, LPG connector hose or LPG cylinder that appears to be damaged.
Do not connect or disconnect the LPG source in an enclosed area.
LPG is heavier than air and can accumulate in confined / low spaces if there is a leak.
NOTICE If a fuel supply connection is necessary it must be installed in accordance with all local
codes or regulations, or in the absence of local codes or regulations, in accordance with the
National Fuel Gas Code (NFPA 54/ANSI Z223.1) and CSA B149.1 (Natural Gas and Propane
Installation Code), as applicable.If possible the fuel supply connection should be close to the
outdoor operating location. This will reduce the cost of the flexible fuel run. An approved flexible
fuel line must be installed between the generator LPG Hose Connector (Inlet) and the fuel
supply connection.In no case should this information be interpreted to conflict with any local,
state, or national code. If in doubt, always follow local codes.
LPG
Always keep the LPG cylinder in an upright position.
Use only DOT LPG cylinders in vapor service with type 1, right hand ACME threads. Verify the
re-qualification date on the cylinder has not expired.
All new cylinders must be purged of air and moisture prior to filling. The purging process
should be done by your propane gas supplier.
Attach the LPG regulator hose assembly (included) to the LPG hose connector (inlet) on the control
panel of the generator. Tighten the nut with a 19 mm or adjustable wrench. Remove the safety plug
or cap from the LPG cylinder valve. Attach the LPG regulator to the cylinder valve. Do not use a
wrench to tighten LPG cylinder nut. Tighten the nut by hand clockwise to a positive stop. Using a
wrench may damage LPG cylinder components.
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OPERATION
The fuel supply line must always be shut off when the engine is not running. Failure to shut
off fuel may allow fuel to leak at the generator.
English Customer Service: 1-844-FIRMAN1
3. Starting the Generator on Gasoline
1. Before starting the generator, check for loose or missing parts and for any damage which may
have occurred during shipment. Ensure spark plug, muffler, fuel cap, and air cleaner are all in place.
2. Operate portable generator only outdoors and downwind at least 20 ft. (6 m) from occupied
spaces with exhaust pointed away to reduce the risk of carbon monoxide accumulating.
Indicator light - Battery Power Saving Mode
This generator is equipped with an electronic module which consumes battery power. When the
main fuel selector switch is turned to the GAS or LPG position, the indicator light will turn
RED for up to 4 minutes (before going off). Starting the engine successfully anytime during the 4
minutes will turn the indicator light GREEN. If portable generator is not started during this
4-minute period the portable generator will switch to Battery Power Saving Mode to conserve
battery life.
NOTICE Your portable generator is equipped with an internal battery charger that will properly
charge the battery only when the engine is running.
The generator cannot be started in Battery Power Saving Mode. Turn main fuel selector switch to
the off position and back to the GAS or LPG position to reset the RED indicator 4-minute
electronic module.
3. If connected make sure the LPG cylinder knob is fully closed or disconnected.
OPERATION
4. Turn the main fuel selector switch to “GAS” position.
NOTICE When the main fuel selector switch is turned to the GAS position, the indicator light will
turn RED for up to 4 minutes (before going off). Starting the engine successfully anytime during
the 4 minutes will turn the indicator light GREEN. See Indicator light-Battery Power Saving
Mode section for more information.
16
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17
6. Move choke lever located on engine to “START” position. You do not need to choke a warm engine.
(For electric start move to step (8))
7. For recoil start only - Pull the starter cord slowly until resistance is felt and then pull rapidly to
start engine.
8. For electric start only - Flip the engine switch to the START (ll) position for a few seconds and
then release.
3 sec.
OPERATION
5. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
9. Do not over-choke. As soon as engine starts and warms up, slowly move the choke lever to the
RUN position.
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4. Starting the Generator on LPG
1. Before starting the generator, check for loose or missing parts and for any damage which may
have occurred during shipment. Ensure spark plug, muffler, fuel cap, and air cleaner are all in place.
2. Operate portable generator only outdoors and downwind at least 20 ft. (6 m) from occupied
spaces with exhaust pointed away to reduce the risk of carbon monoxide accumulating.
3. Connect the LPG hose with regulator to both LPG cylinder and portable generator LPG Hose
Connector (inlet).
LPG
4. Fully open the LPG cylinder knob.
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OPERATION
10. Allow portable generator to run at no load for a few minutes to stabilize before plugging in
any electrical devices.
NOTICE If engine starts but fails to run, or if portable generator shuts down during operation,
check oil level. See Low Oil Shutdown section for more information.
5. Turn the main fuel selector switch to LPG position.
NOTICE When the main fuel selector switch is turned to the LPG position, the indicator light
will turn RED for up to 4 minutes (before going off). Starting the engine successfully anytime
during the 4 minutes will turn the indicator light GREEN.
See Indicator light-Battery Power Saving Mode section for more information.
English Customer Service: 1-844-FIRMAN1
6. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
7. Move choke lever located on engine to “START” position.
(For electric start move to step (11))
8. For recoil start only - PULL-TO-PRIME Pull the starter cord 1-2 times. Pull slowly until resistance
if felt and then pull rapidly.
1-2 Times
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OPERATION
9.For recoil start only - Move the choke lever to the “RUN” position.
10. For recoil start only - PULL-TO-RUN Pull the starter cord slowly until resistance if felt and pull
rapidly to run the portable generator.
If the engine fails to start in 1-2 pulls with choke in the RUN position, move choke lever to START
position and repeat the PULL-TO-PRIME step (8).
English Customer Service: 1-844-FIRMAN1
11. For electric start only - Flip the engine switch to the START (ll) position for a few seconds and
then release.
12. For electric start only - Move the choke lever to the RUN position.
3sec.
13. Allow portable generator to run at no load for a few minutes to stabilize before plugging in
any electrical devices.
NOTICE If engine starts but fails to run, or if portable generator shuts down during operation,
check oil level. See Low Oil Shutdown section for more information.
NOTICE Observing frost on LPG cylinder and regulator is common during operation and normally
is not an indication of a problem. In unusual situations this frost may eventually restrict the flow of
LPG gas to the generator resulting in deteriorating performance. In these rare situations it can be
helpful to:
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OPERATION
Exchanging fuel cylinders to allow the first cylinder to warm up, repeating as necessary.
Placing the LPG cylinder at the end of the generator near the handle, where engine fan
air flows out from the generator. This air is slightly heated by air flowing over the engine.
Do not place the LPG cylinder in the path of the muffler exhaust outlet.
The LPG cylinder and components can be temporarily warmed by pouring warm water over
them.
Muffler
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This portable generator has been pretested and adjusted to handle its full capacity. The voltage is
regulated using an automatic voltage regulator (AVR) . Readjusting the AVR will void warranty.
5. Connecting Electrical Loads
The duplex receptacle is equipped with GFCI protection. The GFCI protects against electric shock
that may be caused if you become a path which electricity travels to reach earth. Even with a GFCI
you may feel a shock, but the GFCI cuts power quickly so an average person should not suffer any
injury. Manual test GFCI while generator is running to verify internal contacts will function
Push the test button. The reset button will pop out, which should cut power to outlet.
Press the reset button until it locks in the depressed position. If the GFCI does not reset as
described do not use the receptacles. Call Firman customer service.
If GFCI trips while in use, reset and test the outlet. Electric cords laying on the ground with
worn insulation may trip the GFCI, only use cords in good condition.
RESET
TEST
TEST MONTHLY
FOLLOW DIRECTIONS
RESET BUTTON
Receptacle
Outlet
LED Indicator Light
TEST BUTTON
Outlet
In addition to the manual test / reset feature the GFCI receptacle tests itself periodically to
confirm the GFCI electronics are functional. The indicator light will be solid green when the
GFCI is powered from the generator and working correctly.
Self-test indications: If the indicator light is solid orange or flashing red a problem may exist.
Press the TEST button to trip the GFCI. If unable to reset, replace the GFCI.
SELF-TEST OPERATION
Damaged or overloaded extension cords could overheat, arc, and burn resulting death or
serious injury.
Use a ground fault circuit interrupter (GFCI) in any damp or highly conductive area, such as
metal decking.
Do not touch bare wires or receptacles.
WARNING! Generator voltage could cause electrical shock or burn
resulting in death or serious injury.
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OPERATION
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Do not use generator with electrical cords which are worn, frayed, bare or otherwise damaged.
Do not operate generator in the rain or wet weather.
Do not run indoors to avoid wet conditions.
Do not handle generator or electrical cords while standing in water, while barefoot, or while
hands or feet are wet.
Use listed transfer switch to prevent backfeed by isolating generator from electric utility
workers.
1.Ensure circuit breaker on control panel is in the closed (on) position.
2. Start the generator with no electrical load attached.
3. Allow the engine to run for several minutes to stabilize.
4. Plug in and turn on the first item. It is best to attach the item with the largest load first.
5. Allow the engine to stabilize.
6. Plug in and turn on the next item.
7. Allow the engine to stabilize.
8. Repeat steps 5-6 for each additional item.
Surge Protection
There is a remote chance that voltage fluctuations may impair the proper functioning of some
sensitive electronic equipment. Electronic devices, including computers and many programmable
appliances may use components that are designed to operate within a narrow voltage range and
may be affected by the portable generator’s momentary voltage fluctuations. While there is no
way to prevent all voltage fluctuations, you can take steps to protect your sensitive electronic
equipment. Install a plug-in surge suppressor on the receptacles feeding your sensitive equipment.
Surge suppressors come in single or multi-outlet styles. They are designed to protect against short
duration voltage fluctuations.
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OPERATION
CO Alert
Carbon Monoxide (CO) Shutdown System
CO Alert automatically shuts down the engine when harmful levels of carbon monoxide
accumulate around the generator or a CO Alert fault occurs. After shutdown, the CO Alert
indicator light will blink for at least five minutes per the chart below.
CO Alert DOES NOT replace carbon monoxide alarms.
Install battery-powered carbon monoxide alarm(s) in your home. Don’t run generator in enclosed
areas.
Color
Description
Red
Yellow
CO Alert fault occured*.
See FIRMAN authorized service dealer.
*Yellow light will blink for five seconds at the startup of generator to show CO ALERT is functioning
properly.
TM
English Customer Service: 1-844-FIRMAN1
23
OPERATION
6. Stopping the generator
1. Turn off and remove all electrical loads.
Never stop the generator with electrical devices plugged in and turned on.
Never stop the engine by moving the choke to the start position.
Let the generator run at no-load for one minute to stabilize internal temperatures of the engine
and generator.
Carbon monoxide accumulated around generator. Prior
to restart move generator to an open, outdoor area
downwind and at least 20 ft. (6 m) from occupied spaces
with exhaust pointed away. Air out premises (open
windows and doors) before reoccupying property.
Automatic shutoff is an indication generator was
improperly located.
If you start to feel sick, dizzy, weak, or your homes carbon
monoxide alarm sounds while using this product, get to
fresh air right away. Call emergency services. You may
have carbon monoxide poisoning.
English Customer Service: 1-844-FIRMAN1
2. Turn the main fuel selector switch to OFF (O) position.
3. Fully close the LPG cylinder knob .
24
OPERATION
GAS LPG
If a cover is used, do not install until unit has cooled.
NOTICE Disconnect the LPG cylinder from the generator during transportation.
English Customer Service: 1-844-FIRMAN1
Maintenance - Storage
General Recommendations
Regular maintenance will improve the performance and extend the life of the generator. See any
authorized dealer for service.
The generator's warranty 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.
Some adjustments will need to be made periodically to properly maintain your generator.
All service and adjustments should be made at least once each season. Follow the requirements
in the maintenanc shedule chart above.
NOTICE Once a year you should clean or replace the spark plug and replace the air filter. New
spark plugs and clean air filter assure proper fuel-air mixture and help your engine run at peak
performance and last longer.
To be performed by knowledgable/experienced owner or by authorized service center.
*
Check for damage and leaks.
Replace if necessary.
LPG Regulator
/Hose Assy.
MAINTENANCE SCHEDULE
ITEM NOTES
Daily(Before
operation)
Initial
25 hours
Every
50 hours
Every
100 hours
(or annual)
Fittings/
Fasteners
Spark Plug
Engine Oil
Air Filter
Fuel Line
Exhaust
System
Engine
Check condition. Adjust gap
and clean. Replace if necessary.
Check oil level.
Clean, replace if necessary.
Check for leakage. Retighten or
replace gasket if necessary.
Check adjust valve clearance.
Clean combustion chamber.
Check. Replace if necessary.
Check fuel hose for cracks or other
damage. Replace if necessary.
Replace.
Check spark arrester screen.
Clean/Replace if necessary.
Every
250 hours
*
*
Fuel
Clean fuel tank strainer.
Replace if necessary.
25
English Customer Service: 1-844-FIRMAN1
When Transporting Generator
Transport with fuel tank EMPTY or with main fuel valve in OFF position.
Do not tip generator at an angle which causes fuel to spill.
Disconnect LPG fuel hose and securely stow away.
ENGINE MAINTENANCE
To prevent accidental starting, remove and ground spark plug wire before performing any service.
Change Engine Oil
Change engine oil every 100 hours. (for a new engine, change oil after 25 hours.)
If you are using your generator under extremely dirty or dusty conditions, or in extremely hot
weather change the oil more often.
CAUTION! Avoid prolonged or repeated skin contact with used motor oil. Used motor oil has been
shown to cause skin cancer in certain laboratory animals. Thoroughly wash exposed areas with
soap and water.
KEEP OUT OF REACH OF CHILDREN. DON’T POLLUTE. CONSERVE RESOURCES. RETURN USED OIL
TO COLLECTION CENTERS.
(a) On a level surface drain oil into a suitable container by removing the drain plug and the oil
filler cap while the engine is warm.
DRAIN PLUG
(b) Reinstall the drain plug and fill the engine with oil until it reaches the HIGH(H) level on the oil
filler dipstick.
(H)
DRAIN PLUG
(L)
NOTICE We recommend using FIRMAN SAE 10W-30 API SJ oil for best performance. Other high-
quality detergent oils (API SJ or higher) are acceptable. See Oil and Gasoline / LPG
26
Maintenance - Storage
English Customer Service: 1-844-FIRMAN1
Air Filter Maintenance
(a) Carefully remove foam air filter element and wash it with liquid detergent and water only.
Squeeze dry in a clean cloth.
(b) Saturate foam air filter element with clean engine oil and squeeze in a clean cloth to remove
excess oil.
Spark Plug Maintenance
Changing the spark plug will help your engine start easier and run at peak performance.
(a) Remove the spark plug boot.
(b) Remove spark plug using provided wrench.
A
B
A- Spark plug
B- Spark plug boot
27
( c) Reinstall clean or new air filter element.
Maintenance - Storage
English Customer Service: 1-844-FIRMAN1
( c) Inspect spark plug for damage and clean with a wire brush before reinstalling. Replace if
damaged.
Maintenance Valve Clearance
- Intake: 0.004 - 0.006 in. (0.1 - 0.15 mm)
- Exhaust: 0.004 - 0.006 in. (0.1 - 0.15 mm)
Muffler and Spark Arrester
WARNING! Contact with muffler area could cause burns resulting in serious injury.
Do not tough hot parts.
It is a violation of California Public Resource Code, Section 4442, to use or operate the engine
on any forest-covered, brush-covered, or grass-covered land unless the exhaust system is
equipped with a spark arrester, as defined in Section 4442, maintained in effective working
order. Other states or federal jurisdictions may have similar laws, reference Federal
Regulation 36 CFR Part 261.52.
28
Maintenance - Storage
SPARK PLUG: FIRMAN P/N 330723001 or CHAMPION N9YC
(d-1) For spark plug FIRMAN P/N 330723001 - Adjust the electrode gap to 0.020 - 0.024 in. ( 0.5 - 0.6 mm).
(d-2) For spark plug CHAMPION N9YC - Adjust the electrode gap to 0.028 - 0.031 in. ( 0.7 - 0.8 mm).
(e) Seat spark plug in position and thread by hand to prevent cross threading.
(f) Tighten plug with provided wrench and put the spark plug boot back on spark plug.
0.020-0.024 in.
(0.5-0.6mm)
0.028-0.031 in.
(0.7-0.8mm)
SPARK PLUG: FIRMAN P/N 330723001 SPARK PLUG: CHAMPION N9YC
English Customer Service: 1-844-FIRMAN1
Inspect Muffler and Spark Arrester
1. Inspect the muffler for cracks, corrosion, or other damage.
2. Remove the screws securing the spark arrester in place and the remove it from muffler.
Spark arrester
screen
Flange
Screw
3. Carefully remove the carbon deposits from the spark arrester screen with a wire brush.
3. Replace the spark arrester if it is damaged. If replacement parts are required, make sure to use
only FIRMAN original equipment replacement parts.
4. Position the spark arrester in the muffler and attach with the screws.
NOTICE Failure to clean or replace spark arrester may result in decreased engine performance.
GENERATOR MAINTENANCE
Make certain that the portable generator is kept clean and dry.
Do not expose the unit to excessive dust, dirt, moisture or corrosive vapors.
Do not insert any objects through cooling slots.
Before each use inspect underneath the generator for signs of oil or fuel. Clean any accumulated
debris. Keep area around muffler free from any debris. Use a soft bristle brush to remove dirt or
caked on oil. Use a damp cloth to clean all exterior surfaces.
29
Run the generator at least 30 minutes every month.
Maintenance - Storage
English Customer Service: 1-844-FIRMAN1
Battery Replacement
1. Remove the spark plug boot from spark plug.
2. Remove the nut and bolt from the negative(-) post first, then the positive(+) post.
3. Loosen and remove the wing nuts (A) on the battery holding bracket.
4. Remove the battery and recycle.
5. Install the new battery with the following specification:
12V sealed lead acid 15AH
LXWXH: 7.09X2.95X6.5inch(180X75X165mm)
6. Connect the red positive (+) battery cable to the battery first.
7. Connect the black negative (-) battery cable to the battery second.
8. Cover the posts with boots provided.
9. Install the spark plug boot onto spark plug.
The battery powers the starter motor and control module. This portable generator is equipped
with an automatic battery charging circuit. The battery will receive charging voltage only when
the engine is running. The battery will maintain a proper charge if the portable generator is used
on a regular basis (about once every two weeks). If it is used less frequently, the battery should
be connected to a trickle charger (not included) or battery maintainer (not included) to keep the
battery properly charged. If the battery is not able to start the engine, it can be started manually
only in the GAS position by pulling the engine recoil cord. If the battery voltage is extremely low,
the charging circuit may not be able to re-charge the battery. In this case, the battery must be
connected to a standard automotive style battery charger for re-charging before it can be used.
Battery Charging
30
Maintenance - Storage
A(M6)
English Customer Service: 1-844-FIRMAN1
It is important to prevent gum deposits from forming in essential fuel system components such
as the carburetor, fuel hoses or tank during storage. Alcohol-blended fuels (called gasohol, ethanol
or methanol) 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.
Long Term Storage
When the generator set is being stored for more than one month, follow these instructions to avoid
engine problems:
Do not store fuel near any ignition sources.
When draining fuel move generator outdoors and use a commercially available non-conductive
vacuum siphon. Fuel must be drained into an approved container.
WARNING! Fuel and its vapors are extremely flammable which could cause burns
or fire resulting in death or serious injury.
1-Treat any stored fuel with fuel stabilizer.
2-When storing generator with gasoline in fuel tank, operate the engine for 5-10 minutes to
circulate treated fuel into fuel lines and carburetor before shutdown.
3- There is no need to drain gasoline from the generator fuel tank if fuel stabilizer is added.
4-FUEL STARVATION: If you elect to drain fuel tank move generator outdoors. Once fuel tank is
drained turn main fuel selector switch to GAS position. Start and run the portable generator
outdoors until engine stops from lack of gasoline. This will drain remaining gasoline from tank,
fuel lines, and carburetor.
5-Always turn main fuel selector switch to OFF position prior to storage.
6-Allow the portable generator to cool before cleaning and storage.
7-Change oil .
8-Remove spark plug boot and spark plug. Pour about one teaspoon of engine oil through the
spark plug hole, then slowly pull the recoil starter several times to distribute the oil in the
cylinder. Reinstall the spark plug and attach the spark plug boot. Pull recoil slowly until resistance
is felt. This will close the valves so no moisture enters the engine cylinder.
9-Cover the portable generator and store in a clean, dry place out of direct sunlight and away from
any ignition sources.
Any damage or hazards caused by using improper fuel, improperly stored fuel, and/or improperly
formulated stabilizers, are not covered by manufacturer's warranty.
Do not store gasoline from one season to another season.
31
Maintenance - Storage
Troubleshooting – Specifications
English Customer Service: 1-844-FIRMAN1
Problem Cause Correction
Engine is running, but no
AC output is available.
1. Circuit breaker is open.
2. Fault in generator.
3. Poor connection or defective cord set.
4. Connected device is bad.
1. Reset circuit breaker.
2. Contact authorized service facility.
3. Check and repair.
4. Connect another device that is in
good condition.
Engine runs good at
no-load but “bogs down”
when loads are connected.
1. Short circuit in a connected load.
2. Engine speed is too slow.
3. Shorted generator circuit.
1. Disconnect shorted electrical load.
2. Contact authorized service facility.
3. Contact authorized service facility.
Engine will not start; starts
and runs rough or shuts
down when running.
1. Fuel selector switch set to OFF (O)
position.
3. Low oil level.
4. Dirty air cleaner.
5. Out of gasoline.
6. Stale gasoline.
7. Spark plug wire not connected to
spark plug.
8. Bad spark plug.
9. Water in gasoline.
10. Flooded.
11. Excessively rich fuel mixture.
1. Set fuel selector switch to “GAS”
or “LPG” position.
3. Fill crankcase to proper level or
place generator on level surface.
4. Clean or replace air cleaner.
5. Fill fuel tank with gasoline.
6. Drain fuel tank and carburetor; fill
with fresh gasoline.
7. Connect wire to spark plug.
8. Replace spark plug.
9. Drain gas tank and carburetor; fill
with fresh gasoline.
10. Wait 5 minutes and re-crank engine.
11. Contact authorized service facility.
Engine lacks power.
1. Load is too high.
2. Dirty air filter.
1. Don't Overload Generator
2. Replace air filter.
Engine“hunts”or falters.
1. Carburetor is running too rich or too lean.
1. Contact authorized service facility.
12. Clogged or dirty fuel filter.
4. Clean or replace fuel filter.
12. Clean or replace fuel filter.
3. Clogged or dirty fuel filter.
4. Clogged spark arrester.
3. Clean or replace fuel filter.
4. Clean or replace spark arrester.
2. Clogged or dirty fuel filter.
2. Clean or replace fuel filter.
Engine shuts down when
running.
1. Out of gasoline or LPG.
2. Dirty air cleaner.
3. Low oil level.
1. Fill fuel tank with gasoline or replace
LPG cylinder .
2. Clean or replace air cleaner.
3. Fill crankcase to proper level or place.
generator on level surface.
4. Clogged or dirty fuel filter.
13. Starting battery may have
insufficient charge.
13. Check battery output and charge
battery as necessary.
14. Out of LPG. 14. Replace LPG cylinder.
15. LPG cylinder knob is not open. 15. Fully open LPG cylinder knob .
2. The indicator light is OFF or
flashing red.
2. Must have solid red indicator light
to be able to start the engine.
16. Out of battery power.
16. Start Engine in “GAS” position.
Charge or replace battery.
For all other issues, contact authorized dealer or Firman customer service.
32
1. CO system fault
Engine shuts down and
yellow CO fault light
blinking.
1. Contact authorized FIRMAN
service facility.
SPECIFICATIONS
Model
Rated AC Voltage
Phase
Power Factor
Voltage Regulator
Alternator Type
Running Watts*
Starting Watts
Engine
Engine Type
Displacement
Low Oil Shutdown
Ignition System
Starting System
Fuel
Capacity Fuel Tank
Lubricating Oil Capacity
Carburetor Type
Air Cleaner
P.T.O. Shaft Rotation
120/240V
H08052
8000(GASOLINE)/7250(LPG)
AVR
Single
1
Single Cylinder, 4-Stroke OHV Air Cooled
439cc
Breakless Ignition Type, Flywheel Magneto
Unleaded Automotive Gasoline/LPG
8.0 U.S. Gallons (30.3L)
37.2 oz (1.1L)
Counter Clockwise (Facing P.T.O.)
Float
Brushed
Polyurethane Type
Yes
10000(GASOLINE)/9050(LPG)
FIRMAN
Rated Fequency
60Hz
Oil Type
See “Add Engine Oil” Section
Recoil/Electric Start
English Customer Service: 1-844-FIRMAN1
AC Grounding System
33
Troubleshooting – Specifications
Neutral Bonded To Frame
LPG fuel consumption
3
54.6ft /hr(5.7L/hr)
3
33ft /hr(3.4L/hr)
3
15.6ft /hr(1.6L/hr)
39,000 BTU/h (11,429 W)
82,500 BTU/h (24,176 W) 136,500 BTU/h (40,000 W)
No Load Half Load Full Load
*Generator certified in accordance with CSA (Canadian Standards Association) standard C22.2No. 100-14,
Motors and Generators and complies with PGMA (Portable Generator Manufacturers’ Association) standard
ANSI/PGMA G300-2018, Safety and Performance of Portable Generators.
PARTS DIAGRAM AND PART LIST
H08052 PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
34
439cc DUAL FUEL ENGINE PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
35
H08052 Portable Generator
English Customer Service: 1-844-FIRMAN1
36
Parts Diagrams - Parts Lists - Wiring Diagram
NO.
Part Number
Qty.
Description
NO.
Part Number
Qty.
Description
1
2
3
4
5
6
6.1
6.2
6.3
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
46.1
46.2
46.3
46.4
47
48
48.1
48.2
48.3
48.4
49
50
51
52
53
54
55
56
57
58
58.1
58.2
58.3
58.4
59
60
61
62
63
64
65
66
67
68
69
70
71
71.1
71.2
71.3
71.4
71.5
71.6
71.7
71.8
71.9
71.10
71.11
71.12
71.13
71.14
375718300
357713501
357713524
336713528
357713573
380413501
380713535
380713536
380713503
357713506
357713507
336713525
357713563
380713504
336713519
336713523
336713520
336713522
336713519
357713509
336718309
380713506
336713577
380713507
380713508
336713514
336718301
336713516
336713517
357713523
357713515
336713531
336718302
357713516
336713538
357713517
336713536
357713518
336713534
336713509
336713533
357713520
380713538
357713535
357713592
357713536
357713514
336713559
357413506
336718314
357713538
336713557
336713561
336713558
357713579
336713806
357713711
336713542
357713600
336713549
357713578
336713546
336713547
393713018
317713577
336713807
330713508
380427005
380428300
336713637
380713003
336713636
336713639
336713638
393713016
380713533
330713509
357713546
336713540
380713532
357713531
357713584
336713509
375718301
336713691
380417006
357713532
357713533
336718318
357713585
357713583
336713558
375715002
357713527
357713527
380427006
380417008
357713597
336713841
380427008
Engine Subassembly
Rubber Cap B
Rubber Cap A
Flange Bolt M6×8
Generator Wind Shield
Rotor And Stator Set
Rotor Assy
Stator Assy
Stator Cover
Generator End Cover
Carbon Brush Assembly
Carbon Brush Holder
Bolt &washer Assemblies
AVR
Flange Bolt M5×16
Terminal Block
Bolt M5×16
Ground Wire
Flange Bolt M5×16
Generator End Cover Cap
Flange Bolt M5×12
Flange Bolt M6×200
Nut M5
Side Cover Bolt M5×229
Flange Bolt M10×285
Ground Wire
Flange Bolt M6×12
External Star Washer Ø6
Nut M6
Protector,muff.,back
Holder,muff
Flange Bolt M8×20
Flange Bolt M6×12
Protector,Muff.,side
Holder,Spark Arrester
Arrester,Spark
Protector,Muff.,Front
Nut M8
Lock Washer Ø8
Flat Washer Ø8
Gskt.,ext.
Muff.,assy.
Axle Comp
Wheel
Lock Pin
Washer Ø10
Flange. Bolt M8×16
Support Leg Assembly
Nut M6
Screw&washer Assy M5×14
Support Leg
Rubber, Support
Flange Bolt M6×25
Nut M8
Fuel Tank Assy.
Fuel Filter, Wire Mesh
Fuel Tank
Grommet, Fuel Tank
Washer Tank Buffer
Fuel Cap
Fuel Gauge Assy.
Screw M5×10
Fuel Gauge Display
Bolt M6×20
Clip
Tank Fitting With Filter
Clamp
Hose,fuel 1
Carbon Canister Assy
Carbon Canister
Flange Bolt M6×6
Carbon Canister Shield
Carbon Canister Bracket
Carbon Canister Holder
Flange. Bolt M8×16
Vapor Hose 2
Clip (Ø8.7×8）
Sleeve
Clamp Ø8×6
Vapor Hose 1
Nut M10
Flange Bolt M8×35
Lock Washer Ø8
Washer
Hose Holder
Frame
Isolator 2
Isolator 1
Nut M8
Motor Mount
Frame
Nut M8
Battery Holder
Flange. Bolt M8×50
Flange. Bolt M8×50
Plug
Nut M8
Handle
Red Boot
Cushion
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
2
4
2
2
1
1
1
1
4
1
1
4
7
1
2
1
1
1
2
2
2
1
1
2
2
2
2
2
1
2
1
2
2
2
1
1
1
4
4
1
1
2
1
4
1
1
4
1
1
1
2
1
1
1
2
1
1
1
2
1
2
2
2
2
1
1
1
1
4
2
1
2
1
2
2
2
2
1
1
2
NO.
Part Number
Qty.
Description
NO.
Part Number
Qty.
Description
336713516
380417005
336713824
375718320
380713518
357713588
380713526
330713594
336755002
336713835
357713545
357713546
357713548
357713591
English Customer Service: 1-844-FIRMAN1
37
Parts Diagrams - Parts Lists - Wiring Diagram
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
336718368
375718302
392428300
336713565
380427007
336718314
393713035
357713553
336718329
375728300
336713578
357713569
336713841
357713556
336713611
336713842
336713693
357713607
336713528
380727007
392758302
336718302
357713582
357713590
336718324
336713601
336713583
336718319
336713818
380713524
380417007
336713821
336713822
336713819
375418300
336713826
336713815
330713582
336713827
336755004
336755005
336713828
357713586
336713574
336713573
357713541
357713542
357713543
336713512
336713513
Screw&washer M3×6
Flange Bolt M8×12
CO Module
Screw M5×14
Fuel Hose 2
Nut M6
Battery Pressure Plate
Battery
Flange. Bolt M6×15
Grommet
Nut M5
Screw&washer M5×10
Red Boot
Battery Red Cable +
Boot,Starter
Black Boot
Flange Bolt M6×8
Cover
Cover
Flange Bolt M6×12
Plastic Front Cover
Control Box
Nut M4
Receptacle L14-30R
Receptacle L5-30R
Control Module
Charger
Circuit Breaker 33A
Tapping Screw St2.9×28
Micro Switch 1
Micro Switch 2
Tapping Screw St2.9×19
Main Regulator Assy.
LPG Inlet Cover
Fuel Selector Switch
Screw&washer M4×14
Switch
Switch Cover
Circuit Breaker Cover
Indicator Light
Multi Meter
Outlet Cover TT-30R
Outlet Cover L5-30R
Bolt M6×22
Nut M6
Lock Washer Ø6
Washer Ø6
Battery Cable(female 180mm)
Battery Cable(male 180mm)
External Star Washer Ø6
Control Panel Assy
Fuel Valve Comp.
Screw&washer Assy M4×8
Receptacle 14-50R
5-20R Duplex GFCI
Circuit Breaker Amp 30A
AC 20A Breaker
Indicator Light(CO)
Clamp
Grommet
Sleeve
Grommet
LPG Hose
4
2
1
5
1
2
1
1
3
1
2
2
1
1
1
1
1
1
1
1
1
11
1
1
8
1
1
1
1
1
2
1
2
2
1
1
1
6
1
1
1
1
1
1
2
1
1
2
2
4
1
1
1
2
1
1
1
1
1
2
1
1
1
1
Outlet Cover 5-20R GFCI
FIRMAN 439cc Dual Fuel Engine
English Customer Service: 1-844-FIRMAN1
38
Parts Diagrams - Parts Lists - Wiring Diagram
1
2
2.1
2.2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
NO.
Part Number
Description
Qty.
336718308
357723577
336728300
336728301
357723579
357723580
357723582
393723006
336723589
336723590
336723592
336723591
336723593
357723571
357723572
357723570
336718302
380723511
380723519
367728300
336718311
357723516
357723515
357723514
357723506
357723505
375718321
357723513
357723507
380723501
336723501
357723512
336723526
357723503
380723518
357723501
357723502
336728303
336718301
330723528
336723595
357723586
357723585
336723597
357723584
357723517
357723519
357723518
380723503
380723504
380723505
380723502
375717006
357723544
357723521
375717007
357723528
357723530
NO.
Part Number
Description
Qty.
357723525
357723526
357723527
357723508
357723543
357723542
357723538
336723537
357723532
336723529
336723528
380723507
380723508
357723537
357723536
357723535
357723533
357723534
357723531
380723512
375418302
336713519
357713584
357723567
336723564
336718312
357723565
336723567
357723564
357723562
357723563
357723560
357723561
336713517
357723529
330723001
357723548
357723549
357723550
357723551
380723515
357723554
357423502
357723555
393718310
357723556
357713558
357723558
393728305
393728306
357723559
357713577
336718314
375418307
375418303
375418304
375418305
375418306
3
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
5
1
1
1
2
7
2
1
1
2
2
1
1
1
2
1
2
1
1
2
2
1
4
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
2
4
1
1
1
1
2
2
1
2
2
2
2
1
1
2
2
2
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
3
1
1
2
1
1
1
1
1
1
1
1
1
6
1
1
1
1
1
1
1
1
1
1
1
Flg. Bolt M6×8
Grip,starter
Handle Core
Recoil Starter Knob
Case Comp.,recoil Starter
Spring,starter Return
Pulley,recoil Starter
Cord
Spring,patchet
Patchet,starter
Clip Sprg.,pawl Guide
Pawl Guide
Screw,pawl Guide
Nut, Shaft
Pulley,starter
Fan Cover Comp
Flg. Bolt M6×12
Cooling Fan
Flywheel Comp
Ignition Coil
Flg. Bolt M6×29
Flg. Bolt M8×40
Seal, Oil
Cover,crankcase
Bearing
Bearing
Wire Clip
Oil Dipstick Assy
Balance Shaft
Crankshaft
Locating Pins
Gasket, Crankcase
Flg. Bolt M6×15
Sensor, Engine Oil
Crankcase Comp.
Bolt, Drain Plug
Washer,drain Bolt
Sheath,wire
Flg. Bolt M6×12
Wire Clip
Inner Washer,gear
Gov.,gear Shaft
Gear, Governor
Clip, Govorner Gear
Bushing, Govorner Gear
Rod, Connecting
Pin, Piston
Clip, Piston Pin
Ring,oil
Ring, Second Piston
Ring,first Piston
Piston
Gasket,cyl.head
Locating Pins(φ12×20)
Air Guide Lower
Cylinder Head
Exhaust Valves Stud Bolt
Flg. Bolt M10×80
Bolt
Camshaft Assy.
Tappet, Valve
Push Rod
Bolt, Valve Adjusting
Rocker, Valve
Nut Valve Adjusting
Nut, Valve Lock
Valve,in.take
Valve, Exhaust
Retainer, Valve
Oil Seal,valve
Spring,valve
Retainer, Intake Valve
Retainer, Exhaust Valve
Rotator, Valve
Starter Motor Assembly
Relay Assy
Flange. Bolt M5×16
Flg. Bolt M8×35
Shaft, Governor Arm
Washer8.2×17×0.8
Seal, Oil
Pin, Shaft
Bolt,governor Arm
Arm, Governor
Rod, Governor
Wind Guide, Top
Spring,governor
Nut M6
Breather Tube
Spark Plug
Stud, Intake
Gskt.,insulator
Plate, Carburetor Insulator
Gasket, Carburetor
Carburetor
Gasket, Air Cleaner
Air Cleaner Assy
Elbow, Air Cleaner
Seal
Clapboard
Nut M5
Element, Air Cleaner
Lock I
Lock II
Cover, Air Cleaner
Air Cleaner Bracket
Nut M6
Starter
Crankcase Cover
Ring Assy
Cylinder Head Assy
Gasket Assy
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
76.1
76.2
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
97.1
97.2
97.3
97.4
97.5
97.6
97.7
97.8
98
99
100
101
102
103
104
Spring, Throttle Valve Returning
Cover Subassembly, Cylinder Head
Gasket, Cylinder Head Cover
Plate Subassembly, Lifter Stopper
English Customer Service: 1-844-FIRMAN1
39
Parts Diagrams - Parts Lists - Wiring Diagram
Wiring Diagram
English Customer Service: 1-844-FIRMAN1
FIRMAN Three (3) Year Limited Warranty
Do Not Return the Unit to the Place of Purchase
Contact the FIRMAN Service Center and FIRMAN will troubleshoot any issue via phone or e-mail.
If the problem is not corrected by this method, FIRMAN will, at its option, authorize evaluation,
repair or replacement of the defective part or component at a FIRMAN Service Center. FIRMAN
will provide you with a case number for warranty service. Please keep it for future reference.
Repairs or replacements without prior authorization, or at an unauthorized repair facility, will
not be covered by this warranty.
Normal Wear
Your product needs periodic parts and service to perform well. This warranty does not cover
repair when normal use has exhausted the life of a part or the equipment as a whole.
FIRMAN warrants to the original purchaser that the mechanical and electrical components will be free of
defects in material and workmanship for a period of one(1) year(parts and labor) and three(3) years (parts
and technical support) from the original date of purchase 90 days [parts and labor] and 180 days [parts]
for commercial & industrial use. Transportation charges on product submitted for repair or replacement
under this warranty are the sole responsibility of the purchaser . This warranty only applies to the original
purchaser and is not transferable.
Repair/Replacement Warranty
Warranty Exclusions
This warranty does not cover the following repairs and equipment.
40
SERVICE INFORMATION CONTACT FIRMAN PRODUCT SERVICE DEPARTMENT AT 1-844-347-6261
or at www.firmanpowerequipment.com to obtain warranty service information or to order
replacement parts or accessories.
HOW TO ORDER REPLACEMENT PARTS
Even quality-built equipment such as this electric generator may need occasional
replacement parts to maintain it in good condition over the years. To order replacement parts,
please give the following information:
Model No. Rev. Level and Serial No. found on the Data Decal.
Parts number or numbers as shown in the Parts List section.
A brief description of the trouble with the generator.
Service – Warranty
Warranty Qualifications
Register your product using the QR code provided or at www.firmanpowerequipment.com.
FIRMAN will also register the warranty upon receipt of your Warranty Registration Card and a
copy of your sales receipt from one of FIRMAN’s retail locations as proof of purchase. Please
submit your warranty registration and your proof of purchase within ten(10) days of the date of
purchase.
English Customer Service: 1-844-FIRMAN1
Limits of Implied Warranty and Consequential Damage
FIRMAN disclaims any obligation to cover any loss of time, use of this product, freight, or any
incidental or consequential claim by anyone from using this product. THIS WARRANTY IS IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANT
ABLILITY OR FITNESS FOR A PARTICULAR PURPOSE.
A unit provided as an exchange will be subject to the warranty of the original unit. The length of
the warranty governing the exchanged unit will remain calculated by reference to the purchase
date of the original unit.
This warranty gives you certain legal rights which may change from state to state. Your state may
also have other rights you may be entitled to that are not listed within this warranty.
Contact Information
You may contact FIRMAN at:
Address
Firman Power Equipment Inc.
Attn: Customer Service
8644 W. Ludlow Dr.
Peoria, AZ 85381
www.firmanpowerequipment.com
We are FIRMAN POWER - And we are here for you.
41
Installation, Use and Maintenance
This warranty will not apply to parts and/or labor if your product is deemed to have been misused,
neglected, involved in an accident, abused, loaded beyond the generator's limits, modified,
installed improperly or connected incorrectly to any electrical component. Normal maintenance is
not covered by this warranty.
Other Exclusions
This warranty excludes:
– cosmetic defects such as paint, decals, etc.
– wear items
– accessory parts
– failures due to acts of God and other force majeure events beyond the manufacturer’s control
– problems caused by parts that are not original FIRMAN parts
– units used for prime power in place of existing utility power where utility is present or in place
of utility power where utility power service does not normally exist.
Service – Warranty
English Customer Service: 1-844-FIRMAN1
CALIFORNIA AND FEDERAL EXHAUST AND EVAPORATIVE EMISSIONS CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS
FIRMAN POWER EQUIPMENT INC.
Emission Control System Warranty
The warranty period begins on the date the engine/equipment is delivered to an ultimate purchaser. FIRMAN warrants to the ultimate
purchaser and each subsequent purchaser that the engine is:
Designed, built, and equipped so as to conform with all applicable regulations adopted by the Air Resources Board and US EPA;
and Free from defects in materials and workmanship that cause the failure of a warranted part to be identical in all material
respects to the part as described in the engine manufacturers application for certification.
The warranty on emissions-related parts is as follows:
(1) Any warranted part that is not scheduled for replacement as required maintenance in the owner's manual supplied, is
warranted for the warranty period stated above. If any such part fails during the period of warranty coverage, the part will be
repaired or replaced by FIRMAN at no charge to the owner. Any such part repaired or replaced under the warranty will be
warranted for the remaining warranty period.
(2) Any warranted part that is scheduled only for regular inspection in the owner's manual supplied, is warranted for the warranty
period stated above. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period.
(3) Any warranted part that is scheduled for replacement as required maintenance in the owner's manual supplied, is warranted
for the period of time prior to the first scheduled replacement point for that part. If the part fails prior to the first scheduled
replacement, the part will be repaired or replaced by FIRMAN at no charge to the owner. Any such part repaired or replaced
under warranty will be warranted for the remainder of the period prior to the first scheduled replacement point for the part.
(4) Repair or replacement of any warranted part under the warranty must be performed at no charge to the owner at a warranty
station.
(5) Notwithstanding the provisions of Subsection (4) above, warranty services or repairs must be provided by FIRMAN that
are franchised to service the subject engines.
(6) The owner must not be charged for diagnostic labor that leads to the determination that a warranted part is in fact defective,
provided that such diagnostic work is performed at a warranty station.
(7) FIRMAN is liable for damages to other engine components proximately caused by a failure under warranty of any
warranted part.
MANUFACTURER'S WARRANTY COVERAGE:
The exhaust and evaporative emissions control system on your small off-road engine and engine powered equipment is warranted
for two years. If any emissions-related part on your small off-road engine and engine powered equipment is defective, the part will
be repaired or replaced by FIRMAN.
The California Air Resources Board, US Environmental Protection Agency (“US EPA”) and FIRMAN POWER EQUIPMENT
INC.(FIRMAN) are pleased to explain the emissions control systems warranty on your 2022-2023 or later Small Off-Road
Engine (“SORE”) and engine powered equipment. In California, new equipment that use small off-road engines must be
designed, built and equipped to meet the State’s stringent anti-smog standards. FIRMAN must warrant the emissions control
systems on your SORE and engine powered equipment for the periods of time listed below provided there has been no abuse,
neglect or improper maintenance of your small off-road engine or equipment leading to the failure of the emissions control system.
Your emissions control system may include parts such as the carburetor or fuel-injection system, the ignition system, catalytic
converter, fuel tanks, fuel lines (for liquid fuel and fuel vapors), fuel caps, valves, canisters, filters, clamps and other associated
components. Also included may be hoses, belts, connectors, and other emission-related assemblies.
Where a warrantable condition exists, FIRMAN will repair your SORE and engine powered equipment at no cost to you
including diagnosis, parts and labor.
OWNER'S WARRANTY RESPONSIBILITIES:
As the SORE and engine powered equipment owner, you are responsible for the performance of the required maintenance
listed in your operator's manual. FIRMAN recommends that you retain all receipts covering maintenance on your SORE and
engine powered equipment, but FIRMAN cannot deny warranty coverage solely for the lack of receipts or for your failure to
ensure the performance of all scheduled maintenance.
As the SORE and engine powered equipment owner, you should however be aware that FIRMAN may deny you warranty
coverage if your small off-road engine or engine powered equipment or a part has failed due to abuse, neglect, or improper
maintenance or unapproved modifications.
You are responsible for presenting your small off-road engine and engine powered equipment to a FIRMAN distribution center
or service center as soon as the problem exists. The warranty repairs shall be completed in a reasonable amount of time,
not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should contact FIRMAN at 1-844-347-6261
or support@firmanpowerequipment.com.
FIRMAN Emission Control Defects Warranty Provisions
42
Service – Warranty
English Customer Service: 1-844-FIRMAN1
PARTS COVERED BY WARRANTY
Limitations
Listed below are the parts (if equipped) covered by the Federal and California Emission Control System Warranty.
This Emission Control System Warranty shall not cover any of the following:
(a) Consequential damages such as loss of time, inconvenience, loss of use of the engine or equipment, etc.
(b) Diagnosis and inspection fees that do not result in eligible warranty service being performed.
1. Ignition system including:
- Spark plug
- Ignition coil
2. Fuel metering system:
- Fuel tank
- Fuel cap
- Fuel lines(for liquid fuel and fuel vapors) and
related fittings/clamps
- Fuel regulator, carburetor and internal parts.
3. Catalytic muffler assembly including:
- Exhaust manifold
- Catalytic converter
- Muffler gasket
-pulse valve
4. Air induction system including:
- Intake pipe/manifold
- Air cleaner
5. Crankcase breather assembly including:
- Breather connection tube
6. Fuel tank evaporative emission control system including:
- Purge valves
- Carbon canister
- Vapor hoses and fitting/clamps
FIRMAN POWER EQUIPMENT INC.
www.firmanpowerequipment.com
(8) Throughout the emissions warranty period defined in Subsection (b)(2), FIRMAN will maintain a supply of warranted
parts sufficient to meet the expected demand for such parts.
(9) Any replacement part may be used in the performance of any warranty maintenance or repairs and must be provided without
charge to the owner. Such use will not reduce the warranty obligations of the manufacturer.
(10) Add-on or modified parts that are not exempted by the Air Resources Board may not be used. The use of any non-exempted
add-on or modified parts by the ultimate purchaser will be grounds for disallowing a warranty claim.
The manufacturer will not be liable to warrant failures of warranted parts caused by the use of a non-exempted add-on or modified
part.
43
Service – Warranty
P/N:380747010 Rev:01
All rights reserved. Any reprinting or unauthorized use
without the written permission is expressly prohibited.
TM
FIRMAN POWER EQUIPMENT INC.
8644 W. LUDLOW DR.
PEORIA, AZ 85381
1-844-347-6261
WWW.FIRMANPOWEREQUIPMENT.COM
