OPERATOR’S MANUAL
Record product information to reference when ordering parts or
obtaining warranty coverage.
TRI-FUEL PORTABLE GENERATOR
MODEL NUMBER
T09376
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .1
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Maintenance - Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Parts Diagrams - Parts Lists - Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Service - Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
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 Tri-Fuel
and capable of running on gasoline, liquid petroleum gas (LPG), and natural gas (NG). 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
DANGERWARNINGCAUTION
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 70-2023 (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
03
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.
1- Fuel Gauge
2- 9.0 Gallon(34L) Capacity Fuel Tank
3- Fuel Cap
4- Choke Lever(behind air filter box)
5- Air Filter
6- 459cc FIRMAN OHV Engine
7- Recoil Starter
8- 9.0" Flat Free Wheel
9- Oil Filler Cap
10- Battery
11- Outlet Cover
12- Control Panel
13- Data Decal / Serial Number
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*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
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FEATURES AND CONTROLS
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FEATURES AND CONTROLS
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FEATURES AND CONTROLS
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NOTICETotal power drawn from all receptacles must not exceed the data decal rating.
Control Panel
3
4
2
1
5
13. Main Fuel Selector Switch – Use to select and turn on gasoline (GAS) or LPG/NG fuel source.
10. Indicator Light – When the main fuel selector switch is turned to the GAS or LPG/NG 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.
6. 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.
7. 120V, 30A Twist Lock – NEMA L5-30R(Not GFCI protected)
A maximum of 30 Amps current may be drawn from this receptacle.
8. 120V, 20A Duplex GFCI (Ground Fault Circuit Interrupter)- NEMA 5-20R
A maximum of 20 Amps current may be drawn from this duplex receptacle.
4. 120/240V, 50A – (NEMA 14-50R) (Not GFCI protected)
12. Engine 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.
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 38.75 Amps current for 240 Volts or two independent 120 Volt loads at 38.75 Amps current each.
11. 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.
6
2. LPG/NG Hose Connector (Inlet: 3/8" Flare Male) – Used to connect LPG/NG hose to generator.
3. 3-1 Data-Minder (Multi-Meter) – Push the SELECT button to show the Voltage, Hertz and running hours.
9. Ground Terminal – Consult an electrician or authority having jurisdiction for local grounding
requirements.
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1. LPG/NG Selector Switch – Used to select LPG and NG.
13
5. 120/240V, 30A Twist Lock – NEMA L14-30R(Not GFCI protected)
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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
working 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.
11
OPERATION
Connect the Battery
NOTICE Be sure to connect the battery
before attempting to start the generator.
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2, Oil and Gasoline / LPG/ NG
Add Engine Oil
We recommend using SAE 10W-30 API SL or higher oil for best performance. 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-3010W-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
13
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.
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
459cc
393717004
393717005
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
operation. When operated above 77°F(25°C) there may be a decrease in power.
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/ NG Fuel
WARNING! Liquid Petroleum gas (LPG) and Natural Gas (NG) are extremely
flammable which could cause burns or fire resulting in death or serious injury.
Do not place the LPG/NG 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/NG portable sources not in use near generator or in a building, garage
or enclosed area.
All LPG/NG 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 or NG system.
Prior to each days first use spray a soapy water solution on LPG/NG fuel connections to check
for leaks.
Never use a gas container, LPG/ NG connector hose, LPG cylinder or NG source that appears
to be damaged.
Do not connect or disconnect the LPG/ NG 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/NG 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.
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Connect the locally approved flexible fuel supply line (not included) to the LPG/NG connector (inlet)
on the control panel and the fuel Source. We recommend you use FIRMAN 25ft (7.62m) Quick Connect
Hose Kit (Model 1815) or 10ft (3m) Quick Connect Hose Kit (Model 1805) for Natural Gas (NG)
connection (This item is not included). Hose requirements may vary in different regions depending on
local codes. Contact your local licensed plumber to ensure complete compliance with all codes. Make
sure the NG source location and hose used allows the portable generator to be located at least 20ft (6m)
from any occupied spaces.
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.
16
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/NG 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/NG position to reset the RED indicator 4-minute
electronic module.
3. If connected make sure the LPG cylinder knob or the NG source valve are fully closed or
disconnected.
CLOSE
OPERATION
NG Shut Off Valve
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17
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.
5. 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. You do not need to choke a warm engine.
(For electric start move to step (9))
8. For recoil start only - Pull the starter cord slowly until resistance is felt and then pull rapidly to
start engine.
OPERATION
6. Turn the engine switch to the “ON”(I) position.
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10. Do not over-choke. As soon as engine starts and warms up, slowly move the choke lever to the
RUN position.
11. 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.
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/NG Hose
Connector (inlet).
LPG
4. Fully open the LPG cylinder knob.
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OPERATION
9. For electric start only - Flip the engine switch to the START (ll) position for a few seconds and
then release.
3 sec.
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6. Turn the LPG/NG selector switch to LPG position.
5. Turn the main fuel selector switch to LPG/NG position.
NOTICE When the main fuel selector switch is turned to the LPG/NG 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.
7. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
8. Move choke lever located on engine to “START” position.
(For electric start move to step (12))
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OPERATION
9. Move choke lever located on engine to “START” position. You do not need to choke a warm engine.
(For electric start move to step (11))
8. Turn the engine switch to the “ON”(I) position.
11.For recoil start only - Move the choke lever to the “RUN” position.
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12. 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 (10).
13. For electric start only - Flip the engine switch to the START (ll) position for a few seconds and
then release.
14. For electric start only - Move the choke lever to the RUN position.
3 sec.
15. 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.
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OPERATION
10. 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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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
5. Starting the Generator on NG
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 NG hose to both the NG source and portable generator LPG/NG Hose Connector (inlet).
NG Shut Off Valve
4. Fully open the NG source valve.
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OPERATION
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:
English Customer Service: 1-844-FIRMAN1
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OPERATION
6. Turn the LPG/NG selector switch to NG position.
5. Turn the main fuel selector switch to LPG/NG position.
NOTICE When the main fuel selector switch is turned to the LPG/NG 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.
7. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
9. Move choke lever located on engine to “START” position. You do not need to choke a warm engine.
(For electric start move to step (11))
8. Turn the engine switch to the “ON”(I) position.
English Customer Service: 1-844-FIRMAN1
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.
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OPERATION
11.For recoil start only - Move the choke lever to the “RUN” position.
12. 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 (9).
13. For electric start only - Flip the engine switch to the START (ll) position for a few seconds and
then release.
14. For electric start only - Move the choke lever to the RUN position.
3 sec.
15. Allow portable generator to run at no load for a few minutes to stabilize before plugging in
any electrical devices.
10. 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
English Customer Service: 1-844-FIRMAN1
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.
6. 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.
24
OPERATION
English Customer Service: 1-844-FIRMAN1
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.
25
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.
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
26
OPERATION
English Customer Service: 1-844-FIRMAN1
3. Turn the main fuel selector switch to OFF (O) position.
4. Fully close the LPG cylinder knob and NG source valve.
27
CLOSE
OPERATION
7. 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.
2. Turn the engine switch to OFF (O) position.
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 maintenance 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
ITEMNOTES
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.
√
28
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/ NG 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 SAE 10W-30 API SL or higher oil for best performance. Do not use
special additives. See Oil and Gasoline / LPG/ NG
29
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
30
( 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.
(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.
SPARK PLUG: FIRMAN P/N 330723001 or CHAMPION N9YC
Maintenance Valve Clearance
Intake: 0.005 – 0.007 in. (0.13 – 0.17 mm)
Exhaust: 0.007 – 0.009 in. (0.18 – 0.22 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.
31
Maintenance - Storage
(d-1) For spark plug FIRMAN P/N 330723001 - Adjust the electrode gap to 0.020 - 0.024 in. ( 0.5 - 0.6 mm).
0.020-0.024 in.
(0.5-0.6mm)
0.028-0.031 in.
(0.7-0.8mm)
SPARK PLUG: FIRMAN P/N 330723001SPARK PLUG: CHAMPION N9YC
English Customer Service: 1-844-FIRMAN1
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.
32
Run the generator at least 30 minutes every month.
Maintenance - Storage
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.
3. Carefully remove the carbon deposits from the spark arrester screen with a wire brush.
4. Replace the spark arrester if it is damaged. If replacement parts are required, make sure to use
only FIRMAN original equipment replacement parts.
5. Position the spark arrester on the muffler and attach with the screws.
NOTICE Failure to clean or replace spark arrester may result in decreased engine performance.
Spark arrester
screen
Flange
Screw
English Customer Service: 1-844-FIRMAN1
Battery Replacement
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
33
Maintenance - Storage
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 fasteners(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 14AH
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.
English Customer Service: 1-844-FIRMAN1
Long Term Storage
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.Add a properly formulated fuel stabilizer to the gasoline tank.
2.Start the generator as instructed in Starting the Generator section.
3.Run the generator for 5-10 minutes so the treated gasoline cycles through the fuel system.
4.Turn the main fuel selector switch to the “STORAGE OFF” position until the engine stops. This
may take 3-5 minutes. Then turn the fuel selector switch to “OFF(O)” position.
5.Change oil after the engine cools down entirely.
6.Remove spark plug and pour about one teaspoon of engine oil into the cylinder.
7.Pull the starter cord a few times to lubricate the cylinder and then reinstall the spark plug.
8.Cover and store the unit in a clean, dry place out of direct sunlight.
NOTICE 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.
34
Maintenance - Storage
STORAGE OFF
● Run the generator at least 30 minutes every month.
● 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.
It is important to prevent gum deposits from forming in essential fuel system components such
as the carburetor, fuel hoses or tank during storage. Ethanol-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.
When the generator set is being stored for more than one month, follow these instructions to
avoid engine problems:
Troubleshooting – Specifications
English Customer Service: 1-844-FIRMAN1
ProblemCauseCorrection
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/NG” 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/NG.
2. Dirty air cleaner.
3. Low oil level.
1. Fill fuel tank with gasoline or replace
LPG cylinder / check NG supply.
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/NG.14. Replace LPG cylinder/ check NG supply.
15. LPG cylinder knob / NG supply
valve is not open.
15. Fully open LPG cylinder knob / NG
supply valve.
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.
35
Engine shuts down and
yellow CO fault light blinking.
1. CO system fault
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
T09376
9300(GASOLINE)/8300(LPG)/6900(NG)
AVR
Single
1
Single Cylinder, 4-Stroke OHV Air Cooled
459cc
Breakless Ignition Type, Flywheel Magneto
Unleaded Automotive Gasoline/LPG/NG
9.0 U.S. Gallons (34L)
40.6 oz (1.2L)
Counter Clockwise (Facing P.T.O.)
Float
Brushed
Polyurethane Type
Yes
11600(GASOLINE)/10400(LPG)/8650(NG)
FIRMAN
Rated Fequency
60Hz
Oil Type
See “Add Engine Oil” Section
Recoil/Electric Start
English Customer Service: 1-844-FIRMAN1
AC Grounding System
7-11 inches water column (0.25-0.40 psi)(13-20mm mercury)(1.7-2.7 kpa)
36
Troubleshooting – Specifications
*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 G300-2023, Safety and Performance of Portable Generators.
Natural gas fuel pressure range
Neutral Bonded To Frame
Natural gas fuel consumption
No LoadHalf LoadFull Load
33
72ft/hr(2m/hr)
33
126.7ft/hr(3.5m/hr)
126,700 BTU/h (37,126 W)
33
86ft/hr(2.4m/hr)
86,000 BTU/h (25,204 W)
LPG fuel consumption
3
62.7ft /hr(6.5L/hr)
156,163 BTU/h (45,757 W)
3
31ft/hr(3.2L/hr)
77,500 BTU/h (22,713 W)
3
15.6ft/hr(1.6L/hr)
39,000 BTU/h (11,429 W)
72,000 BTU/h (21,101 W)
PARTS DIAGRAM AND PART LIST
T09376 PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
37
459cc TRI-FUEL ENGINE PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
38
T09376 Portable Generator
English Customer Service: 1-844-FIRMAN1
39
Parts Diagrams - Parts Lists - Wiring Diagram
NO.
P/N
QTY.
Description
NO.
P/N
QTY.
Description
1
2
3
4
5
5.1
5.2
5.3
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
26.1
26.2
26.3
26.4
26.5
26.6
27
28
29
30
31
32
33
34
34.1
34.2
34.3
34.4
35
36
36.1
36.2
36.3
36.4
37
38
39
40
41
42
43
44
45
46
47
48
49
50
50.1
50.2
50.3
50.4
50.5
50.6
50.7
50.8
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
393467009
357713501
336718308
357713573
393453008
393753001
393753002
380713537
357713506
357713507
336713525
357713563
380713504
336713519
336713523
336713520
357713599
336713519
392715509
336718309
375715029
330713610
393713048
375715030
336713514
336718301
336713516
336718326
393417021
393417022
393717008
393713025
393713026
380713549
393417023
393723013
336718315
393417024
393427009
357713536
336717017
336713559
393417025
393417026
336713557
336713561
336718315
375715016
393417027
336713548
393417028
336713542
357713600
392713002
392723003
336417031
399715513
310715064
336713807
330713508
336427010
357713525
317713553
393717006
357713531
336713691
393417029
357713532
357713533
336718318
393417030
393717007
375725506
393417031
340715048
375715016
393728308
357713569
329713551
336713645
393457010
357713570
392715520
336713611
357713571
336713693
336713692
336718308
393427010
380713547
399725527
393417032
399715591
332753001
393727005
355418316
393717002
336713822
380713518
336713601
Engine Subassy.
Rubber Cap B
Flange Bolt M6 x 8
Wind Shield
Rotor And Stator Set
Rotor
Stator
Stator Cover
End Cover
Carbon Brush Assy.
Carbon Brush Holder
Bolt & Washer Assy. M5 x 20
AVR
Flange Bolt M5 x 16
Terminal Block
Ground Wire
Flange Bolt M5 x 16
End Cover Cap
Flange Bolt M5 x 12
Flange Bolt M6 x 200
Nut M5
Side Cover Bolt M5 x 236
Flange Bolt M10 x 285
Ground Wire
Flange Bolt M6 x 12
Nut M6
Muffler Assy.
Muffler
Flange Bolt M6 x 12
Arrester, Spark
Holder, Spark Arrester
Muffler Cover
Gasket, Muffler
Nut M8
Wheel Axle
Wheel
Cotter Pin
Flat Washer Ø10
Flange Bolt M8 x 16
Support Leg Assy.
Support Leg
Rubber, Support
Flange Bolt M6 x 25
Nut M8
Nut M6
Fuel Tank Assy.
Fuel Filter, Wire Mesh
Flange Bolt M6 x 25
Grommet, Fuel Tank
Bushing
Fuel Cap
Fuel Gauge Assy.
Screw M5 x 16
Fuel Gauge Display
Bolt M6 x 20
Tank Fitting With Filter
Clip Ø10.5 x 8
Hose, Fuel
Formed Vapor Hose
Clamp Ø8 x 6
Throttle Valve
Nut M10
Hose Holder
Frame Assy.
Isolator II
Isolator I
Nut M8
Isolator II
Bolt M8 x 80
Handle Plastic Washer
Nut M8
Nut M6
Flange Nut M5
Flange Bolt M6 x 15
Bracket, Battery
Battery, 12V, 14Ah
Battery, Positive Boot
Battery, Cable, Positive
Boot, Red Battery
Battery, Negative Boot
Flange Bolt M6 x 8
Control Box
Metal Clamp Ø25
LPG Hose
Main Regulator Assy.
Tapping Screw ST2.9 x 17
CO Module
Fuel Switch Cover
Fuel Valve
Screw M5 x 36
Micro Switch 2
Receptacle, 14-50R
Receptacle, L14-30R
1
2
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
1
1
1
9
1
1
3
1
1
2
2
2
2
4
2
1
1
2
2
2
2
1
1
1
4
4
1
1
2
1
4
1
4
1
1
1
1
4
1
1
2
2
4
1
2
2
1
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
2
1
1
1
Bolt & Washer Assemby M5 x 16
External Teeth Lock Washer Ø6
Screw & Washer Assy. M5 x 14
Screw & Washer Assy. M5 x 10
Screw & Washer Assy. M5 x 10
Battery Cable, Negative, Female
Battery Cable, Negative, Male
English Customer Service: 1-844-FIRMAN1
40
Parts Diagrams - Parts Lists - Wiring Diagram
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
336755002
336713828
380713526
336713569
393417033
363753004
399755662
340725503
393727006
317713516
399427010
360725501
336725506
336718383
393727002
360725502
357713542
380713515
336713512
336713513
336713516
329713551
393725501
392758302
336755005
336713585
336457020
317713580
336718368
357713547
393455001
330723586
336718324
336713818
393457011
317713521
357713545
357713546
357713548
393417034
393417035
393417036
336713834
393417037
336427011
CO Indicator Light
Indicator Light
Circuit Breaker, 30A
Control Panel Plate
Multimeter
Switch, Electric Start
Electric Start Switch Cover
Fuel Switch
Receptacle Cover, 14-50R
Receptacle Cover, L5-30R
Cover, LPG Inlet
Flange Bolt M6 x 22
Nut M6
Lock Washer Ø6
Flat Washer Ø6
Flange Bolt M6 x 15
Circuit Breaker, Cover, 30A
Push Button Breaker Cover
Nut, Push Button Breaker
Receptacle, L5-30R
Screw/Washer Assy. M5 x 8
Nut M4
Charging Module
Control Module
Screw ST4.8 x 17
Grommet
Sleeve
Grommet
Wheel Assembly
Control Panel Assy.
Fuel Tank Assy.
LPG Regulator
Support Leg Sub Assy.
Hose, Fuel 2
1
1
1
4
1
1
1
1
1
1
1
1
1
8
1
1
1
2
2
2
1
3
1
1
1
1
1
1
4
1
1
4
8
1
1
5
1
1
1
1
1
1
1
1
1
NO.
P/N
QTY.
Description
NO.
P/N
Description
Screw & Washer Assy. M4 x 8
Screw & Washer Assy. M4 x 14
Receptacle Cover, TT-30R/14-50R
Screw & Washer Assy. M4 x 14
Receptacle Cover, 5-20R GFCI
External Teeth Lock Washer Ø6
Cover, Double-Pole Circuit Breaker
Circuit Breaker, Push Button, 20A
Screw & Washer Assy. M3 x 6
Receptacle, 5-20R Duplex GFCI
Circuit Breaker, Double-Pole, 38.8A
QTY.
FIRMAN 459cc Tri-fuel Engine
1
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.1
2.11
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
NO.
Part Number
Description
Qty.
English Customer Service: 1-844-FIRMAN1
336718308
380467017
336728300
336728301
357723579
357723580
357723582
393723006
336723589
336723590
336723592
336723591
336723593
357723571
357723572
392715500
336718302
392718301
380418300
380418301
357723569
357723516
357723515
393713011
357723506
357723505
375718321
393723009
357723507
392715501
336723501
393723008
336723526
355728351
393713010
357723501
357723502
393723007
336718301
393713009
392715502
392715503
392715504
392715505
392715506
357723517
393713039
380723502
393713012
393713013
393713014
393713038
393723010
357723544
392715507
392718300
357723530
392467012
357723525
357723526
357723527
393413005
NO.
Part Number
Description
Qty.
393713015
360713037
336723537
357723538
355718411
380723507
380723508
357723537
357723536
357723535
357723533
357723534
357723531
392467010
380467018
357713584
357723567
336723564
392718302
357723565
336723567
393728303
357723562
357723563
393413009
329713551
393713017
336713517
357723529
330723001
357723548
357723549
375467023
357723551
393467010
357723554
380467019
393728304
393718310
393718311
393728308
393718312
380467025
357723546
336718314
392418300
392418301
380467023
392415501
375718302
392467016
399467012
336723529
336723528
380467024
3
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
5
1
1
1
2
10
2
1
1
2
2
1
1
1
2
1
2
1
1
2
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
2
4
1
1
1
1
1
2
2
2
1
2
1
1
2
2
2
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
5
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
2
2
1
Flange Bolt M6×8
Starting Cover Assy
Handle Core
Recoil Starter Knob
Case Comp.,Recoil Starter
Starter Return Spring
Recoil Starter Pulley
Recoil Starter Rope
Ratchet Spring
Ratchet Starter
Ratchet Guide Spring
Ratchet Guide
Ratchet Guide Bolt
Special Nut
Starter Pulley Comp
Fan Corer Comp
Flange Bolt M6×12
Cooling Fan
Flywheel Comp
Ignition
Bolt
Flange Boltm8*40
Oil Seal
Crankcase Cover
Radial Ball Bearing 6207/C3
Radial Ball Bearing6202/P6
Wire Clip
Oil Filler Cap Assembly
Balance Gear
Crankshaft Comp
Dowel Pin 9*14
Case Cover Packing
Flange Bolt M6×15
Oil Level Switch Assy
Crankcase Assy
Drain Plug Bolt
Drain Plug Washer
Packing
Flange Bolt M6×12
Wire Clip
Washer
Governor Shaft
Governor Weight Holder
Governor Shaft Clip
Governor Slider
Connecting Rod Assembly
Piston Pin
Piston Pin Clip
Oil Seal Set Comp
Second Ring Set
First Ring Set
Piston
Cylinder Head Casket
Dowel Pin
Head Comp
Bolt
Bolt
Wind Guide, Top
Head Over Packing
Head Cover Comp
Head Cover Bolt Comp
Camshaft Comp
Valve Lifter
Push Rod
Pivot Bolt
Push Rod Guide Plate
Rocker
Intake,Valve
Exhaust,Valve
Valve Spring Washer
Valve Oil Seal
Valve Spring
In , Valve Spring Retainer
E× , Valve Spring Retainer
Valve Rotator
Wind Guide, Lower
Start Motor
Flange Boltm8×35
Cover Arm Shaft
Washer8.2×17×0.8
Oil Seal
Pin Clip
Governor Arm Bolt
Governor Arm
Throttle Return Spring
Governor Rod
Control Set Assembly
Bolt M6×15
Governor Spring
Nut M6
Hose
Spark Plug
Bolt
Carburetor Insulator
Carburetor Packing
Carburetor Assy
Air Cleaner Packing
Air Cleaner Case Assy
Air Cleaner Base
Seal
Clapboard
Nut M5
Filter
Air Cleaner Cover
Air Cleaner Holder
Nut M6
Crankcase Assy
Ring Set Assy
Cylinder Head Assy
Gasket Assy
Flange Bolt M8×12
Crankcase Air Guide Assy.
Washer
Nut Valve Adjusting
Nut, Valve Lock
Governor Shaft Assy.
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
88.1
88.2
88.3
88.4
88.5
88.6
89
90
91
92
93
94
95
96
97
98
99
100
41
Parts Diagrams - Parts Lists - Wiring Diagram
Carburetor Insulator Packing
English Customer Service: 1-844-FIRMAN1
42
Parts Diagrams - Parts Lists - Wiring Diagram
Wiring Diagram
English Customer Service: 1-844-FIRMAN1
43
Service – Warranty
Do Not Return the Unit to the Place of Purchase
Contact the FIRMAN customer service and FIRMAN will troubleshoot any issue via phone or e-mail.
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 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.
For service information contact FRIMAN customer service 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.
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.
FIRMAN 3 Years Limited 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.
44
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
45
Service – Warranty
English Customer Service: 1-844-FIRMAN1
46
Service – Warranty
P/N:393747002 Rev:01
All rights reserved. Any reprinting or unauthorized use
without the written permission is expressly prohibited.
FIRMAN POWER EQUIPMENT INC.
8644 W. LUDLOW DR.
PEORIA, AZ 85381
1-844-347-6261
WWW.FIRMANPOWEREQUIPMENT.COM
