OPERATOR’S MANUAL
Record product information to reference when ordering parts or
obtaining warranty coverage.
TRI-FUEL PORTABLE GENERATOR
MODEL NUMBER
Rev Level:00
T13071
P/N:399745575 Rev:01
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .1
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Maintenance - Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Parts Diagrams - Parts Lists - Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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
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.
English Customer Service: 1-844-FIRMAN1
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
03
INTRODUCTION
English Customer Service: 1-844-FIRMAN1
1. Only use grounded cords marked for outdoor use rated for your loads.
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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
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.
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
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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
1- 13.3 Gallon(50 L) Capacity
Fuel Tank
2- Fuel Gauge
3- Fuel Cap
4- Lifting Hook
5- Power Cord Holder &
Maintance cover handle
6- Control Panel
7- 12.0"(30.5cm) Flat Free
Wheel
8- Handle
9- 760cc V-TWIN Engine
10-Battery
11- Muffler & Spark Arrester
12- Data decal/ serial number
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
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FEATURES AND CONTROLS
⑦⑧⑨⑩
①
②
③
④
⑤
⑥
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07
FEATURES AND CONTROLS
⑤
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08
FEATURES AND CONTROLS
⑧
⑨
⑥
⑦
⑩
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FEATURES AND CONTROLS
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4. 120/240V, 50A – (NEMA 14-50R)
Maximum full load current may be drawn from this 120/240 Volt, 50 Amp receptacle.
5. 120/240V, 30A Twist Lock – (NEMA L14-30R)
2. Indicator Lamp - When the engine start switch is in the RUN position , the battery is working.
If you do not need to use the generator, Please move the engine switch(18) to OFF position, or the
battery will lose power.
7. Fuel Valve Knob
Control Panel
NOTICETotal power drawn from all receptacles must not exceed the data decal rating.
A maximum of 30 Amps current for 240 Volts or two independent 120 Volt loads at 30 Amps current each.
6. 120V, 30A Twist Lock – NEMA L5-30R
A maximum of 30 Amps current may be drawn from this receptacle.
7. 120V, 20A Duplex GFCI (Ground Fault Circuit Interrupter)- NEMA 5-20R
A maximum of 20 Amps current may be drawn from this duplex receptacle.
1. 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.
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3. GFCI Controller (Ground Fault Circuit Interrupter)- A GFCI is an automatic device that offers
personal protection against lethal electrical shock or electrocution which protects all receptacles.
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3
4
5
1
6
7
8
14
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16
17
18
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3. 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.
8. 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 within the
portable generator data decal rating.
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10
FEATURES AND CONTROLS
The Economy Control switch can be activated in order to minimize fuel consumption and noise while
operating the unit during times of no electrical output, allowing the engine speed to idle during periods of
no electrical usage. The engine speed returns to normal when an electrical load is connected. When the
economy switch is off, the engine runs at normal speed continuously.
13. Economy Control Switch
10. 12V DC Battery Charger Port - Plug the 120 Volt AC charger into this port to charge the generator
battery.
11. 12V DC Outlet – 8.3 Amp of DC current may be drawn from this receptacle.
Use this outlet to charge 12V automotive type batteries ONLY. See 12V DC outlet (Battery Charger) section.
15. 3-1 Data-Minder (Multi-Meter) – Push the SELECT button to show the Voltage, Hertz, running hours .
16. Ground Terminal – Consult an electrician or authority having jurisdiction for local grounding
requirements.
18. Main Fuel Selector Switch/Engine Switch – Use to select and turn on gasoline (GAS) or LPG/NG
fuel source. The GAS valve is closed when the switch is in the OFF or LPG/NG positions. Engine
switch is on when the switch is in GAS or LPG/NG positions.
19. LPG/NG Hose Connector (Inlet: 3/4" Quick Connect Male) – Used to connect LPG/NG hose to
generator.
12. 30A Circuit Breaker – The L14-30R receptacle is protected by AC circuit protector.
14. 50A Circuit Breaker – The 14-50R receptacle is protected by AC circuit protector.
20. LPG/NG Select Switch
17. 56.25A Main Circuit Breaker
9. DC Circuit Breaker - The circuit protector may be reset by pushing the button of the protector.
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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.
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.
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.
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.
20 ft. (6.0 m) min.
To better educate yourself about all carbon monoxide risks,
go to www.takeyourgeneratoroutside.com.
OPERATION
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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.
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OPERATION
5 ft.(1.5m)
min.
5 ft.(1.5m)
min.
20 ft.(6m)min.
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2. Oil and Gasoline
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-30 10W-40
10W-30
1.Place generator on a flat, level surface.
3.Clean area around oil fill and remove oil fill cap/dipstick.
4.Wipe dipstick clean.
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OPERATION
2.Open the maintenance cover.
Maintenance Cover
H
L
Dipstick
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5. 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.
6.Replace oil fill cap/dipstick and fully tighten.
7.Oil level should be checked prior to each use or at least every 8 hours of operation. Keep oil
level maintained.
8. Close maintenance cover.
Low Oil Pressure (Shutdown Alarm)
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% alcohol is acceptable.
E10
E15
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OPERATION
Low oil pressure shutdown has a two (2) second delay on start-up and five (5) second delay once the
engine is running. The low oil pressure switch has normally closed contacts that are held open by
engine oil pressure during normal operation. Should the oil pressure drop below approximately
5 PSl (34.5 kPa) the switch contacts close and the engine shuts down. The unit should not be restarted
until oil level is verified.
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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 Gasoline Only
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 spark plug 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
760cc
399715870
399715871
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.
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.
1. Attach the LPG regulator hose assembly (included) to the LPG hose
connector (inlet) on the control panel of the generator.
2. Connect push back sleeve of socket to inlet, put in and then release.
3. 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.
INLET(Panel)
1.
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NG Shut
Off Valve
Coupling
Connect the locally approved flexible fuel supply line (not included) to the LPG/NG connector (inlet
3/4" connector) on the control panel and the fuel Source. We recommend you use FIRMAN 25ft (7.62m)
Quick Connect Hose Kit (Model 1820) 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.
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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.
OPERATION
BATTERY CABLE CONNECTION
NOTICE Be sure to connect the battery
before attempting to start the generator.
English Customer Service: 1-844-FIRMAN1
1. Before starting the generator, check for loose or missing parts and for any damage which may
have occurred during shipment. Ensure spark plugs, muffler, fuel cap, and air cleaner are all in place.
2. Move portable generator outdoors to safe operating location at least 20
feet from any occupied spaces.
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OPERATION
4. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
4. Turn the fuel valve to the “ON” (l)position.
6. Flip the ECO switch to the “OFF(O)” position.
6. Move choke knob located on panel to “START” position. You do not need to choke a warm engine.
3. Starting the Generator on Gasoline
3. If connected make sure the LPG cylinder knob or the NG source valve are fully closed or
disconnected.
CLOSE
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.
5. 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.
6. Flip the engine switch to the START (ll) position for a few seconds and then release.
English Customer Service: 1-844-FIRMAN1
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OPERATION
7. 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 Pressure (Shutdown Alarm) 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).
4. Fully open the LPG cylinder knob.
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.
English Customer Service: 1-844-FIRMAN1
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OPERATION
6. Turn the LPG/NG selector switch to LPG position.
8. Flip the engine switch to the START (ll) position for a few seconds and then release.
9. 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 Pressure (Shutdown Alarm) 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:
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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OPERATION
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).
4. Fully open the NG source valve.
7. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
6. Turn the LPG/NG selector switch to NG position.
5. Turn the main fuel selector switch to “LPG/NG” position.
NG Shut
Off Valve
Coupling
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OPERATION
8. Flip the engine switch to the START (ll) position for a few seconds and then release.
9. 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 Pressure (Shutdown Alarm) section for more information.
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
All receptacles are 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 main circuit breaker will trip, which should cut power to outlets.
Press the reset button . If the fault LED indicator light does not turn off. Do not connect
electrical loads. Call FIRMAN customer service.
If GFCI trips while in use, disconnect the loads, reset and test the GFCI controller. 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 Power
Indicator Light
TEST BUTTON
Outlet
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.
23
OPERATION
LED Fault
Indicator Light
TEST BUTTON
RESET BUTTON
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.
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.
24
OPERATION
6.
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
25
OPERATION
Economy Control Switch
The Economy Control switch can be activated in order to minimize fuel consumption and noise
while operating the unit during times of reduced electrical output, allowing the engine speed to
idle during periods of non-use. The engine speed returns to normal when an electrical load is
connected. When the economy switch is off, the engine runs at normal speed continuously.
NOTICE:
For periods of high electrical load or momentary fluctuations, the Economy Control Switch should
be turned OFF. For electrical appliances that can't be started below 180V, the Economy Control
Switch should be turned OFF.
English Customer Service: 1-844-FIRMAN1
26
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.
Let the generator run at no-load for one minute to stabilize internal temperatures of the engine
and generator.
2. Turn the main fuel selector switch to OFF (O) position.
3. Fully close the LPG cylinder knob and NG source valve.
CLOSE
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 plugs 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.
√
27
Oil Filter
Replace.
√
√
English Customer Service: 1-844-FIRMAN1
When Transporting Generator
Transport with fuel tank EMPTY or with fuel valve knob 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 wires before performing any service.
Change Engine Oil and Oil filter
Change engine oil and oil filter every 100 hours. (for a new engine, change oil and oil filter 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.
(b) Change the Oil filter. Turn close the drain oil plug and fill the engine with oil until it reaches
the HIGH(H) level on the oil filler dipstick.
NOTICE We recommend using SAE 10W-30 API SL oil for best performance. Other high-quality
detergent oils (API SL or higher) are acceptable. See Oil and Gasoline
28
Maintenance - Storage
(a) Turn on the drain oil plug A and drain oil by the drain hose B. Removing oil filler cap while the
engine is warm.
H
L
Dipstick
A
B
C
mm
mm
Oil Filter: FIRMAN P/N 399715751,
BOSCH 0986AF0062 or FRAM PH4967F.
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 plugs will help your engine start easier and run at peak performance.
(a) Remove the spark plug boots.
(b) Remove spark plugs using provided wrench.
29
( c) Reinstall clean or new air filter element.
Maintenance - Storage
AIR CLEANER
COVER
AIR FILTER
ELEMENT
English Customer Service: 1-844-FIRMAN1
( c) Inspect spark plug for damage and clean with a wire brush before reinstalling. Replace if
damaged.
(d) Adjust the electrode gap to 0.020” to 0.024” (0.5 to 0.6 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: 0.004 – 0.006 in. (0.10 – 0.15 mm)
Exhaust: 0.004 – 0.006 in. (0.10 – 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.
30
Maintenance - Storage
A
B
A- Spark plug
B- Spark plug boot
0.020-0.024 in
(0.5-0.6 mm)
English Customer Service: 1-844-FIRMAN1
Inspect Muffler and Spark Arrester
1. Inspect the muffler for cracks, corrosion, or other damage.
2. Remove the screw 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 in the muffler and attach with the screw.
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.
31
Run the generator at least 30 minutes every month.
Maintenance - Storage
Spark arrester
screen
Screw
English Customer Service: 1-844-FIRMAN1
Battery Replacement
A(M6)
1. Remove the spark plug boot from spark plugs.
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 33AH
LXWXH:7.67X5.12X6.3inch (195X130X160mm)
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 boots onto spark plugs.
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 the trickle charger provided to keep the battery properly charged. If the battery
is not able to start the engine, the battery must be connected to a standard automotive style
battery charger for re-charging before it can be used.
Battery Charging
32
Maintenance - Storage
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 fuel valve knob to on 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 fuel valve knob to OFF position prior to storage.
6-Allow the portable generator to cool before cleaning and storage.
7-Change oil .
8-Remove spark plug boots and spark plugs. Pour about one teaspoon of engine oil through the
spark plug holes, cover each spark plug hole with a clean rag then quickly jog the engine three
times with the engine switch to distribute the oil in the cylinders. Reinstall the spark plugs and
attach the spark plug boots.
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.
33
Maintenance - Storage
Troubleshooting – Specifications
English Customer Service: 1-844-FIRMAN1
For all other issues, contact authorized dealer or Firman customer service.
34
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/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.
Engine shuts down and
yellow CO fault light blinking.
1. CO system fault
1. Contact authorized FIRMAN
service facility.
SPECIFICATIONS
English Customer Service: 1-844-FIRMAN1
35
Troubleshooting – Specifications
Model
Rated AC Voltage
Phase
Power Factor
Voltage Regulator
Alternator Type
Running Watts*
Starting Watts
Engine
Engine Type
Displacement
Low Oil Pressure Shutdown
Ignition System
Starting System
Fuel
Capacity Fuel Tank
Lubricating Oil Capacity
Carburetor Type
Air Cleaner
P.T.O. Shaft Rotation
120/240V
T13071
13500(GASOLINE)/11000(LPG)/10000(NG)
AVR
Single
1
760cc
Breakless Ignition Type, Flywheel Magneto
Unleaded Automotive Gasoline/LPG/NG
Counter Clockwise (Facing P.T.O.)
Float
Brushed
Polyurethane Type+ HEPA
Yes
16800(GASOLINE)/13750(LPG)/12500(NG)
FIRMAN
Rated Fequency
60Hz
Oil Type
See “Add Engine Oil” Section
Electric Start
AC Grounding System
7-11 inches water column (0.25-0.40 psi)(13-20mm mercury)(1.7-2.7 kpa)
*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 Load Half Load Full Load
3 3
63ft /hr(1.7m /hr)
3 3
189.5ft /hr(5.2m /hr)
189,500 BTU/h (55,534 W)
3 3
112ft /hr(3.1m /hr)
112,000 BTU/h (32,822 W)
LPG fuel consumption
3
76.2ft /hr(7.9L/hr)
189,787 BTU/h (55,609 W)
3
48.3ft /hr(5L/hr)
120,750 BTU/h (35,388 W)
3
22.4ft /hr(2.3L/hr)
56,000 BTU/h (16,411 W)
63,000 BTU/h (18,463 W)
V-twin, 4-Stroke OHV Air Cooled
13.3 U.S. Gallons (50L)
50.7 oz (1.5 L)
PARTS DIAGRAM AND PART LIST
T13071 PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
36
176
182
183
760cc ENGINE PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
37
T13071 Portable Generator
English Customer Service: 1-844-FIRMAN1
38
Parts Diagrams - Parts Lists - Wiring Diagram
NO.
Description Qty.
1
2
2.1
2.2
2.3
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19.1
19.2
19.3
20
21
22
23
24
25
26
27
28
29
29.1
29.2
29.3
29.4
29.5
30
30.1
30.2
30.3
30.4
30.5
31
32
33
34
NO.
Description Qty.
Part Number
Part Number
399467001
399417001
399417002
399417003
399417004
399715621
399755508
399715512
399755623
399457005
399715625
399715598
317718304
399715657
336718302
357713563
317713539
399755627
336718301
393713008
336718326
399715628
399715629
399715630
399717001
399715631
399715632
399715633
399715634
375718301
399715635
336713528
336718318
399715636
399725637
336718313
399715638
399715639
399715640
399715641
399415505
399725643
399715644
399715587
336713548
336713807
336718318
393713018
336713549
399415501
34.1
34.2
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
53.1
53.2
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
399715513
399715514
336417031
399725530
330713508
399725648
336713540
399427005
399725531
399725652
330713509
399725653
357713541
336713573
336713574
336713561
357713543
336713512
336713513
393713008
399417012
399725671
399715670
399715672
330713505
399715673
336718320
399715501
336718315
399715675
399715676
399715677
399715678
399725679
399725502
399715681
399715683
399715684
399755685
399715588
336755004
399715688
399715689
399725690
399715691
336713559
399725692
355718329
399715694
399715695
1
1
1
1
1
4
1
1
1
1
2
4
2
4
26
1
1
1
2
1
2
1
1
1
1
1
2
1
2
2
1
2
8
2
1
4
1
2
2
1
1
4
4
1
1
1
4
6
1
1
1
1
2
1
5
1
1
1
1
1
1
2
2
3
1
1
2
2
2
1
1
2
1
4
2
1
8
1
12
4
1
2
2
2
1
1
1
2
1
1
2
2
2
2
1
4
2
1
1
2
Engine Subassembly
Alternator Assy
Rotor Comp
Stator Assy
Stator Cover
Flange. Bolt M10×25
Carbon Brush Assembly
AVR-Bracket
Control Module-5.0A
AVR
Flat Washer
Bolt
Flange. Bolt M6×20
Flange. Bolt M5×16
Flange. Bolt M6×12
Diode Module
Ground Wire 190 8awg
Flange. Bolt M6×12
The Flange Nut M6
Muffler Assembly
Muffler
Protector, Muffler
Screw M4×6
Exhaust Gasket
Muffler Gasket
Exhaust Pipe
Flange. Bolt M8×25
Washer Ø8×Ø24×3
Exhaust Pipe Cover
Flange Bolt M6×8
The Flange Nut M8
Flange. Bolt M8×20
Carbon Canister Assy
The Flange Nut M6
Carbon Canister Cover
Carbon Canister Shield
Carbon Canister Bracket
Carbon Canister
Fuel Tank Assy
Grommet, Fuel Tank
Bushing
Fuel Tank
Fuel Filter, Wire Mesh
Fuel Hose Connector
The Flange Nut M8
Bolt M6×20
Fuel Tank Cap Comp.
Fuel Gauge Assy.
Fuel Gauge Display
Fuel Gauge Assy.
Screw M5×16
Hose, Fuel
Clamp Ø10.5×8
Vapor Hose 1
Clamp Ø8×6
Fuel Filter
Fuel Hose I
Vapor Hose 2
Clamp Ø8.7×8
Buffer Washer
Outlet Cover 5-20R GFCI
Outlet Cover-L14-30R
Outlet Cover-14-50R
Flange Bolt M6×25
Nut M6
Spring Washer Ø6
Flat Washers Ø6
Handle Flip Assy
Grommet
Handle Flip
Knob Bolt
Screw M6×12
Flip Cover
Flange. Bolt M8×45
Clamp Ø14
The Flange Nut M8
Axle Pin, Handle
Hook Bracket
Flange. Bolt M14×50
Nylon Washers Ø14
Sleeve
Muffler Cover
Battery Pressing Plate
Bolt, Bend Hook M6×165
Battery 33AH
Frame Assy
Support Leg
Cotter Pin Ø3.2×40
Washer Ø16
Wheel 12"
Axle Pin
Flange Bolt M8×16
Rubber, Support
Tubing Retaining Plate
Front Plate. Frame
Isolator Assy I
Bolt &washer M5×20
External Teeth Lock Washer Ø6
External Teeth Lock Washer Ø6
Hexagon Self-locking Nut M14
English Customer Service: 1-844-FIRMAN1
39
Parts Diagrams - Parts Lists - Wiring Diagram
NO. Description Qty.
NO.
Description Qty.
357713531
399715517
399715698
399725699
399715700
399715701
357713519
336718318
399457006
399725704
399755705
399755707
399725706
399715586
393728308
399725532
399457007
399725503
336755004
393725501
336755005
399417007
399715518
399417005
399715520
399725507
399715589
399725508
399715682
330713502
399715527
399755514
399417011
399725533
392758302
336713674
357713586
399725666
399727001
317713516
317713565
399417006
330713618
399755501
399755668
380713526
336713569
380713562
399457004
330723590
355728358
336713822
Part Number
Part Number
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
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
136
137
138
139
140
141
142
143
144
144.1
145
146
147
148
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
336713821
392715516
336713827
399715082
355418316
399457009
399715591
336713832
357713588
336718324
330713594
336713569
330713614
399715657
399755516
399725661
399725535
399755519
399725654
330713591
399725655
399725536
399725511
399457010
375718320
336713586
380713518
336713601
317713577
399715592
399715593
399715594
399715595
336713561
380713547
399725537
399715596
392725506
399715597
399725538
336713691
399427002
336723514
393713040
355718399
399417008
399417009
399417010
399457011
320755504
399427006
399427007
8
1
2
2
1
1
2
2
1
2
1
1
1
2
2
1
1
1
1
1
5
1
1
1
4
1
1
1
2
2
2
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
4
4
1
8
1
2
1
2
1
1
1
1
4
2
2
16
2
10
1
3
1
1
1
1
1
6
1
1
2
1
4
2
1
1
1
1
1
1
1
2
2
1
1
1
2
1
1
1
2
2
2
1
1
1
1
1
1
1
The Flange Nut M10
Base Assy
Supports
Isolator Assy. II
Beam, Frame
Handle Assembly
Cover, Handle
The Flange Nut M8
Ground Wire, 8Awg
Sheath Black
Red Wire, 8Awg
Black Wire , 8Awg
Sheath Red
Flange Bolt M5×10
The Flange Nut M5
Fuel Hose II
Charge Wires
Heat Proof Mat
Engine Switch Cover
Breaker Cover
Breaker Cover
Generator Front Cover
Bolt Assy M10×295
Generator End Cover
Bolt Assy M8×208
Binding Post
Generator End Cover Cap
Rubber Sleeve
Wing Nut M6
Screw M5×20
Screw M4×16
Wires
Control Panel Assy
Fuel Selector Switch
Cover
Multi Meter
Breaker Cover
DC Outlet 8.3A/12VDC
Control Panel
Battery Charging Port
Idle Switch
Circuit Breaker Amp 30a
Screw&washer Assy M4×8
Screw&washer Assy M5×8
Circuit Breaker Amp 56.2A
Screw M3×6
Base, Regulator
Micro Switch
Micro Switch 1
Screw ST2.9×28
Switch
Indicator Light
Fuel Valve Assy.
Indicator Light
Tapping Screw ST2.9×16
Receptacle L5-30T
Receptacle GFCI
The Flange Nut M4
Circuit Breaker Amp 20A
Screw&washer Assy M4×8
Circuit Breaker Amp 10A
Flange. Bolt M5×16
VF Module
Corrugated Pipe Ø12
Control Box
Co Module
Corrugated Pipe Ø23
Cable Connector I
Heat Proof Mat
Rubber Sleeve
Control Module
Circuit Breaker Amp30A
Receptacle 14-50R
Receptacle L14-30R
Clamp
Bolt M6
Bracket, Regulator
Main Regulator Assy
Heat Shield, Regulator
Flange. Bolt M6×25
Metal Clamp
LPG-NG Selector Switch
Clamp Ø22
Selector Switch Cover
Screw M5×10
LPG Inlet Cover
Hose Holder
Heat Insulator
Flange. Bolt M8×32
Clamp Ø9.4×8
Screw M5×35
Muffler Sub.
Fuel Tank Sub.
LPG Regulator
12V DC Battery Charger
Outlet Cover-DC Cigarette Lighter
Outlet Cover-battery Charge
Screw&washer Assy M4×14
Main Circuit Breaker Amp 50A
Screw&washer Assy M4×8
Screw&washer Assy M5×8
12V DC Charge Cable
Heat proof mat
Heat proof mat
Screw&washer Assy M4×20
Screw&washer Assy M5×38
English Customer Service: 1-844-FIRMAN1
40
Parts Diagrams - Parts Lists - Wiring Diagram
FIRMAN 760cc Engine
NO.
Description Qty.
NO.
Description Qty.
1
1.1
1.2
1.3
1.4
1.5
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15.1
15.2
15.3
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
34.1
34.2
34.3
34.4
34.5
35
36
37
38
39
40
40.1
40.2
40.3
40.4
41
42
43
44
45
46
47
48
49
50
51
51.1
51.2
52
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
399425500
399725523
399725524
357713550
399715712
399725525
399715714
336718301
399715576
336713517
399715718
399715719
399715720
399467002
330713508
399715578
399467003
399715526
399715726
399715727
399715728
399715729
399715730
399715731
399467004
399467005
399467006
399715735
336718321
399715737
399715738
399715747
399715748
399715749
399715750
399715751
399715752
399715753
399715754
399715755
399715756
399415757
399715758
399715759
399715760
399715761
399715762
399715763
399715764
399715765
Part Number
399715766
336723610
399415768
399715769
399715770
399715771
399715772
336718397
399467007
399715777
399725509
399715779
399715782
399715790
399715791
399715792
399715793
399715794
317723575
317723574
399715797
399715799
399715800
399715801
399715802
399715600
399715804
399715805
399715806
399715807
399715808
399715809
399715810
399715510
399715508
399715813
399467008
399467009
399715816
399467010
399467011
399715819
399715820
399715579
357723501
357723502
399715824
399715825
399715826
399715827
Part Number
Air filter
Air filter cover nut
Air filter cover
Butterfly nut M6
Filter assembly
Air filter seat assembly
Flange bolt M6 × 22
Flange bolt M6 × 12
air filter bracket
Hexagon flange nut M6
Intuitive manifold
Oil gasket
Template
Carburetor
Clamp Ø10.5 × 8
Screw M6 × 113
Oil connecting seat
Fuel line
Ring, Piston pin
Link assembly
Linkage
Linkage cover
Link bolt
Piston pin
First piston ring
Second piston ring
Oil ring
Piston
Bolt M8 × 50
Dipstick
Crankcase cover
Oil seal 41 × 56 × 8
Oil seal
Oil filter base
Oil filter base bolt
Oil filter
Sealing gasket
Oil filter assembly
Cam shaft assembly
Oil pump seal
Flange bolt M6 × 20
Oil pump
Oil pump gear shaft
Oil pump pressure plate
Oil pump rotor
Rolling pin 4 × 15.8
Oil pump rotor
Pressure spring
Steel ball 15/32 (Ø11.906
Position pin Ø10 × 12
Crankcase Grommet
Pin Ø8 × 10
Crankshaft Assembly
Crankshaft Timing Gear
Crankshaft
Bowl Type Expansion Plug
GB/T 1099 5 × 16
SCREW M5×14
Vent Cover
Wind Scooper Assembly
Shaped Bolts
Ventilator
Exhaust Valve
Valve Seal
Valve Spring
Guide Valve Spring
Rocker Arm Assembly
Adjust Stud
Nut
Oil Plug
Lifting Lug
Cylinder Cover (left)
Cylinder Cover Gasket
Rocker Shaft
Spark Plug
Push Rod
Intake Valve
Bolt M10 × 75
Bolt M10 × 55
Pillar
Start Motor Combination
Flange Bolt M8 × 105
Ignition Coil
Flange Bolt M6 × 33
Flange Bolt M6 × 15
Vent Chamber Cover
Vent Chamber Cover Pad
Cross Screw M3 × 8
Stopper Plate
Check Valve Slice
Shaped Bolt
Left Guide
Oil Drain Bolt M12×1.25×15
Oil Seal 35 × 48 × 8
Oil Pressure Alarm
Hexagonal Plug
Crankcase assembly
1
1
1
1
1
1
9
12
1
9
1
2
1
1
2
4
1
1
4
2
2
2
4
2
2
2
2
2
10
1
1
1
1
1
1
1
1
1
1
1
5
1
1
1
1
1
1
1
1
4
1
2
1
1
1
1
1
6
1
1
1
2
1
2
4
4
4
4
4
4
1
2
1
2
4
2
4
2
2
8
4
1
2
1
8
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
Pipe, Ventilation Chamber
Cylinder Cover Assembly(left)
Oil Drain Bolt Washer 12×20×2
NO.
Description Qty.
83
84
85
86
87
88
89
90
91
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
129
399715509
399715829
399755504
399715831
399715832
399715833
399715834
399725510
399715836
399715838
399715839
399715840
399715841
399715837
399715842
399715843
399715844
399715525
399715846
336723604
357723544
330723555
399715850
399715851
399715580
399715581
393713040
399715855
399715856
399715857
399715858
399467013
399715582
399425709
399715501
399725504
367725500
399755513
380713547
399725527
399715585
399715583
399725529
399715584
336723609
Part Number
Ignition Coil (right)
Leading Broad Assembly
Control Module
Flywheel Assembly
Cooling Fan
Fan Block
Flange Nut M20 × 1.5
Fan Cover Assembly
Cover
Gasoline Pump
Screen
Screw
Oil Cooler
Oil Pipe
Screw
Clamp Ø17.8
Quick Oil Drain Pipe
Oil Drain Bolt (1006)
Pin Ø12 × 20
Bolts M6 × 32
Inlet Gasket
Cylinder Cover
Cylinder Cover (right)
Wind Scooper, Right
Clamp Ø9.4 × 8
Negative Pressure Tube
Cylinder Cover (right)
Bolt M8 × 35
Valve Lock Clamp
Piston Ring Set
Cylinder Head Comp
Gasket Set
Tube Clip
Rubber Sleeve
Temperature Sensor
Metal Clamp Ø25
Fuel Hose
Fuel Hose
Carburetor Insulator
Hose Bracket
Bolt M6×29
1
1
1
1
1
1
1
1
1
1
1
4
1
2
1
2
4
4
1
1
4
4
2
2
1
1
1
1
1
4
8
2
2
1
1
1
1
1
2
1
1
1
1
1
2
English Customer Service: 1-844-FIRMAN1
41
Parts Diagrams - Parts Lists - Wiring Diagram
NO.
Description Qty.
Part Number
Oil cooler supporting plate
Self-tapping screw ST5.5×13
Rubber Sleeve,Air Guide Board
Gasket, Carburetor Insulator
English Customer Service: 1-844-FIRMAN1
42
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.
Warranty Qualifications
43
For service information contact FRIMAN customer service at 1-844-347-6261or 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
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
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 2024-2025 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
45
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 plugs
- Ignition coils
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.
46
Service – Warranty
P/N:399745575 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.
WWW.FIRMANPOWEREQUIPMENT.COM
PEORIA, AZ 85381
1-844-347-6261
