Firman H08053 User manual

Record product information to reference when ordering parts or
obtaining warranty coverage.
OWNER’S MANUAL
Read all safety precautions and instructions carefully
before operating equipment.
Ensure engine is stopped and level before performing
any maintenance or service.
IMPORTANT:
DUAL FUEL GENERATOR
MODEL
NUMBER
Rev Level:00
P/N:380745483 Rev:04
Serial Number:
DO NOT RETURN TO
STORE!
CALL US FIRST!
CUSTOMER HOTLINE
1-844-347-6261
FOR QUESTIONS OR SERVICE
INFORMATION
Purchase Date:

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Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Safety Precautions . . . . . . . . . . . . . . . . . . . . .2
Unpacking the Generator. . . . . . . . . . . . . . . .6
Parts Included. . . . . . . . . . . . . . . . . . . . . . . .7
Assembly . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 8
Install the Wheel Kit . . . . . . . . . . . . . . . . . . 8
Install the Support Leg. . . . . . . . . . . . . . . . 8
Battery Cable Connection. . . . . . . . . . . . . . 9
Controls and Features. . . . . . . . . . . . . . . . . 10
Generator. . . . . . . . . . . . .. . . . . . . . . . . . . .10
Control Panel. . . . . . . . . . . . . . . . . . . . . . . 11
Specifications. . . . . . . . . . . . . . . . . . . . . . . . 13
Add Engine Oil . . . . . . . . . . . . . . . . . . . . . .14
Low Oil Shutdown . . . . . . . . . . . . . . . . . . .14
Add Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Operation at High Altitude . . . . . . . . . . .17
Grounding. . . . .. . . . . . . . . . . . . . . .. . . . . .18
Connecting to a Building’s Electrical
System.. . . . . . . . . . . . . . . . . . . . . . .. . . . . .18
Operation . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 19
Generator Location . . . . . . . . . . . . . . . . . . 19
Surge Protection . . . . . . . . . . . . .. . . . . . . .19
Starting the Generator (Recoil Start-
Gasoline). . 20 Starting the Generator (Recoil
Start-LPG). . 20
Starting the Generator (Electric Start-
Gasoline) .. 22
Starting the Generator (Electric Start-LPG) ..
23 Connecting Electrical Loads . . . . . . . .. . .
24
Stopping the Engine . . . . . . . . . . . . . . . . . 24
Indicator light - Battery Power Saving Mode . .
25
Low Oil Shutdown . . . . . . . . . . . . . . . . . . 25
Do Not Overload Generator . . . . . . . . . . . 25
Maintenance And Storage. . . . . . . . . . . . . . 27
Maintenance Schedule . . . . . . . . . . . . . 27
Engine Maintenance .. . . . . . . . . . . .. . . . 28
Change Engine Oil . . .. . . . . . . . . . . . . . 28
Air Filter Maintenance. . . . . . . . . . . . . .28
Spark Plug Maintenance. . . . . . . . . . . . 29
Cleaning Fuel Strainer . . . . . . . . . . . . 29
Inspect Muffler and Spark Arrester . . . 29
Generator Maintenance . . . . . . . . . . . . . . 30
Battery Replacement. . . . . . . . . . . . . . . 30
Service and Storage . . . . . . . . . . . . . . . .. 31
Trouble Shooting . . . . . . . . . . . . . . . . . . . . .33
Parts Diagram and Parts List . . . . . . . . . . 34
Generator Parts Diagram . . . . . . . . . . . . 34
Engine Parts Diagram . . . . . . . . . .. . . . . 35
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 36
Service Information . . . . . . . . . . . . . .. . . . . 38
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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INTRODUCTION
Thank you for purchasing a FIRMAN generator.
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 equipment. Save these original instructions for future
reference.
This manual covers operation and maintenance of the FIRMAN generators. 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 other wise improve the generator and this
documentation at any time without prior change. Important Safety Information
Toxic Fumes
Fire Hazard
Hot Surface.
Do Not Touch the Surface.

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The manufacturer cannot possibly anticipate every
possible circumstance that might involve a hazard.
The warnings in this manual and the tags and decals
affixed to the unit are therefore not all-inclusive. If
you use a procedure, work method or operating
technique that the manufacturer does not specifically recommend you must satisfy yourself that it is safe
for you and others. You must also make sure that the procedure work method or operating technique
that you choose does not render the generator unsafe.
SAFETY INFORMATION
DANGER
WARNING
CAUTION
DANGER indicates a
potentially hazardous situation
which, if not
avoided. WILL result in death
or serious injury.
WARNING indicates a
potentially hazardous situation
which, if not
avoided, could result in death
or serious injury.
CAUTION indicates a
potentially hazardous
situation which, if not
avoided, may result in minor
or moderate personal injury,
or property damage.
Kickback
Page
01
Risk of Electric Shock
Explosion Hazard
Rotating Parts Entanglement
Hazard
Operator’s Manual

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Page 02
CORRECT USAGE
Example location to reduce risk of carbon monoxide poisoning
•ONLY use outside and downwind, far away from windows, doors and vents.
•Direct exhaust away from occupied spaces.
INCORRECT USAGE
Do not operate in any of the following locations:
Near any door, window or vent
Garage
Basement
Crawl Space

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WHEN TRANSPORTING, MOVING OR
REPAIRING EQUIPMENT
which causes fuel or oil to spill.
•Make certain that a LPG cylinder is not attached
to generator and is securely stowed away.
•Disconnect spark plug wire.
Gasoline, gasoline vapors and liquid petroleum WHEN STORING FUEL OR EQUIPMENT
gas(LPG) are extremely flammable and explosive WITH FUEL IN TANK
which could cause burns, fire, or explosion resulting
• in death or serious injury and/or property
damage.
WHEN ADDING OR DRAINING GASOLINE

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•Turn generator engine OFF and let it cool at •
Do not store gasoline or LPG cylinder near
least 2 minutes before removing fuel cap. furnaces, water heaters, or any other appliances Loosen cap
slowly to relieve pressure in tank.
••Fill or drain fuel tank outdoors. that produce heat or have automatic ignitions.
DO NOT overfill tank. Allow space for fuel expansion.
•If fuel spills, wait until it evaporates before
starting engine.
•Keep fuel away from sparks, open flames, •
pilot lights, heat, and other ignition sources.
•Check fuel lines, tank, cap, and fittings
frequently for cracks or leaks. Replace if
necessary.
•DO NOT light a cigarette or smoke.
WHEN STARTING EQUIPMENT
•Ensure spark plug, muffler, fuel cap, and air cleaner are in place.
•DO NOT crank engine with spark plug
WARNING

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removed. •Use approved transfer equipment, suitable
for the intended use, to prevent backfeed by
isolating generator from electric utility workers.
Page 04
•When using generator for backup power,
notify utility company.Unintentional sparking
•Use a ground fault circuit interrupter (GFCI) could cause fire or in
any damp or highly conductive area, electric shock resulting such as metal decking or steel work.in
death or serious
••DO NOT touch bare wires or receptacles.injury.
DO NOT use generator with electrical cords WHEN ADJUSTING OR MAKING REPAIRS TO
WARNING

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children to operate or service generator.
•NEVER operate generator without protective housing or covers.
•DO NOT wear loose clothing, jewelry or
Exhaust heat/gases could ignite combustibles, anything that could be caught in the starter
structures or damage fuel tank causing a fire, or other rotating parts.
•Tie up long hair and remove jewelry.
resulting in death or serious injury and/or property damage.
Contact with muffler area could cause burns resulting in serious injury.
•DO NOT touch hot parts and AVOID hot exhaust gases.
which are worn, frayed, bare or otherwise
damaged.
•DO NOT operate generator in the rain or wet
weather.
•DO NOT handle generator or electrical cords
while standing in water, while barefoot, or while
hands or feet are wet.
•DO NOT allow unqualified persons or
YOUR GENERATOR
•Disconnect the spark plug wire from the spark
plug and place the wire where it cannot contact
spark plug.
WHEN TESTING FOR ENGINE SPARK
••Use approved spark plug tester.
DO NOT check for spark with spark plug
removed.
WARNING
WARNING
CAUTION

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••Allow equipment to cool before touching.
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
NOTE:
defined in Section 4442, maintained in
Exceeding generators wattage/amperage capacity
effective working order. Other states or could damage generator and/or electrical devices federal
jurisdictions may have similar laws. connected to it.
•DO NOT exceed the generator’s wattage
Contact the original equipment manufacturer, retailer, or dealer to obtain a spark arrester
amperage capacity.
this engine. • designed for the exhaust system installed on
Start generator and let engine stabilize
•Replacement parts must be the same and • before connecting electrical loads.
Connect electrical loads in OFF position,
installed in the same position as the original then turn ON for operation.
•Turn electrical loads OFF and disconnect parts.
from generator before stopping generator.
Page 05
NOTE:
Improper treatment of generator could damage it
and shorten its life.
••Use generator only for intended uses.
If you have questions about intended use, ask
dealer or contact local service center.

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••Operate generator only on level surfaces.
DO NOT expose generator to excessive moisture,
dust, dirt, or corrosive vapors.
•DO NOT insert any objects through cooling slots.
•If connected devices overheat, turn them off and
disconnect them from
generator.
•Shut off generator if:
-Electrical output is lost.
-Equipment sparks, smokes, or emits flames.
-Unit vibrates excessively.
Medical and Life Support Uses.
••In case of emergency, call 911 immediately.
NEVER use this product to
power life support devices
or life support appliances.
•NEVER use this product to power medical
devices or medical appliances.
•Inform your electricity provider immediately if
you or anyone in your household depends on
electrical equipment to live.
•Inform your electrical provider immediately if a
loss of power would cause you or anyone in your
household to experience a medical emergency.
Fuel Safety Gasoline:
GASOLINE AND GASOLINE VAPORS ARE HIGHLY
FLAMMABLE AND EXPLOSIVE.
Fire or explosion can cause severe burns or death.
Unintentional startup can result in entanglement,
traumatic amputation or
laceration.
••Gasoline
can cause a fire or explosion if ignited.
Gasoline is a liquid fuel but it’s vapors can ignite.
•Gasoline is a skin irritant and needs to be
cleaned up immediately if spilled on skin or
clothes.
•Gasoline has a distinctive
odor, this will help detect potential leaks quickly.
•In any gasoline fire, flames should not be
extinguished unless by doing so the fuel supply
valve can be turned OFF. This is because if a fire
is extinguished and a supply of fuel is not turned
OFF, then an explosion hazard could be created.
DANGER
WARNING
WARNING
DANGER

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•Gasoline expands or contracts with ambient
temperatures. Never fill the gasoline tank to full
capacity, as gasoline needs room to expand if
temperatures rise.
Liquid Petroleum Gas (LPG/Propane):
This generator is dual fuel and capable of running
with both gasoline and Liquid Petroleum Gas
(LPG/Propane).
•Liquid Petroleum Gas (LPG) is highly flammable
and explosive. Fire or explosion can cause severe
burns or death.
•Do not use or store LPG cylinder in a building,
garage or enclosed area.
•Do not check for leaks with a lighted match or
flame.
•The LPG cylinder valve should be fully closed
when the generator is not in use or is running
with gasoline.
•If you smell gas: close off the gas supply. Make
sure there is no leak before using the generator.
•Device used for handling LPG must be installed
and used in strict conformance with NFPA 58
(Liquefied Petroleum Gas Code) and NFPA 54
(National Fuel Gas) and all other codes,
regulations and manufacturer recommendations.
•Never use a gas container, LPG connector hose,
LPG cylinder or any other fuel item that is
damaged or appears damaged.
•The LPG cylinder valve should be fully closed
when the generator is not in use or is running
with gasoline.
•The regulator/hose assembly and cylinder valve
must be inspected before each use for leaks or
sign of damages.
•If you smell gas: close off the gas supply. Spray a
soapy water solution to check all connections for
leaks before attempting to use generator.
Contact a qualified technician to inspect and
repair the LPG system if a leak found before using
the generator.
CAUTION
•LPG under pressure is highly flammable and can
cause a fire or explosion if ignited.
•LPG is heavier than air and can accumulate in
confined spaces and low places in the event of a
leak.
Page 06

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•LPG has a distinctive odor to help detect
potential leaks.
•Do not allow children to tamper or play with the
LPG cylinder.
1. Axle pin . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2. 10.0" in. Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Flat Washer. . . . . . . . . . . . . . . .. . . . . . . . . . . . . .2
4. Cotter pin. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .2
5. Engine Oil(Bottle) . . . .. . . . . . . . . . . . . . . . . . . .1
6. Oil Funnel . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 1
7. Wrench for Spark plug . . . . . . . . . . . . . . . . . . .1
8. Double Open wrench (10mm & 12mm). . . . 2
9. Support Leg with Vibration Mounts . . . . . . 1
10. Flange Bolt (M8x16 for Support Leg) . . . . . 2
11. Flange Lock Nut (M8) . . . . . . . . . . . . . . . . . . . 4
12. Flange Bolt M6X25. . . . . . . . . . . . . . . . . . . . . .2
13. Rubber Support. . . . . . . . . . . . . . . . . . . . . . . .2
14. Flange Lock Nut (M6) . . . . . . . . . . . . . . . . . . . 4
15. Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 1
16. LPG Hose With Regulator 5 ft. (1.5 m) . . . 1
17. Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

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18. Quick Reference Guide . . . . . . . . . . . . . . . . . 1

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ASSEMBLY
The generator requires some assembly prior to
usage. If problems arise when assembling the
generator, call 1-844-347-6261. Install the Wheel
Kit
CAUTION
The wheel kit is not intended for over-the-road use.
1. Before adding wheels, tip the generator on its
side.
2. Slide the axle pin Athrough the wheel B.
3. Slide the axle pin Athrough the mount point
on the frame and flat washer D.
4. Secure the wheel and axle pin with the cotter
pin C.
5. Repeat steps 2-4 to attach another wheel.
Install the Support Leg
1. Attach the rubber support (H) to the support
leg (G) with flange bolt (I) (M6X25) and flange
lock nut(J) (M6).
2. Attach the support leg (G) to the generator
frame with flange bolt (E) (M8X16) and flange
lock nut(F) (M8).
3. Tip the generator slowly so that it rests on the
wheels and support leg.
4. Tighten bolt Eand nut Fwith provide wrenches.
Page 08
Battery Cable Connection
NOTE:
The generator comes equiped with the positive(red) and negative(black) cables already attached to
battery terminals.
1. Cut wire tie that is binding the black battery cables A and B.
2. Insert the male connector of cable A into female connector of cable B.

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Page 09

English Customer Service: 1-844-FIRMAN1Page
10
CONTROLS AND
FEATURES
Generator
1- Fuel Gauge
2- 8.0 Gallon Capacity Fuel Tank
3- Fuel Cap
4- Choke Lever(behind air filter box)
5- Air Filter
6- 439cc FIRMAN OHV Engine
7- Recoil Starter
8- 10.0" Flat Free Wheel
9- Oil Filler Cap
10-Battery
11-Outlet Cover
12-Control Panel
13-Handle
14-LPG Hose Connector(Inlet)
15-Hose Holder
16-LPG Hose with Regulator