Firman P03618 User manual

P/N:336745467 Rev:00
OPERATOR'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:
Record product information to reference when ordering parts or
obtaining warranty coverage.
Serial Number:
PORTABLE GENERATOR
DO NOT RETURN TO
STORE!
CALL US FIRST!
CUSTOMER HOTLINE
1-844-347-6261
FOR QUESTIONS OR SERVICE
INFORMATION
Purchase Date:
MODEL NUMBER
P03618
Rev Level:00

Table of Contents
Connecting to a Building’s Electrical
English Customer Service: 1-844-FIRMAN1
Trouble Shooting . . . . . . .. . . . . . . . . . . . . . . . .23
Parts / List/ Wiring diagram . . . . . . . . . . 24
Generator Parts Diagram . . . . . . . . . . . . . .24
Engine Parts Diagram . . . . . . . . . . . . . . .26
Parts List . . . . . . . . . . . . . . . . . . . . . . .. . . .27
Service Information . . . . . . . . . . . . . . . . . . 28
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Thank you for purchasing a FIRMAN generator.
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.
Page 01
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.
Important Safety Information
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
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
Fire Hazard
Hot Surface.
Do Not Touch the Surface.
Kickback
Risk of Electric Shock
Explosion Hazard
Rotating Parts Entanglement
Hazard
Operator’s Manual
INTRODUCTION
English Customer Service: 1-844-FIRMAN1

SAFETY PRECAUTIONS
Page 02
POISONOUS GAS HAZARD.
•
•
•
•
•
English Customer Service: 1-844-FIRMAN1
DANGER

Page 03
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
Living Area
Attic
Entry Way
Porch
Mudroom
English Customer Service: 1-844-FIRMAN1

Page 04
WHEN OPERATING EQUIPMENT
•
DO NOT tip engine or equipment at angle
which causes fuel to spill.
DO NOT stop engine by moving choke
control to “Start” position.
•
•
WHEN TRANSPORTING, MOVING
OR REPAIRING EQUIPMENT
Transport/move/repair with fuel tank
EMPTY or with fuel shutoff valve OFF.
•
•DO NOT tip engine or equipment at angle
which causes fuel to spill.
Disconnect spark plug wire.
•
WHEN STORING FUEL OR EQUIPMENT
WITH FUEL IN TANK
•
WARNING
•
•
WARNING
Generator voltage could cause
electrical shock or burn resulting
in death or serious injury.
WARNING
•
•NEVER start or stop engine with electrical
devices plugged in and turned on.
WARNING
Fuel and its vapors are extremely flammable
and explosive which could cause burns, fire,
or explosion resulting in death or serious
injury.
WHEN ADDING OR DRAINING FUEL
Turn generator engine OFF and let it cool at
least 2 minutes before removing fuel cap.
Loosen cap slowly to relieve pressure in tank.
Fill or drain fuel tank outdoors.
•
•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
removed.
•
English Customer Service: 1-844-FIRMAN1
Failure to use the appropriate U. S. Coast
approved generator could result in death or
serious injury.
Guard

Page 05
WARNING
Unintentional sparking
could cause fire or
electric shock resulting
in death or serious
injury.
WHEN ADJUSTING OR MAKING REPAIRS TO
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
NEVER operate generator without protective
housing or covers.
DO NOT wear loose clothing, jewelry or
anything that could be caught in the starter
or other rotating parts.
Tie up long hair and remove jewelry.
•
•
•
•
•
DO NOT exceed the generator’s wattage
amperage capacity.
Start generator and let engine stabilize
before connecting electrical loads.
NOTE:
•
•
•
•
CAUTION
Exceeding generators wattage/amperage capacity
could damage generator and/or electrical devices
connected to it.
Connect electrical loads in OFF position,
then turn ON for operation.
Turn electrical loads OFF and disconnect
from generator before stopping generator.
•
•
•
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 handle generator or electrical
cords while standing in water, while
barefoot, or while hands or feet are wet.
DO NOT allow unqualified persons or
children to operate or service generator.
•
WARNING
Exhaust heat/gases could ignite combustibles,
structures or damage fuel tank causing a fire,
resulting in death or serious injury.
Contact with muffler area could cause burns
resulting in serious injury.
DO NOT touch hot parts and AVOID hot
exhaust gases.
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
defined in Section 4442, maintained in
effective working order. Other states or
federal jurisdictions may have similar laws.
Contact the original equipment manufacturer,
retailer, or dealer to obtain a spark arrester
designed for the exhaust system installed on
this engine.
Replacement parts must be the same and
installed in the same position as the original
parts.
•
•
•
•
DO NOT touch bare wires or receptacles.
•
English Customer Service: 1-844-FIRMAN1

Page 06
•
•
•
•
•
Use generator only for intended uses.
If you have questions about intended use,
ask dealer or contact local service center.
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.
•
•
WARNING
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.
•
•
•
•
•
NOTE:
Improper treatment of generator could damage
it and shorten its life.
UNPACKING THE GENERATOR
•
•
Parts Included
Your gasoline powered generator ships with
the following parts:
1. Engine Oil(Bottle) . . . . . . . . . . . . . . . . . . . . . . . 1
2. Oil Funnel . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 1
3. Wrench for Spark plug . . . . . . . . . . . . . . . . . . . .1
5. Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
6. Quick Reference Guide . . . . . . . . . . . . . . . . . . . 1
4. Double Open wrench (10mm & 12mm). . . . 2
2
1
Quick
Reference
Guide
3
Manual
6
5
English Customer Service: 1-844-FIRMAN1
4

Page 07
REMOVAL OF SHIPPING SUPPORTS
Before you can run your new generator, follow
these simple instructions:
CAUTION
Failure to remove these items can result
in damage to your generator, possible
Personal injury and void your warranty.
Refer to the following instructions and pictures
to remove the attached engine support brackets
(red) under the engine.
3. You may discard these brackets, as they are no longer
required for normal operation of your generator.
Your generator is now ready for use. Refer to
your owner's manual for proper oil fill and
startup instructions.
Engine Support Brackets
(red color)
Remove these 4 nuts &
bolts as indicated.
Supplied wrenches
English Customer Service: 1-844-FIRMAN1

Page 08
CONTROLS AND FEATURES
Generator
1- Fuel Gauge
2- 5.0 Gallon Capacity Fuel Tank
3- Fuel Cap
4- Choke Lever
5- Fuel Valve
6- Air Filter
7- 208cc FIRMAN OHV Engine
8- Recoil Starter
9- Bottle Opener
10 - Oil Filler Cap
11 - Outlet Cover
12 - Control Panel
*We are always working to improve our products. Therefore, the enclosed product may differ
slightly from the image on this page.
NOTE:
English Customer Service: 1-844-FIRMAN1
1
2
①
②
③
④
⑤
⑥
⑦⑧⑩
⑪
®
⑨
⑫

Page 09
Control Panel
1
24-1 Data-Minder(Multi-Meter) – Push the
SELECT button to show the Voltage, Hertz and
running hours. If the low oil indicator is lit,
check the oil level.
3
4
5
7
Ground Terminal – Consult an electrician
for local grounding regulations.
120V, 30A Twist Lock (NEMA L5-30R)
1
23
4
5
6
7
6
120V, 30A RV (NEMA TT-30R)
Total power drawn from all receptacles must not exceed the name plate rating.
NOTE:
8Outlet Cover - Protect the receptacles from
dust and debris.
8
English Customer Service: 1-844-FIRMAN1
A - Digital display
B - AC voltage indicator
C - Frequency indicator
D - Hour indicator
E - Low oil indicator
F - Select button
Engine Switch – Flip the switch to the “ON”(l)
position and pull the recoil starter to start the
generator. Turn to the “OFF”(O) position to
turn off the generator.
Maximum full load 30 Amp current may be
drawn from this 120 Volt receptacle.
120V, 20A Duplex – (NEMA 5-20R) 20 Amp
of current may be drawn from this 120 Volt
receptacle.
Maximum full load 30 Amp current may be
drawn from this 120 Volt receptacle.

Page 10
SPECIFICATIONS
Model
Rated AC Voltage
Phase
Power Factor
Voltage Regulator
Alternator Type
Running Watts
Starting Watts
Engine
Engine Type
Displacement
Low Oil Shutdown
Ignition System
Starting System
Fuel
Capacity Fuel Tank
Lubricating Oil Capacity
Carburetor Type
Air Cleaner
P.T.O. Shaft Rotation
120V
P03618
3650
AVR
Single
1
Single Cylinder, 4-Stroke OHV Air Cooled
208cc
Breakless Ignition Type, Flywheel Magneto
Unleaded Automotive Gasoline
Recoil
5.0 Gallon(19L)
20.3 oz(0.6L)
Counter Clockwise (Facing P.T.O.)
Float
Brushed
Polyurethane Type
Yes
4550
FIRMAN
Rated Fequency 60Hz
Oil Type
See “Add Engine Oil” Section
AN IMPORTANT MESSAGE ABOUT TEMPERATURE:
English Customer Service: 1-844-FIRMAN1
Total Harmonic Distortion(THD) 25%
AC Grounding System Floating Neutral
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.

Add Engine Oil
Page 11
1.Place generator on a flat, level surface.
2.Clean area around oil fill and remove yellow
oil fill cap/dipstick.
3.Wipe dipstick clean.
NOTE:
The engine is equipped with a low oil shut-off and
will stop when the oil level in the crankcase falls
below the threshold level.
NOTE:
We consider the first 5 hours of run time to be
the break-in period for the unit. During the break
in period stay at or below 50% of the running
watt rating and vary the load occasionally to allow
stator windings to heat and cool. Adjusting the
load will also cause engine speed to vary and help
seat piston rings.
(H)
DRAIN PLUG
(L)
5.Replace oil fill cap/dipstick and fully tighten.
6.Oil level should be checked prior to each use
or at least every 8 hours of operation. Keep oil
level maintained.
4.Using oil funnel, slowly pour contents of
provided oil bottle into oil fill opening to the
"H" mark on dipstick. Be careful do not
overfill. Overfilling with oil could cause the
engine to not start or hard starting.
H
L
Low oil shutdown
Degrees Celsiusº(Outside)
Full Synthetic 5W-30
Degrees Fahrenheitº(Outside)
5W-30 10W-40
10W-30
engine.
English Customer Service: 1-844-FIRMAN1
NOTICE

Add Fuel
Page 12
Fuel must meet these requirements:
•Clean, fresh, unleaded gasoline.
Use regular UNLEADED gasoline with the
generator engine with a minimum 87 octane
/ 87 AKI (91 RON).
For high altitude use, see "Operation at High
Altitude".
Do not use gasoline with more than 10%
ethanol such as E85 or ethanol.
•
•
Failure to follow Operator's Manual for fuel
recommendations voids warranty.
Avoid generator damage.
DO NOT use unapproved gasoline such as E85.
DO NOT mix oil in gasoline.
DO NOT modify engine to run on alternate fuels.
•
•
•
WARNING
Fuel and its vapors are extremely flammable
and explosive which could cause burns, fire or
explosion resulting in death, serious injury.
WHEN ADDING FUEL
Fill fuel tank outdoors.
DO NOT overfill tank. Allow space for fuel
expansion. If the tank is overfilled, fuel
can overflow onto a hot engine and cause fire
or explosion. Wipe up any spilled fuel
immediately.
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
filling the fuel tank.
•
•
•
•
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.
3.Install fuel cap and let any spilled fuel
evaporate before starting engine or wipe up
any spilled gasoline.
English Customer Service: 1-844-FIRMAN1
CAUTION
Slowly add unleaded gasoline to fuel tank.
Do not overfill tank.
Do not fill above the red line indicator.
This will allow expansion in hot weather
and prevent overflow.
•
•
•
Red Line Indicator
IMPORTANT: It is important to prevent gum
deposits from forming in fuel system parts such
as the carburetor, fuel hose or tank during storage.
Alcohol-blended fuels (called gasohol, ethanol
or methanol) can attract moisture, which leads to
separation and formation of acids during storage.
Acidic gas can damage the fuel system of an engine
while in storage. To avoid engine problems, the
fuel system should be emptied before storage of
30 days or longer. See the " Long Term Storage"
section. Never use engine or carburetor cleaner
products in the fuel tank as permanent damage
may occur.

Page 13
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Altitude main jet 1
Altitude main jet 2
208cc
335717002
335717003
Altitude
3000-6000Feet
6000-8000Feet
OPEN
Grounding
DO NOT touch bare wires or receptacles.
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 handle generator or electrical cords
while standing in water, while barefoot, or
while hands or feet are wet.
DO NOT allow unqualified persons or children
to operate or service generator.
WARNING
Generator voltage could cause
electrical shock or burn resulting
in death or serious injury.
•
•
•
•
•
Operation at High Altitude
At altitudes over 5,000 feet(1524 meters), a
minimum 85 octane gasoline is acceptable.
Engine power and generator output will be
reduced approximately 3.5% for every 1000
feet (305 m) of elevation above sea level. High
altitude may cause hard starting, increased fuel
consumption and 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.
Installation instructions are also available in the
Technical Bulletin area of the FIRMAN website
www.firmanpowerequipment.com.
NOTICE Operation using an alternative main
jet at elevations lower than the recommended
minimum altitude can damage the engine. For
operation at lower elevations, the standard
main jet supplied must be used. Operating the
engine with the wrong main jet may increase
exhaust emissions, fuel consumption and
reduce performance.
The generator neutral is floating, which means
that the AC stator winding is isolated from the
grounding fastener and the AC receptacle
ground pins. On a floating neutral generator the
AC receptacle ground pins are not functional.
Electrical devices, such as a ground fault circuit
interrupter (GFCI), requiring a functioning AC
receptacle.

OPERATION
Page 14
Generator Location
Make sure you review each warning in order to
prevent fire hazard.
Keep area clear of inflammables or other
hazardous materials.
Select a site that is dry, well ventilated and
protected from the weather.
Keep exhaust pipe clear of foreign objects.
Keep generator away from open flame.
Keep generator on a stable and level surface.
WARNING
Surge Protection
Voltage fluctuation may impair the proper
functioning of sensitive electronic equipment.
POISONOUS GAS HAZARD.
•
•
•
•
Do not block generator air vents with paper or
other material.
CAUTION
Tilting can cause fuel spillage.
English Customer Service: 1-844-FIRMAN1
NOTICE:

Page 15
Starting the Generator
1. Before starting the generator, check for loose
or missing parts and for any damage which
may have occurred during shipment.
2. Check oil level and fuel.
6. Move the choke lever to the “START” position.
5. Flip the engine switch to the “ON”(l) position.
8. Do not over-choke. As soon as engine starts
and warms up, move the choke lever to the
“RUN” position.
9. Allow generator to run at no load for few
minutes upon each initial start-up to permit
engine and generator to stablize.
WARNING
When starting engine, pull cord slowly until
resistance is felt and then pull rapidly to avoid
kickback.
4. Turn the fuel valve to the “ON” (l)position.
7. Pull the starter cord slowly until resistance is
felt and then pull rapidly.
3. Disconnect all electrical loads from the
generator. Never start or stop the generator
with electrical devices plugged in or turned
on.
English Customer Service: 1-844-FIRMAN1
Keep choke lever in “START” position for only 1
pull of the recoil starter. After first pull, move
choke lever to the “RUN” position for up to the
next 3 pulls of the recoil starter. Too much
choke leads to spark plug fouling/engine
flooding due to the lack of incoming air. This
will cause the engine not to start.

Page 16
Connecting Electrical Loads
1.Let engine stabilize and warm up for a few
minutes after starting.
2.Ensure circuit breaker on control panel is in
on position.
Stopping the Engine
This unit has been pretested and adjusted to
handle its full capacity. Before starting the
generator, disconnect all load. Apply load only
after generator is running. Voltage is regulated
via the engine speed adjusted at the factory for
correct output. Readjusting will void warranty.
When applying a load, do not exceed the maximum
wattage rating of the generator when using one or
more receptacles. Also, do not exceed the amperage
rating of any one receptacle.
Do not apply heavy electrical load during break-in
period (the first five hours of operations).
WARNING
Let the generator run at no-load for two
minutes to stabilize internal temperatures
of the engine and generator.
If a cover is used, do not install until unit has cooled.
Fuel and its vapors are extremely flammable and
explosive which could cause burns, fire or
explosion resulting in death, serious injury.
2. Press the engine switch to the “OFF”(O) position.
3. Turn the fuel valve to the “OFF”(O) position.
Do not leave the generator until it has
completely stopped.
English Customer Service: 1-844-FIRMAN1
NOTICE

Page 17
Do Not Overload Generator
DO NOT stop engine by moving choke control
to “START” position.
Important: Always ensure that the Fuel Valve
and the Engine Switch are in the “OFF” position
when the engine is not in use.
If the engine will not be used for a period of two
weeks or longer, please see the Storage section
for proper engine and fuel storage.
Low Oil Shutdown
If the engine oil drops below a preset level, an
oil switch will stop the engine. Check oil level
with dipstick.
If oil level is between LOW and HIGH mark on
dipstick:
1.DO NOT try to restart the engine.
2.Contact an Authorized FIRMAN Service Dealer.
3.DO NOT operate engine until oil level is
corrected.
If oil level is below LOW mark on dipstick:
1.Add oil to bring level to HIGH mark.
2.Restart engine and if the engine stops again
a low oil condition may still exist. DO NOT try
to restart the engine.
3.Contact an Authorized FIRMAN Service Dealer.
4.DO NOT operate engine until oil level is
corrected.
Overloading a generator in excess of its rated
wattage capacity can result in damage to the
generator and to connected electrical devices.
To prolong the life of your generator and
attached devices, follow these steps to add
electrical load:
1. Start the generator with no electrical load
attached.
2. Allow the engine to run for several minutes
to stabilize.
3. Plug in and turn on the first item. It is best to
attach the item with the largest load first.
4. Allow the engine to stabilize.
5. Plug in and turn on the next item.
6. Allow the engine to stabilize.
7. Repeat steps 5-6 for each additional item.
English Customer Service: 1-844-FIRMAN1

Page 18
English Customer Service: 1-844-FIRMAN1
MAINTENANCE AND STORAGE
MAINTENANCE SCHEDULE
General Recommendations
Regular maintenance will improve the performance and extend the life of the generator. See any
authorized dealer for service.
The generator's warranty does not cover items that have been subjected to operator abuse or
negligence. To receive full value from the warranty, the operator must maintain the generator as
instructed in this manual.
Some adjustments will need to be made periodically to properly maintain your generator.
All service and adjustments should be made at least once each season. Follow the requirements
in the Maintenanc Shedule chart above.
Notice Once a year you should clean or replace the spark plug and replace the air filter. New
spark plugs and clean air filter assure proper fuel-air mixture and help your engine run better
and last longer.
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
√
To be performed by knowledgable/experienced owner or by authorized service center.
*
*
*
Fuel Filter Clean fuel filter and fuel tank
strainer. Replace if necessary. √