P/N:302747003 Rev:00
OPERATOR’S MANUAL
SEMI-TRASH WATER PUMP
Record product information to reference when ordering parts or
obtaining warranty coverage.
FPG20T
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance - Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5
Troubleshooting- Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Parts Diagrams - Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3
Service - Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
REGISTER YOUR PRODUCT
Register your product using the QR code provided or at
www.firmanpowerequipment.com .
INTRODUCTION
Thank you for purchasing a FIRMAN pump. You have selected a high-quality, precision engineered
pump designed and tested to give you years of satisfactory service.
This manual contains safety information to make you aware of the hazards and risks associated
with pump products and how to avoid them. It is important that you read and understand these
instructions thoroughly before attempting to start or operate pump. 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 pump and this documentation at any time without prior notice.
INTRODUCTION
01
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.
Water contact with a power source 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
English Customer Service: 1-844-FIRMAN1
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.
03
INTRODUCTION
Do not place pump discharge hose near a power source.
Do not pump chemicals or flammable liquids.
Keep children away from the equipment, especially while it is operating.
Never store fuel or other flammable materials near the Pump engine.
Do not leave the equipment unattended when it is running. Turn off the equipment before
leaving the work area.
Engine can produce high noise levels. Prolonged exposure to noise levels above 85 dBA is
hazardous to hearing. Always wear ear protection when operating or working around the gas
engine while it is operating.
Wear ANSI-approved safety glasses.
Use only accessories that are recommended by FIRMAN for your model. Accessories that may
be suitable for one piece of equipment may become hazardous when used on another piece
of equipment.
Do not operate in explosive atmospheres, such as in the presence of flammable liquids, gases,
or dust. Gasoline-powered engines may ignite the dust or fumes.
Do not overreach. Keep proper footing and balance at all times. This enables better control
of the equipment in unexpected situations.
Parts, especially exhaust system components, get very hot during use. Stay clear of hot parts.
Do not cover the engine or equipment during operation.
Keep the equipment, engine, and surrounding area clean at all times.
Do not smoke, or allow sparks, flames, or other sources of ignition around the equipment,
especially when refueling.
Use the equipment, accessories, etc., in accordance with these instructions and in the manner
intended for the particular type of equipment, taking into account the working conditions and
the work to be performed. Use of the equipment for operations different from those intended
could result in a hazardous situation.
Do not operate the equipment with known leaks in the engine’s fuel system.
When spills of fuel or oil occur, they must be cleaned up immediately. Dispose of fluids and
cleaning materials as per any local, state, or federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.
Use the correct equipment for the application. Do not modify the equipment and do not
use the equipment for a purpose for which it is not intended.
English Customer Service: 1-844-FIRMAN1
*We are always working to improve our products. Therefore, the enclosed product
may differ slightly from the image on this page.
04
FEATURES AND CONTROLS
⑯
1- Muffler
2- 1 Gallon(3.6L) Capacity Fuel Tank
3- Air Filter
4- Choke Lever
5- 196cc FIRMAN OHV Engine
6- Recoil Starter
7- 10.0"(25cm) Flat Free Wheel
8- Oil Filler Cap
9- Handle
10- 2 in. (5 cm) NPT Outlet
11- 2 in. (5 cm) NPT Inlet
12- Pump Drain Plug
13- Priming Plug
2
①
②
③
⑤
⑥
⑦
⑧
⑨
⑩
⑪
⑫
④
⑬
⑮
⑭
English Customer Service: 1-844-FIRMAN1
05
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.
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 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 m) min.
OPERATION
Operate pump only outdoors, 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 pump 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.
If water pump is operating in trench or pit, do not enter area while engine is running. Carbon
monoxide gas will accumulate in these confined areas.
English Customer Service: 1-844-FIRMAN1
Reduce Risk of Fire
WARNING! Exhaust heat/gases could ignite combustibles, structures or damage fuel
tank causing a fire, resulting in death or serious injury.
06
OPERATION
5 ft.(1.5 m)
min.
5 ft.(1.5 m)
min.
20 ft.(6 m) min.
Keep pump at least 5 ft. (1.5 m) 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 pump indoors
to protect it from the weather.
Do not locate the pump under a deck or other similar structure that may confine heat and
airflow.
English Customer Service: 1-844-FIRMAN1
2. Oil and Gasoline
Add Engine Oil
We recommend using FIRMAN SAE 10W-30 API SJ oil for best performance. Other high-quality
detergent oils (API SJ or higher) are acceptable. Do not use special additives. Ambient temperature
determines the proper oil viscosity for the engine. Use the chart to select the proper oil for the
outdoor temperature range expected.
NOTICE Do not attempt to crank or start the engine before it has been properly filled with the
recommended type and amount of oil. Damage due to operation with no oil will void your warranty.
Degrees Celsiusº(Outside)
Full Synthetic 5W-30
Degrees Fahrenheitº(Outside)
5W-30 10W-40
10W-30
1.Place pump on a flat, level surface.
2.Clean area around oil fill and remove yellow oil fill cap/dipstick.
3.Wipe dipstick clean.
07
OPERATION
(H)
DRAIN PLUG
(L)
H
L
English Customer Service: 1-844-FIRMAN1
4. Using oil funnel, slowly pour contents of provided oil bottle into oil fill opening until oil reaches
upper limit "H" mark on the dipstick. Be careful not to overfill. Overfilling could cause engine
starting problems or engine damage.
5.Replace oil fill cap/dipstick and fully tighten.
6.Oil level should be checked prior to each use or at least every 8 hours of operation. Keep oil
level maintained.
The pump is equipped with a low oil shutdown. If the oil level drops below the minimum required
level, a sensor will activate an internal switch stopping the engine. If the engine shuts off and the
oil level is within specifications, check to see if pump is sitting at an angle. Place pump on an even
surface to correct this. If engine fails to start, the oil level may not be high enough to deactivate
the internal low oil level switch. Make sure the sump is completely full of oil to the upper limit (H).
Do not operate engine until oil level issue is corrected. Contact FIRMAN customer service.
Low Oil Shutdown
Add Gasoline
WARNING! Fuel and its vapors are extremely flammable which could cause burns or fire
resulting in death or serious injury.
Turn pump engine OFF and let it cool at least 2 minutes before removing fuel cap.
Do Not refuel or move pump when engine is running.
Move pump outdoors prior to adding or draining fuel
Keep fuel away from any ignition sources.
Do not overfill tank, allow space for fuel expansion.
If any fuel spills, wait until it evaporates before starting engine
Check and replace fuel lines, tank, cap, and fittings prior to each use if any damage or leaks
are found.
Fuel must meet these requirements:
Clean, fresh, unleaded gasoline with a minimum of 87 octane.
For high altitude use, see Operation at High Altitude.
Gasoline with no more than 10% ethanol is acceptable.
E10
E15
08
OPERATION
English Customer Service: 1-844-FIRMAN1
NOTICE Do not mix oil in gasoline or modify engine to run on alternate fuels not described in this
manual. Use of unapproved fuels could damage engine and will not be covered under warranty.
1. Clean area around fuel fill cap, remove cap.
2. Slowly add unleaded fuel to fuel tank. Be careful not to fill above the RED fuel level indicator.
This allows adequate space for fuel expansion.
Red Line Indicator
3. Install fuel cap and let any spilled fuel evaporate before starting engine.
Operation at High Altitude
At altitudes over 5,000 feet(1524 meters), a minimum 85 octane gasoline is acceptable.
Engine power and generator output will be reduced approximately 3.5% for every 1000 feet (305 m)
of elevation above sea level. High altitude may cause hard starting, increased fuel consumption
and 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
196cc
331717002
331717003
Altitude
3000-6000Feet
6000-8000Feet
Operation at High Ambient conditions
09
OPERATION
Your Firman Power Equipment product is designed and rated for continuous operation at ambient
temperatures up to 104°F (40°C). The Pump may be operated at temperatures ranging from
5°F(-15°C) to 122°F(50°C) for short periods. If the pump is exposed to temperatures outside
this range during storage, the pump should be brought back within this range before operation.
When operated above 77°F(25°C) there may be a decrease in power. Pump suction and discharge
head along with flow are subject to and limited by such factors as ambient temperature, altitude,
engine conditions etc.
(914-1828 m)
(1828 - 2438 m)
English Customer Service: 1-844-FIRMAN1
Semi-Trash Pump Location
10
OPERATION
Place the pump in a well ventilated area.
DO NOT place the pump near vents or intakes where exhaust fumes could be drawn into occupied
or confined spaces. Carefully consider wind and air currents when positioning pump.
This pump must have at least 5 ft. (1.5 m) of clearance from combustible material.
Leave at least 3 ft. (91.4 cm) of clearance on all sides of the pump to allow for adequate cooling,
maintenance and servicing.
Place the pump on a level surface free from any obstructions or potential hazards. The pump
should be placed close to the water level to ensure maximum pump performance.
Pump output will be affected by the type, length, and size of the suction and discharge hoses.
The pumping height, also known as the total head, is the distance from the water level to the
point of discharge. As this distance increases, pump output decreases. The time required to
draw water from the source to the pump (self-priming time) can be decreased by minimizing the
suction head.
TOTAL HEAD
SUCTION
HEAD
DISCHARGE
HEAD
Connecting a Hose Kit
NOTICE Both the intake and discharge ports are 2 in. (5 cm) NPT. Please insure the connectors to
the suction and discharge hose are 2 in. (5 cm) NPT threaded.
The generator cannot be started in Battery Power Saving Mode. Turn main fuel selector switch to
the off position and back to the GAS or LPG position to reset the RED indicator 4-minute
electronic module.
English Customer Service: 1-844-FIRMAN1
11
OPERATION
Connect the Discharge Hose
A
B
C
D
E
F
G
H
I
J
K
L
Connect the Discharge Hose
1. Locate the following: outlet hose adapter ( C ), gasket (A), and outlet hose fitting (B) and align for
assembly.
2. Thread the assembled connector to the outlet fitting (top of pump).
3. Locate and slide the silver colored hose clamp(D) over the outlet hose(E).
4. Slide the discharge hose over the outlet hose fitting. You can use a small amount of dish soap
on the hose fitting to help install the hose onto the outlet hose fitting.
5. Slide the hose clamp in place about midway on the outlet hose adapter . Tighten to 7.4±1.5lbf-ft
(10±2 Nm) with a 10mm wrench. The hose clamp should be placed behind the outlet adapter barbs
on the smooth part of the adapter.
Connect the Suction Hose and Suction Filter
1. Locate the following: Inlet hose adapter (H), gasket (F), and inlet hose fitting (G) and align for
assembly.
2. Thread the assembled connector to the inlet fitting (bottom of pump).
3. Locate and slide the silver colored hose clamp(I) over the inlet hose(J).
4. Slide the suction hose over the inlet hose fitting. You can use a small amount of dish soap
on the hose fitting to help install the hose onto the inlet hose fitting.
5. Slide the hose clamp in place about midway on the inlet hose adapter . Tighten to 7.4±1.5lbf-ft
(10±2 Nm) with a 10mm wrench. The hose clamp should be placed behind the inlet adapter barbs
on the smooth part of the adapter.
6. Place the clamp on the other end of the suction hose. Attach the strainer to the suction hose.
You can use a small amount of dish soap on the hose fitting to help install the hose onto the
strainer hose fitting.
7. Slide the clamp just before the end of the suction hose.
8. Tighten the clamp to 7.4±1.5 lbf-ft (10±2 Nm) with a 10mm wrench.
NOTICE You should have everything connected.
English Customer Service: 1-844-FIRMAN1
12
OPERATION
Priming the Pump
NOTICE DO NOT run the pump dry.
Running the pump dry can destroy the pump seals and will void the warranty. If the pump was
running while dry, stop the engine and allow it to cool thoroughly before filling the chamber with
water.
Located on the outlet flange is the priming plug.
Remove the priming plug and fill pump body to the very top of outlet flange with water. Reinstall
the priming plug. As the engine starts up, this will start the draw of liquid into the pump. Located
within the pump assembly is the one-way valve. As you prime the pump housing this one-way flap
valve shuts off the opening to the suction hose. The priming process is only required when the
pump housing is not full of water.
NOTICE Ensure the priming plug is secure before pump operation, if not secure the priming plug
could be ejected and water could be pumped through the top of the outlet flange.
Pumping water with solids larger than the maximum size listed in the specification section of this
operator's manual can damage the pump and void the warranty. Ensure that correct strainer size
is attached to the suction hose inlet to prevent pumping larger than allowed solids.
WARNING! Pumping flammable liquids could cause fire resulting in death or serious injury.
DO NOT pump flammable liquids.
NOTICE Pumping sea water, beverages, acids, chemical solutions, pesticides, fertilizers or similar
liquids or corrosives can promote corrosion which can damage pump. Pump only water that is not
intended for human consumption.
English Customer Service: 1-844-FIRMAN1
13
OPERATION
Starting the Engine
1. Before starting the pump, 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. Move pump outdoors to safe operating location at least 20 feet from any occupied spaces.
3. If connected make sure the LPG cylinder knob is fully closed or disconnected.
CLOSE
4. Turn the fuel selector switch to “GAS” position.
NOTICE When the fuel selector switch is turned to the GAS position, the indicator light will
turn RED for up to 4 minutes (before going off). Starting the engine successfully anytime during
the 4 minutes will turn the indicator light GREEN. See Indicator light-Battery Power Saving
Mode section for more information.
5. Disconnect all electrical loads from the generator. Never start or stop the generator with
electrical devices plugged in.
6. Move choke lever located on engine to “START” position. You do not need to choke a warm engine.
(For electric start move to step (8))
3. Rotate engine switch (A) to “ON”(I) position.
4. Move the fuel valve (B) to the “ON” position.
5. Move the choke lever (C) to the “Choke” position.
6. Move throttle lever to middle position. (D)
7. Pull the starter cord slowly until resistance is felt and then pull rapidly.
8. As engine warms up, move the choke lever (C) to “Run” position.
9. Move the throttle lever (D) to the “Fast” position.
A
B
C
D
NOTICE Before starting engine, verify pump is primed with water and suction strainer is submerged.
Failure to do so could cause pump damage and void warranty.
English Customer Service: 1-844-FIRMAN1
Stopping the Engine
1. Move the throttle lever(C) to the slow position.
2. Rotate the engine switch(A) to the"OFF" position.
3. Move the fuel valve(B) to the "OFF" position.
Always ensure that the Fuel Valve and the Engine Switch are in the “OFF” position when the
engine is not in use.
14
OPERATION
A
B
C
D
After pump has cooled, remove the priming plug and pump drain plug and allow the pump to
drain thoroughly.
NOTICE Drain water from pump after use. Trapped water could freeze and damage pump. Pump
damage caused by freezing is not covered by warranty.
After each use:
1. Drain pump housing.
2. Disconnect and drain hoses.
3. Clean pump with dry cloth.
4. Store pump in clean, dry area.
5. If storing for more than 30 days, see long term storage.
AFTER EACH USE
English Customer Service: 1-844-FIRMAN1
Maintenance - Storage
15
General Recommendations
Regular maintenance will improve the performance and extend the life of the pump. See any
authorized dealer for service.
The pump'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 pump as
instructed in this manual.
Some adjustments will need to be made periodically to properly maintain your pump.
All service and adjustments should be made at least once each season. Follow the requirements
in the maintenance shedule chart above.
NOTICE Once a year you should clean or replace the spark plug and replace the air filter. New
spark plugs and clean air filter assure proper fuel-air mixture and help your engine run at peak
performance and last longer.
To be performed by knowledgable/experienced owner or by authorized service center.
*
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.
English Customer Service: 1-844-FIRMAN1
When Transporting Pump
Transport with fuel tank EMPTY or with fuel valve in OFF position.
Do not tip pump at an angle which causes fuel to spill.
ENGINE MAINTENANCE
To prevent accidental starting, remove and ground spark plug wire before performing any service.
Change Engine Oil
Change engine oil every 100 hours. (for a new engine, change oil after 25 hours.)
If you are using your pump 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.
NOTICE We recommend using FIRMAN SAE 10W-30 API SJ oil for best performance. Other high-
quality detergent oils (API SJ or higher) are acceptable. See Oil and Gasoline
16
Maintenance - Storage
DRAIN PLUG
(a) On a level surface drain oil into a suitable container by removing the drain plug and the oil
filler cap while the engine is warm.
(b) Reinstall the drain plug and fill the engine with oil until it reaches the HIGH(H) level on the
oil filler dipstick.
(H)
DRAIN PLUG
(L)
English Customer Service: 1-844-FIRMAN1
Air Filter Maintenance
( c) Saturate foam air filter element with clean engine oil and squeeze in a clean cloth to remove
excess oil.
Spark Plug Maintenance
Changing the spark plug will help your engine start easier and run at peak performance.
(a) Remove the spark plug boot.
(b) Remove spark plug using provided wrench.
17
(d) Reassemble the element. Reattach the air filter cover and tighten wing nut.
Maintenance - Storage
(a) Unscrew wing nut to remove the air filter cover.
(b) Remove the foam element and wash in liquid detergent and water.
Squeeze dry in a clean cloth.
English Customer Service: 1-844-FIRMAN1
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 touch 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.
18
Maintenance - Storage
A- Spark plug
B- Spark plug boot
A
B
( c) Inspect spark plug for damage and clean with a wire brush before reinstalling. Replace if
damaged.
(d) Adjust the electrode gap to 0.028 - 0.031 in. ( 0.7 - 0.8 mm).
(e) Seat spark plug in position and thread by hand to prevent cross threading.
(f) Tighten plug with provided wrench and put the spark plug boot back on spark plug.
0.028-0.031 in.
(0.7-0.8mm)
SPARK PLUG: TORCH F6RTC
English Customer Service: 1-844-FIRMAN1
Inspect Muffler and Spark Arrester
1. Inspect the muffler for cracks, corrosion, or other damage.
2. Remove the screws securing the spark arrester in place and the remove it from muffler.
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 screws.
NOTICE Failure to clean or replace spark arrester may result in decreased engine performance.
19
Maintenance - Storage
English Customer Service: 1-844-FIRMAN1
20
Maintenance - Storage
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 pump 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 pump 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. Allow the engine to cool completely before storage.
2. Clean the engine according to the instructions in the Maintenance section.
3. Drain all fuel completely from the fuel line and carburetor to prevent gum from forming.
4. Add a fuel stabilizer into the fuel tank.
5. Change the oil.
6. Remove the spark plug and pour about ½ ounce (14.8 ml) of oil into the cylinder. Crank the engine
slowly to distribute the oil and lubricate the cylinder.
7. Reinstall the spark plug.
1. Allow the pump to cool completely before storage.
2. Turn off the fuel supply at the fuel valve.
3. Drain the pump chamber thoroughly.
4. Clean the pump according to the instructions in the Maintenance section.
5. Once the pump is dry, spray WD-40 or similar product into the pump housing through all ports
and drainage hole. Once complete reinstall all plugs prior to storage.
6. Store in a clean, dry place out of direct sunlight.
Engine Storage
Pump Storage
Troubleshooting – Specifications
English Customer Service: 1-844-FIRMAN1
21
Problem Cause Correction
Pump will not start.
1. No fuel
1. Add fuel.
2. Replace spark plug.
Pump will not start;
Trash pump starts but runs
roughly.
Pump shuts down
during operation.
Pump overheating
or performing poorly.
Pump will not draw water
For all other issues, contact authorized dealer or Firman customer service.
2. Faulty spark plug
1. Low oil level
2. Choke in the wrong position.
3. Spark plug wire loose.
1. Fill crankcase to the proper
level; place trash pump on a
flat, level surface.
2. Adjust choke.
3. Attach wire to spark plug.
1. Out of fuel.
2. Low oil level.
1. Fill fuel tank.
2. Fill crankcase to the proper
level; place water transfer pump
on a flat, level surface.
1. Strainer or hose clogged.
2. Pump not primed.
3. Suction hose out of water.
4. Head limit exceeded
5. Air leak
1. Remove debris from strainer
or hose.
2. Re-prime pump
3.Place suction hose under the
surface of the water.
4. Relocate pump so suction head
is less than discharge head
(maximum 98 feet)
5. Tighten connectors and clamps
or replace seal packing.
1. Water not added to pump
2. Hose clamps on inlet hose are
not tight
1. Review “Priming the Pump”
section of this manual
2. Even small pinhole leak can
result in vacuum loss preventing
pump from priming. Check hose
clamps to ensure they are tight.
Adjust clamp position if necessary.
SPECIFICATIONS
English Customer Service: 1-844-FIRMAN1
22
Troubleshooting – Specifications
Model
FPG20T
Semi-Trash
2 in. (5 cm)
NPT
158 GPM (600 LPM)
85 ft. (26m)
26 ft. (8m)
Cast Iron
Cast Iron
1/2 in. diameter (1.27 cm)
25 ft. (7.6m)
15 ft (4.6m)
Gasoline
Recoil
FIRMAN
196cc
4-stroke
1 gal (3.6L)
10W-30
20.3 fl. oz (600ml)
Water Pump Type
Port Diameter
Port Connection Type
Discharge Rate
Total Head
Suction Head
Impeller Material
Volute Material
Max Solid Waste
Discharge Hose Length
Suction Hose Length
Power Type
Start Type
Engine Brand
Engine Size
Engine Type
Gasoline Capacity
Engine Oil Type
Engine Oil Capacity
PARTS DIAGRAM AND PART LIST
FPG20T PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
23
196cc ENGINE PARTS DIAGRAM
English Customer Service: 1-844-FIRMAN1
24
FPG20T Pump
English Customer Service: 1-844-FIRMAN1
25
Parts Diagrams - Parts Lists
NO.
Part Number
Description
Qty.
1
2
3
4
5
6
7
8
9
10
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15
10.16
10.17
10.18
10.19
10.20
10.21
10.22
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
12
13
14
15
16
16.1
16.2
16.3
302467001
302417001
302427001
302417002
302717001
302717002
336713807
357713548
302427002
302417003
302717003
302717004
302717005
302717006
302717007
302717008
302717009
302717010
302717011
302717012
302717013
302717014
302717015
302717016
302717017
302717019
302717020
302717021
302717022
302717023
302717024
302717025
302417004
302417005
336713558
357713585
336713562
336713563
302717018
302717026
302717027
302717001
302717028
336713510
302717029
302717030
302717031
302717032
336713510
302717033
Engine Assy.
Fuel Tank
FUEL FILTER, WIRE MESH
Fuel Cap
Nut M6
Bolt M6×33
Tank fitting with filter
Clamp
Fuel Hose
2" Trush Pump
Pump Cover
Pin 6×24
Washer
Bolt 5/16-24×30
Sealing Ring
Water Seal
Friction Block
Sealing Ring
Impeller
Impeller Cover
Sealing Ring
One-way Valve
Pump Body
Sealing Ring
Plug
Bolt M6
Joint
Sealing Ring
Interface Nut
Clamp
Filter Joint
Filter
Frame Assy.
Frame
NUT M8
Isolator 3
Isolator 1
Isolator 2
Bolt
Bolt
Handle Assy.
Nut M6
Isolator
FLAT WASHER Ø8
Bolt M8×20
Nut M8
Pin Assy.
Pin
FLAT WASHER Ø8
Pin 2
1
1
1
1
2
1
1
2
1
1
1
1
4
4
1
1
1
1
1
1
1
1
1
2
2
6
2
2
2
3
1
1
1
1
4
2
1
1
1
2
1
3
1
2
2
2
1
1
1
1
NO.
Part Number
Description
Qty.
17
18
18.1
18.2
18.3
18.4
19
20
21
22
23
24
25
336713593
302717034
317718304
302717035
302717036
336718314
336713558
302717037
357713592
357713514
357713536
302427003
302427004
Flange Bolt M8×45
Foot Assy.
Bolt M6×20
Gasket
Foot
NUT M6
NUT M8
Axle
Wheel
FLAT WASHER Ø10
COTTER PIN
Intake Hose
Discharge Hose
2
2
2
2
2
2
4
2
2
2
2
1
1
NO.
Part Number
Description
Qty.
1
2
2.1
2.2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
336713528
357723577
336728300
336728301
336723585
330723523
336723587
336723588
336723589
336723590
336723592
336723591
336723593
330713555
302467002
336718302
302767002
302767003
302767004
302767005
317718304
336723578
302467001
336723583
357723569
336723573
336723514
336723513
302767006
336723511
302767007
330723506
302767008
336723507
317723516
336723510
336718301
336723502
302767009
330723604
330723603
336723595
336723594
336723596
336723597
336723598
336723515
336723517
336723516
302767010
Flange. Bolt M6×8
Grip,starter
Handle Croe
Recoil Starter Knob
Case Comp.,recoil Starter
Reciol Starter Spring
Cord
Pulley,recoil Starter
Spring,patchet
Patchet,starter
Clip Sprg.,pawl Guide
Pawl Guide
Screw,pawl Guide
Nut M14
Pulley,starter
Bolt M6x12
Diode Assy.
Flameout Wire
Engie Switch
Engine Cover Assy.
Bolt M6×20
Air Guide, Right Side
Cooling Fan
Flywheel Comp
Bolt
Ignition Coil
Flg. Bolt M8×32
Seal, Oil
Crankcase Cover
Oil Dipstick Assy
Oil Dipstick
Bearing 6205
Crankshaft
Woodruff Key
Dawl Pin
Gasket, Crankcase
Bolt M6x12
Sensor, Engine Oil
Crankcase
Bolt, Drain
Washer,drain Bolt
Inner Washer,gear
Gov.,gear Shaft
Gear, Governor
Clip, Govorner Gear
Bushing, Govorner Gear
Rod, Connecting
Pin, Piston
Clip, Piston Pin
Oil Ring
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
4
1
1
1
1
1
1
1
1
2
1
6
2
1
1
1
2
1
1
2
1
2
1
1
2
2
1
1
1
1
1
1
1
2
1
English Customer Service: 1-844-FIRMAN1
26
Parts Diagrams - Parts Lists
NO.
Part Number
Description
Qty.
302767011
302767012
302767013
302767014
330723548
336713528
336723523
302767015
336723539
336723527
302767016
336723525
336723526
336723504
336723544
336723543
336723538
336723537
336723531
336723529
336723528
336723541
336723542
336723536
336723535
336723533
336723534
336723532
302767017
336723563
336723564
336723565
336713517
336723566
336723567
336723568
336723569
336723570
336723530
336723556
336723549
336723550
336723551
336723552
302767018
302767019
302767020
302767021
302767022
317718304
FIRMAN 196cc Engine
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
96.1
96.2
96.3
Piston Ring 2
Piston Ring 1
Piston
Cylinder Head Gasket
Locating Pins
Flg. Bolt M6×8
Air Guide Lower
Cylinder Head Assy.
Exhaust Valves Stud Bolt
Flange Bolt M8×55
Cylinder Head Cover
Bolt M6×15
Gear Assy, Governor
Tappet, Valve
Push Rod
Plate Subassembly
Bolt, Valve Adjusting
Rocker, Valve
Nut Valve Adjusting
Nut, Valve Lock
Valve,in.take
Valve, Exhaust
Oil Seal,valve
Spring,valve
Retainer, Intake Valve
Retainer, Exhaust Valve
Rotator, Valve
Governor Assy.
Shaft, Governor Arm
Rocker Shim
Pin, Shaft
Nut M6
Arm, Governor
Bolt, Governor Arm
Spring, Governor
Rod, Governor
Breather Tube
Spark Plug
Stud, Intake
Gasket, Inlet
Plate, Carburetor Insulator
Gasket, Carburetor
Carburetor
Air Cleaner Gasket
Air Cleaner
Air Cleaner Base
Gasket
Bolt M6×20
1
1
1
1
2
2
1
1
2
4
1
1
4
1
2
2
1
2
2
2
2
1
1
2
2
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
Spring, Throttle Valve Returning
Cylinder Head Cover Gasket
English Customer Service: 1-844-FIRMAN1
27
Parts Diagrams - Parts Lists
302767023
357713550
302767024
302767025
302767026
302767027
336713536
302767028
302767029
336713533
336713509
336713534
96.4
96.5
96.6
96.7
97
98
98.1
98.2
98.3
99
100
101
Element Assy.
Wing Nut M6
Air Cleaner Cover
Nut
Muffler Gasket
Muffler Assy.
Arrester, Spark
Holder, Spark Arrester
Screw M5×10
Flat Washer Ø8
Lock Washer Ø8
Nut M8
NO.
Part Number
Description
Qty.
1
2
1
1
1
1
1
1
2
1
1
1
English Customer Service: 1-844-FIRMAN1
28
Service – Warranty
FIRMAN 3 Years 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 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
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.
SERVICE INFORMATION CONTACT FIRMAN PRODUCT SERVICE DEPARTMENT AT 1-844-347-6261
or at www.firmanpowerequipment.com to obtain warranty service information or to order
replacement parts or accessories.
HOW TO ORDER REPLACEMENT PARTS
Even quality-built equipment such as this pump 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 pump.
English Customer Service: 1-844-FIRMAN1
29
Service – Warranty
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
MERCHANTABLILITY 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.
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, modified, installed improperly or connected incorrectly.
Normal maintenance is not covered by this warranty.
Other Exclusions
This warranty excludes:
– Cosmetic defects such as paint, decals, etc.
– Wear items such as filter elements, seals, etc.
– Accessory parts such as hoses, hose fittings, etc.
– 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.
English Customer Service: 1-844-FIRMAN1
FIRMAN POWER EQUIPMENT INC.
Emission Control System Warranty
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 US Environmental Protection Agency (“US EPA”) and FIRMAN POWER EQUIPMENT INC.(FIRMAN)
are pleased to explain the emissions control systems warranty on your 2022-2023 or later Small
Off-Road Engine (“SORE”) and engine powered equipment. New equipment that use small off-road
engines must be designed, built and equipped to meet the U.S. EPA regulations for small off-road
engines (SORE). FIRMAN warrants the emission control system on your small off-road engine (SORE)
and equipment for the period of time listed below, provided there has been no abuse, neglect,
unapproved modification, or improper maintenance of your equipment.
Your emission control system may include parts such as the carburetor, fuel-injection system,
the ignition system, catalytic converter and fuel lines. Also included may be hoses, belts,
connectors and other emission related assemblies. Where a warrantable condition exits, FIRMAN
will repair your small off-road engine (SORE) 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:
30
Service – Warranty
Firman Power Equipment Inc.
Attn: Customer Service
8644 W. Ludlow Dr.
Peoria, AZ 85381
1-844-FIRMAN1
www.firmanpowerequipment.com
YOUR WARRANTY RIGHTS AND OBLIGATIONS
P/N:302747003 Rev:00
All rights reserved. Any reprinting or unauthorized use
without the written permission is expressly prohibited.
TM
FIRMAN POWER EQUIPMENT
8644 W. LUDLOW DR.
PEORIA, AZ 85381
1-844-347-6261
WWW.FIRMANPOWEREQUIPMENT.COM
