TOHATSU PORTABLE FIRE PUMPS
OWNER’S MANUAL
Models
V25A V25AS
V20E V20ES
V20D2 V20D2S
TOHATSU CORPORATION
INTRODUCTION
Thank you for purchasing the Tohatsu Fire Pump.
This manual will guide you thru proper handling thus assuring maximum
performance, efficiency and safety.
We recommend all users to read this manual thoroughly before operating the
Tohatsu fire pump. Being familiar with all aspects of its application will
guarantee best performance.
■
This pump is designed for fire fighting and should be handled by fire
fighters only, who are trained with its operation.
■
Specifications, improvements and appearance are subject to change
without notice.
■
Required maintenance and periodic inspection, should be conducted by
authorized Tohatsu Fire Pump dealers.
■
For more information not covered in this manual, contact your authorized Tohatsu Fire Pump Dealer.
MANUFACTURE AND AFTER-SALES-SERVICE ADDRESS
TOHATSU CORPORATION
Address : 3-5-4 Azusawa, Itabashi-ku, Tokyo, JAPAN
Facsimile : +81 (0) 33966-2951
Phone : +81 (0) 33966-3137
Identification Number
The pump identification number is marked
on the pump casing.
NOTICE
●
Owner’s manual
Read this manual carefully.
Keep this manual in a safe place available to all operators.
This manual should accompany the Fire Pump if sold to another person.
●
Maintenance and periodic inspections should be performed to ensure
readiness in case of emergency.
●
Warnings:
Before operating the Tohatsu fire pump throughly read this manual.
Understanding proper operation procedures includes “DANGER”,
“WARNING”, “CAUTION” and “Note”. These notices are designed
to bring attention to very important information necessary to ensure safe
and trouble free operation.
Failure to observe will result in severe personal
injury or death.
WARNING
CAUTION
Note
Failure to observe could result in severe
personal injury or death.
Failure to observe could result in minor personal
injury or product or property damage.
This instruction provides special information to
facilitate the use or maintenance of the pump or
to clarify important points.
CONTENTS
SPECIFICATIONxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1
MAIN COMPONENTSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx4
LABELSxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx5
OPERATING PRECAUTIONS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx6
PREPARATION FOR OPERATIONxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.8
OPERATING PROCEDURESxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx12
WATER SUCTION AND DISCHARGExxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx14
STOPPING xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx16
PRECAUTIONS AFTER OPERATION xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx17
COLD WEATHER PRECAUTIONS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.19
USING ACCESSORIES xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx20
MAINTENANCE AND INSPECTION xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx23
PERIODICAL INSPECTIONxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx24
TROUBLE SHOOTING xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx25
TOOLS AND ACCESSORIES xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx26
WIRING DIAGRAM xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx27
SPECIFICATIONS
Overall dimensions and mass
V25A
Length & Width & Height
Mass
V25AS
Approx. 560×475×530 mm (22.0×18.7×20.9 in.)
Approx. 37 kg( 82 lb.)
Approx. 43 kg( 95lb.)
2-cycle, single vertical cylinder, air-cooled gasoline
engine
Type
Engine
Bore & stroke & nos. of
66×58 mm (2.60×2.28 in.) ×1
cylinder
Displacement
198 mℓ (12.1 cu. in.)
Authorized output
8.6 kW (11.7ps)
Fuel tank capacity
Approx. 3.5ℓ (0.92US gals.)
Fuel consumption
Approx. 4.9ℓ/H (1.29US gals./H)
Lubrication system
Auto mixing
Ignition system
Flywheel magneto, C.D. Ignition
Spark plug
NGK B7HS
Starting system
Manual
Floodlight projector *
Battery capacity
Pump
Starter motor and manual
12V-35W
−
12V-14Ah/10Hr
Type
Single suction, single stage, turbine pump
Discharge valve type
Ball valve
Discharge port coupling & 2-1/2” (mail British Standard Pipe Thread)
Suction port coupling
at 0.55MPa
650ℓ/min. (172US gals. /min.)
(72.5ibs/in2)
Discharge
volume
at 0.8MPa
(101.5ibs/in2)
Maximum suction height
400ℓ/min. (106US gals. /min.)
Approx. 9 m (29.5 ft.)
＊: Option
-1-
Overall dimensions and mass
V20D2
Length & Width & Height
V20D2S
Approx. 555×470×532 mm (21.9×18.5×20.9 in.)
Approx. 36 kg
( 79 lb.)
Mass
Approx. 42 kg
( 93lb.)
2-cycle, single vertical cylinder, air-cooled gasoline
engine
Type
Engine
Bore & stroke & nos. of
66×58 mm (2.60×2.28 in.) ×1
cylinder
Displacement
198 mℓ (12.1 cu. in.)
Authorized output
8.6 kW (11.7ps)
Fuel tank capacity
Approx. 3.5ℓ (0.92US gals.)
Fuel consumption
Approx. 4.9ℓ/H (1.29US gals./H)
Lubrication system
Fuel mixture (gasoline 30:engine oil 1)
Ignition system
Flywheel magneto, C.D. Ignition
Spark plug
NGK B7HS
Starting system
Manual
Floodlight projector *
Battery capacity
Pump
Starter motor and manual
12V-35W
−
12V-14Ah/10Hr
Type
Single suction, single stage, turbine pump
Discharge valve type
Standard valve
JIS-B-9912 dimensions of screwed type coupling for fire
Discharge port coupling & hose 2-1/2” (φ82.5, 5 threads per inch, thread angle
55°)
Suction port coupling
at 0.5MPa
650ℓ/min. (172US gals. /min.)
(72.5ibs/in2)
Discharge
volume
at 0.7MPa
(101.5ibs/in2)
Maximum Suction height
400ℓ/min. (106US gals. /min.)
Approx. 9 m (29.5 ft.)
＊: Option
-2-
Overall dimensions and mass
V20E
Length & Width & Height
V20ES
Approx. 515×470×532 mm (20.3×18.5×20.9 in.)
Approx. 40 kg
( 88 lb.)
Mass
Approx. 46 kg
( 101 lb.)
2-cycle, single vertical cylinder, air-cooled gasoline
engine
Type
Engine
Bore & stroke & nos. of
66×58 mm (2.60×2.28 in.) ×1
cylinder
Displacement
198 mℓ (12.1 cu. in.)
Authorized output
8.6 kW (11.7ps)
Fuel tank capacity
Approx. 3.5ℓ (0.92US gals.)
Fuel consumption
Approx. 4.9ℓ/H (1.29US gals./H)
Lubrication system
Auto mixing
Ignition system
Flywheel magneto, C.D. Ignition
Spark plug
NGK B7HS
Starting system
Floodlight projector
Manual
Battery capacity
Pump
Starter motor and manual
12V-35W
*
−
12V-14Ah/10Hr
Type
Single suction, single stage, turbine pump
Discharge valve type
Ball valve
Discharge port coupling & 2-1/2” (mail British Standard Pipe Thread)
Suction port coupling
at 0.5MPa
650ℓ/min. (172US gals. /min.)
(72.5ibs/in2)
Discharge
at 0.7MPa
volume
400ℓ/min. (106US gals. /min.)
(101.5ibs/in2)
Maximum suction height
Approx. 9 m (29.5 ft.)
＊: Option
-3-
MAIN COMPONENTS
Discharge
valve handle
Carrying handle
Pressure gauge
(Compound pressure gauge)
Throttle dial
Suction lever
Recoil starter handle
Vacuum gauge
(Compound pressure
gauge)
Fuel cock
Socket
Fuel drain pot
＊Fuse
Fuel drain knob
Carburetor
＊Main switch
☆Stop switch
Fuel tank cap
Fuel gauge
Spark plug cap
Fuel tank
Govrner oil gauge
Vacuum pump
Strainer cap
for Vacuum pump
＊Battery
Discharge port
adaptor (opt)
Suction
port cap
Muffler
Drain cock
Remarks
＊：Only for Model S
☆：Only for Model M
Vacuum pump
drain pipe
-4-
LABELS
DANGER, WARNING & CAUTION
Instruction label
Fuel danger label
Exhaust gas warning label
Spark plug & High voltage
caution label
Muffler caution label
CE
LABEL
CE label
-5-
OPERATING PRECAUTIONS
To avoid improper fire pump handling, read and follow the notices below.
WARNING
Do not start or operate the fire pump engine in
indoors. Area of operation must be well
ventilated. Exhaust gases contain carbon
monoxide, a colorless, odorless gas which
can be fatal if inhaled.
WARNING
Serious injury will result if pulleys, belt or any
moving parts are touched while the engine is
running. Never touch these moving parts.
CAUTION
While engine is running, never touch the
high voltage ignition wire attached to spark
plug. This wire carries very high voltage
which will cause injury and bodily harm.
CAUTION
Do not touch the exhaust pipe and the
muffler while the engine is running or for 10
minutes after the engine has been stopped.
These parts are very hot and will cause
severe burns.
-6-
CAUTION
(1) Do not operate pump near combustibles. (Distance should be greater
than 3m.)
(2) Do not operate pump on dry grass. The exhaust system gets very hot
and will ignite dry grass. Clear area if necessary.
(3) During operation, check the suction and discharge hoses.
They must be free of kinks, pinches, etc., possibly caused from emergency vehicles rolling over hose.
(4) Do not start engine with discharge valve open.
(5) Open and close the discharge valve at slow speeds.
(6) The person holding the branch pipe must be notified of changes in
water discharge pressures caused from engine speed changes or discharge valve setting changes.
(7) The nozzle operator should utilize a shoulder belt to support the hose
and nozzle pressure. It may be necessary for two(2) persons to hold
the branch pipe.
(8) High pressure water stream should not be directed toward people
under any circumstances.
(9) Do not look into nozzle opening at any time.
(10) Suction port cap should be securely in place when pump is operated
with hose disconnected.
(11) Do not put fingers or hand into discharge nozzle.
(12) Fire pump is heavy, care should be taken to avoid personal injury
and not to drop the pump when moving or lifting.
(13) Always clean up oil spills observing proper practices.
(14) Disposing of batteries, gasoline, oil and other hazardous materials
should be handled by an authorized hazardous material disposal site
who will observe local laws concerning these materials.
(15) This fire pump is not recommended for civil work, cleaning, irrigation,
sprinkling, etc.
(16) This fire pump is designed to pump water only. Do not pump combustible liquids, chemicals or caustic liquids with this fire pump.
-7-
PREPARATION FOR OPERATION
(1) Fuel & Engine oil
１. Fuel
● V25A(S)/V20E(S)
Fill gasoline(87 octane minimum at pump
posted rating…91 based on the research
octane rating method)into the fuel tank.
○ Please position the ``F” and gasoline fueling.
Check fuel level gauge adding fuel
before tank empties. Keep fuel tank
full at all times to ensure readiness.
● V20D2(S)
Fill fuel tank with gasoline (87 octane minimum at pump posted rating) and two cycle
engine oil at a ratio of 30: 1 (30 parts of
gasoline to 1 part two-cycle engine oil).
Fuel tank holds approximately 3.5 liters,
this will allow the engine to run at full
throttle for approximately 45 minutes.
-8-
Gasoline
2. Engine oil
● V25A(S)/V20E(S)
Fill two stroke engine oil into the oil tank.
○ Please fill tank to engine oil
``UPPER LEVEL”.
Oil level sensor
The oil tank has an oil level sensor as standard.
Oil level is low, the caution buzzer will sound.
Engine oil
DANGER
Gasoline vapor is very explosive. Care must be taken
when filling the fuel tank and draining carburetor.
Errant sparks, smoking and other sources of fire,
heat, sparks and static electricity can cause
explosion.
DANGER
Gasoline vapor is present, flame, sparks, static electricity and
heat can cause explosion and fire.
●Do not smoke.
●Stop engine before filling fuel tank.
●Do not spill gasoline, or overfill fuel tank.
CAUTION
●Gasoline fumes are very toxic. Do not breathe in vapor!
●Mix gasoline and oil in a well ventilated area.(V20D2S)
●Fuel tank should be filled only when the engine has Sufficiently cooled.
●Fuel tank cap should be always tightly closed. Fuel tank cap should be
removed only to fill fuel tank.
●Properly clean up all fuel spills(checking for gasoline vapor before starting engine.
-9-
UPPER
LEVEL
LOWER
LEVEL
Note：
(1) Use of low-quality gasoline results in a short engine life as well as starting difficulties and other engine problems.
(2) Gasoline
containing
alcohol
{methanol(methyl),
or
ethanol
(ethyl)},acetone or benzene, may cause：
○Wear and damage to bearings, cylinder, piston and piston rings.
○Corrosion of metal parts.
○Deterioration of rubber parts and plastic parts.
○Starting, idling, and other engine performance problems.
(3) Do not use gasoline that contains more than 10% ethanol or more than
5% methanol.
(4) Damages resulting from the use of gasoline that contain alcohol,
acetone or benzene are not covered under the limited warranty.
(2) Governor case oil
Before using fire pump, check governor case oil level. To check, remove oil
gauge. Oil level should be at the full
line on the gauge. If oil is needed, add
2-cycle engine oil from the oil gauge
port up to the full line mark.
Oil gauge
Upper level
- 10 -
Lower level
(3) Discharge valve and pump case water drain cock
Make sure the discharge valve and drain cock are closed.
Close
Close
Open
V25A(S)
V20E(S)
Open
Close
Drain cock
V20D2(S)
(4) Battery installation and initial charge: (Model S)
The battery mounted on the engine can be used immediately after filling
cells with electrolyte (1.28 specific gravity at 20。C=68。F). Refer to the
INSTRUCTIONS on the battery.
Note:
Do not operate the engine without the battery, the gauge lamp may
burnout.
- 11 -
OPERATING PROCEDURES
Locating pump:
①Set the pump in a place where is flat and near a water source to be
easy operation.
②Connect suction hose and delivery hose to the pump securely. Put end
of suction hose in water source.
＊The suction hose must have a strainer and a basket.
③Water discharge is made by a branch pipe with nozzle fitted.
Recommended nozzle bores are within the range below.
Low pressure 21mm through High pressure 15.5mm
Note:
Nozzle bores larger than 21mm can cause pump damage.
Starting engine:
CAUTION
Wear proper hearing protection during operation.
(1) Open the fuel cock to OPEN position, this will
allow fuel to flow to the carburetor.
Note:
This model is equipped with an automatic
choke carburetor. This has no choke lever for
manual.
Auto choke carburetor
(2) Set the throttle dial at the “SUCTION•START”
position.
- 12 -
(3) Starting engine
Recoil Starter type
Engage the starter ratchet by
pulling the starter handle slowly towards you. When you feel the
ratchet engage, pull the handle
sharply (holding the fire pump in
place with your foot).
After engine starts, return the
starter handle to the original position slowly. Do not let the starter handle
go off, this can cause damage to the recoil starter.
Electric Starter type
Turn the main switch to START position.
●Release the main switch immediately after
the engine starts.
Main switch
OFF−ON−START
Note:
1. Extended operation of the starter motor will
Main switch
run the battery down. Operate the starter
OFF−ON−START
motor for maximum 5 seconds. If the engine
does not start, wait for 10 seconds before operating the starter motor again.
2. NEVER operate the starter motor once the engine has started.
3. If the starter motor won’t turn over, check that the battery terminal connections are tight and the battery is fully charged.
Remark:
If electric starter will not start to work, use recoil starter.
- 13 -
WATER SUCTION AND DISCHARGE
(1) Lift the suction lever up.
○ Lifting the suction lever up will put
tension on the “V” belt leading vacuum pump to operate for water suction.
Suction lever
(2) Check water exiting from the vacuum
pump drain pipe. You should see a
continuous flow of water. Return the
lever to its original position.
Drain pipe
Notes:
●If water is not seen at the drain pipe within 30 seconds, check items
listed in the trouble shooting table.
●When priming water from a water source that is considerably lower
than the pump, suction may fail to bring water up to pump.
●This engine is air cooled, but should be operated at slow speeds when
pump is running dry. Pump may be damaged if operated for more than
30 minutes at slow engine speeds for protecting mechanical seal.
- 14 -
(3) Open the discharge valve by turning
the handle to the left (counter clockwise).
○Before opening water discharge valve,
be sure to warn the person holding
the branch pipe.
○The discharge port can be turned approximately 90 degrees towards the
muffler side.
Open
V20D2(S)
Open
V25A(S)
V20E(S)
Note:
If a portion of the suction hose is elevated above the suction port, air can
accumulate in hose. When discharge valve is opened, water in the suction hose may fall not reaching the discharge port. If this occurs operate
the vacuum pump again.
(4) After confirmation of normal water, flow is established to increase engine
speed to desired discharge pressure by monitoring pressure gauge.
Throttle dial
Pressure gauge
- 15 -
STOPPING
(1) Return the throttle dial to LOW position.
(2) Close the discharge valve.
(3) Model M: Stop the engine by pushing the stop switch.
Model S: Turn the main switch to OFF position.
(4) Close the fuel cock to CLOSE position.
(5) Open the drain cock. After checking all the water has been drained from
the pump, close the cock.
Main switch
STOP
SWITCH
OFF−ON−START
Close
V20D2(S)
Close
Close
Open
V25A(S)
V20E(S)
- 16 -
PRECAUTIONS AFTER OPERATION
(1) After operation, drain the pump by opening the drain cock. When draining is finished, close drain cock. The fire pump is
stored with the drain cock closed.
(2) Before storing pump, flush with fresh
water to purge any debris from pump.
(Salt water, muddy water, contaminated
Close
Open
water, etc.)
(3) Rubber gaskets, O rings, seals for the delivery and suction hose fittings wear: Worn
rubber seals will cause water leaks, poor vacuum, etc. Frequent inspection of these items is mandatory.
(4) Make sure to check fuel (mixed fuel) to keep pump filled with them so
that fire-fighters are ready to be used at any time.
- 17 -
Note:
①Check fuel once a month, and change the fuel when it gives off a stink
or is turbid.
②Draining fuel from the carburetor
Before storing the pump long-term, drain the fuel from the float chamber.
a. After stopping the engine, close the fuel cock.
b. Pull the knob of the drain valve. (Fuel in the float chamber will flow
out.)
c. After all the fuel has drained, release the knob. (The drain valve will
return to the closed position.)
d. Fuel from the drain pot should be returned to the fuel tank.
Drain valve
Knob
Open←→Close
Check the hose is secured
to the drain pot.
Drain pot
The pot must be emptied
each time.
CAUTION
Drained fuel collects into the drain pot. This must be emptied into the fuel
tank.
(5) Cleaning of oil less vacuum pump
If the strainer is dirty with dust,
etc., the vacuum efficiency will be
dropped. Remove the cap and
the strainer and then clean the
strainer with fresh water.
Strainer
- 18 -
Cap
COLD WEATHER PRECAUTIONS
(1) Anti-freeze Application
①Thoroughly drain water in the pump casing and close drain cock.
②Pour approximately 400 to 500cc of antifreeze solution into the pump
case through the suction port then close the port by the cap.
③Set the throttle dial at the “SUCTION • START” position, and start the
engine then pull the water suction lever. While operating the vacuum
pump open the drain cock, pump will draw air. Run for approximately
30 seconds. This will distribute the anti-freeze solution through out the
pump.
④After running, it is recommended to pour anti-freeze solution in seal
area of the discharge valve using a funnel.
(2) Battery : [Model S]
Battery performance is severely effected by low temperatures. Low battery electrolyte specific gravity will lead to possible freezing of the electrolyte. To avoid this keep battery fully charged (1.280 specific gravity).
(At 1.10 specific gravity the electrolyte will freeze at approximately−10°C /
14°F)
Note) Battery will not be useable if allowed to freeze.
- 19 -
USING ACCESSORIES
(1) Automatic battery charger [Model S]
Please take the following procedures to charge the battery:
①Check and confirm the volume of the electrolyte for battery (dilute sulfuric acid) removing dust and no loosening of the terminals.
②Insert the plug of the charge into the consent on the pump side.
③Insert the input plug into the alternative current source.
④Put the power switch to “ON” position, so that the green lamp lights and
charging will start.
⑤Normally just leave it in charging condition. Please refer to the
“Remarks”.
Input plug
Consent
Power lamp
Breaker
Power switch
Charging plug
Remarks:
This is an Automatic battery charger. Just leave the battery in charging condition even when the battery has been nearly charged fully, since the charging currency will be automatically weakened and change over to subsidiary
charging.
However, remove the charging plug after pushing the power switch to “OFF”
position when the pump is moved and operated.
Cautions:
• The battery charger should be put on a incombustible table or hang it on a
wall in a dry and well-ventilated location.
• If the connection with the terminals ((+) (–)) were wrongly made at the
poles in reverse, the breaker will work to cut the electric currency.
Connect the plugs correctly to (+) and (–) terminals, and then put the break- 20 -
er to “ON” position.
• The auto battery charger equips the electrical circuit protector.
When the auto battery charger gets abnormally hot, the protector starts
functioning so that the power lamp automatically turns off and the auto
battery charger stops charging. After the auto battery charger gets normal
temperature, the power lamp automatically turns on and the auto battery
charger restarts charging.
Maintenance:
• As the electric potential is reduced due
to self discharge even when the battery
is not being used, be sure to check the
battery once a month. Add distilled
water if the level is lower than the
specified level and charge the battery.
• It is recommended to measure the specific gravity with a hydrometer. The
specific gravity should be 1.28 in the
fully charge condition (at ambient tem-
UPPER LEVEL
LOWER LEVEL
1.200
perature of 20℃(68°F)).
• To keep surfaces of the battery, clean
1.28
at all times.
1.300
• The battery life is normally 2 years
even if the battery is used properly.
Replace with new battery every 2 years
checking the deterioration of the charging performance.
• When connecting battery wires, attach the positive (+) battery wire first.
(When disconnecting battery, remove the negative (–) wire first.)
• Battery electrolyte is a very caustic acid which will cause severe burns to
your skin and damage to clothing. Hydrogen gases emitted form the battery are also capable of causing severe burns to skin and damage to
clothing.
- 21 -
CAUTION
Read cautions attached to the battery carefully before use.
WARNING
Hydrogen gases from the battery are explosive. Keep
battery away from flame and sparks.
WARNING
Charge battery in well ventilated area. Do not charge
battery in unventilated area.
(2) Pumping plate
When the fire pump is used as a storage pump for disaster prevention,
the pumping plate must be installed to avoid pump cavitation which will
lead to pump damage.
Install the pumping plate between the discharge port adaptor and the
packing as shown in the figure below. With the pumping plate in place
the pump can be operated without a hose nozzle.
Discharge port adaptor
(OPTION)
Packing
Pumping plate
- 22 -
MAINTENANCE AND INSPECTION
Please pay your serious attention to maintain the pump in a perfect
condition by periodically checking and storing in a good condition enabling
to use at all time.
(1) To properly store fire pump, place in a level and dry area. High humidity
will cause corrosion of steel and iron parts.
(2) Keep fire pump free of dust, dirt, spilled oil, spilled fuel, etc.
(3) Fuel tank should be stored full with fuel.
(4) Governor case must be filled with oil to proper level.
(5) Operate the pump at least once a month.
(6) Be sure to check the battery once a month. Add distilled water if the
level is lower than the specified level and charge the battery.
(7) If fire pump is to be stored for more than one month, drain fuel from carburetor chamber completely.
(8) Replace spark plug when the plug is dirty or worn.
NGK B7HS…Gap 0.6∼0.7mm
(9) Replace V-belt for vacuum pump when the V-belt is cracked or worn.
………………Contact your dealer.
(10) Close the suction port with the cap not to enter a foreign material.
- 23 -
PERIODICAL INSPECTION
Inspection item
Inspection time or
period
Inspection point
Fuel
After each running
Vacuum pump
Every month
Lamps, etc.
After each running
Every 50 hours, or
every 3 months
Fuel in tank
Fouling of
strainer
Lighting up
Check with oil
gauge stick
Battery
Every month
Liquid level
Starter rope
Every month
Wear, damage
Spark plug
Every 50 hours, or
every month
Dirt, damage
and gap
Fouling of
strainer,
ingress of water.
Fuel leakage
from each pipe
and connection
Check for
performance
Governor oil
Fuel system
Pump
Discharge valve
V-belt
Every 50 hours, or
every month
Every 50–100
hours, or every year
Every 50–100
hours, or every year
Every 100 hours, or
every year
Vacuum leakage
Countermeasure
Remarks
Perform periodical inspections and maintenance according to the following
procedures. See table below.
Supply.
Clean.
Replace.
Replace if
necessary.
Supply and charge if
necessary.
Replace.＊
Clean, correct or
replace.
Replace.＊
Replace.＊
Replace if
necessary.
Replace if
necessary.
Wear, crack
Replace.＊
○
○
Compression
pressure
Every 100 hours, or
every year
Standard
compression
pressure
Replace if
necessary.
○
All parts
Every 300 hours, or
every 3 years
Overhaul
Replace if
necessary.
○
NOTES:
1) Contact your dealer for items marked with an “ ○” or “ ＊”. Your dealer
will be able to perform these procedures.
2) Inspection time or period is to be referred based on reaching earlier.
- 24 -
TROUBLE SHOOTING
1. Hard starting
Electrical system
(1) Worn or dirty spark plug.: Replace.
(2) Power cord disconnected.: Properly connected.
(3) Short circuit of the wires.: Repair.
(4) Low voltage, low electrolyte in battery.: Service and charge battery.
(Model S)
(5) Loose, contaminated battery connections.: Clean and tighten.
(Model S)
(6) Blown fuse: Use 5A accessary fuse. (Model S)
Fuel system
(1) Debris blocking fuel hose, or fuel cock.: Clean.
(2) Fuel tank vent clogged: Clean.
Compression
(1) If low compression is found, contact your dealer for complete
inspection.
2. Poor Water Suction
(1) Vacuum leak on suction side. Check seals, gaskets, adapter fit and
hose condition.
(2) Drain cock must be closed.
(3) Poor vacuum pump performance: Check clog of strainer.
(4) Check slack or crack of vacuum gauge pipe and vacuum pipe.
(5) Damaged mechanical seal: Contact your dealer for repair.
3. Discharge Pressure drop
(1) Check suction hose for fouling of strainer, vacuum leak, seals, gaskets
and hose condition.
(2) Check pump for obstruction.
(3) Discharge nozzle bore, no nozzle: Check pumping plate installation,
nozzle bore for high pressure is 15.5mm, for low pressure 21mm. For
discharging without nozzle, pumping plate must be installed in
discharge adapter.
- 25 -
TOOLS AND ACCESSORIES
Description
Q’ty
Remarks
Owner’s manual
1
Tool bag
1
Tools
1
Crown spanner 21mm
1
Handle for spanner
Spark plug
1
NGK B7HS
Pilot bulb
1
12V–3.4W
Pumping plate
1
＊Battery charger
1
12V
＊Fuse
1
5A
Fuel mixer
1
＊Only for Model S
- 26 -
Consent
Plug
PTC-heater
Stop Switch cord
Stop Switch
- 27 Controller buzzer
Flood light (option)
Buzzer
Lamp
Ignition coil
Pilot lamp
cord
Lamp
CDI unit
Magneto
Control panel
Oil level sensor
Control panel
Ground cord
Spark plug
B: Black
Br: Brown
G: Green
P: Pink
R: Red
W: White
Y : Yellow
R/W: Red/White
B/W: Black/White
B/Y: Black/Yellow
G/W: Green/White
Colour of Cord
WIRING DIAGRAM
■V25A V20E
WIRING DIAGRAM for Model M
Lamp
- 28 Flood light (option)
PTC-heater
Lamp
Control Panel
Magneto
Plug
Ignition coil
Controller buzzer
Buzzer
CDI unit
Starter solenoid
Fuse Box
Consent
Main Switch
Oil level sensor
Spark plug
Starter motor
Battery
Flood light
(Option)
B: Black
G: Green
P: Pink
R: Red
W: White
Y : Yellow
R/W: Red/White
B/W: Black/White
B/Y: Black/Yellow
G/W: Green/White
Colour of Cord
■V25AS V20ES
WIRING DIAGRAM for Model M
- 29 Socket
Rectifier
PTC-heater
Plug (Option)
Stop switch
Flood light
Projector
(Option)
lamp
Magneto
CD unit
Control panel
Ignition coil
lamp
B Black
Br Brown
G Green
P Pink
R Red
W White
Y Yellow
Colour of Cord
Spark plug
■V20D2
WIRING DIAGRAM for Model M
lamp
PTC-heater
lamp
Rectifier
Control panel
- 30 Magneto
CD Unit
Ignition
coil
Plug (Option)
Starter solenoid
Fuse
Socket
Main switch
Starter Spark plug
motor
Battery
Flood light
Projector
(Option)
B Black
Br Brown
G Green
P Pink
R Red
W White
Y Yellow
Colour of Cord
■V20D2S
WIRING DIAGRAM for Model S
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