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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 autho-
rized 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.
F a i l u r e t o o b s e r v e c o u l d r e s u l t i n s e v e r e 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.
WARNING
CAUTION
Note
CONTENTS
SPECIFICATION 1
MAIN COMPONENTS 4
LABELS 5
OPERATING PRECAUTIONS 6
PREPARATION FOR OPERATION .8
OPERATING PROCEDURES 12
WATER SUCTION AND DISCHARGE 14
STOPPING 16
PRECAUTIONS AFTER OPERATION 17
COLD WEATHER PRECAUTIONS .19
USING ACCESSORIES 20
MAINTENANCE AND INSPECTION 23
PERIODICAL INSPECTION 24
TROUBLE SHOOTING 25
TOOLS AND ACCESSORIES 26
WIRING DIAGRAM 27
- 1 -
SPECIFICATIONS
V25A V25AS
Length & Width & Height Approx. 560×475×530 mm (22.0×18.7×20.9 in.)
Ove
rall
dim
ensi
ons
and
mas
s
Mass Approx. 37 kg( 82 lb.) Approx. 43 kg( 95lb.)
Type 2-cycle, single vertical cylinder, air-cooled gasoline engine
Bore & stroke & nos. of cylinder 66×58 mm (2.60×2.28 in.) ×1
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 Starter motor and manual Floodlight projector * 12V-35W
Eng
ine
Battery capacity - 12V-14Ah/10Hr Type Single suction, single stage, turbine pump Discharge valve type Ball valve Discharge port coupling & Suction port coupling
2-1/2” (mail British Standard Pipe Thread)
at 0.55MPa (72.5ibs/in2) 650ℓ/min. (172US gals. /min.)
Discharge volume
at 0.8MPa (101.5ibs/in2) 400ℓ/min. (106US gals. /min.)
Pum
p
Maximum suction height Approx. 9 m (29.5 ft.)
*: Option
- 2 -
V20D2 V20D2S
Length & Width & Height Approx. 555×470×532 mm (21.9×18.5×20.9 in.)
Ove
rall
dim
ensi
ons
and
mas
s
Mass Approx. 36 kg ( 79 lb.)
Approx. 42 kg ( 93lb.)
Type 2-cycle, single vertical cylinder, air-cooled gasoline engine
Bore & stroke & nos. of cylinder 66×58 mm (2.60×2.28 in.) ×1
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 Starter motor and manualFloodlight projector * 12V-35W
Eng
ine
Battery capacity - 12V-14Ah/10Hr Type Single suction, single stage, turbine pump Discharge valve type Standard valve Discharge port coupling & Suction port coupling
JIS-B-9912 dimensions of screwed type coupling for fire hose 2-1/2” (φ82.5, 5 threads per inch, thread angle 55°)
at 0.5MPa (72.5ibs/in2) 650ℓ/min. (172US gals. /min.)
Discharge volume
at 0.7MPa (101.5ibs/in2) 400ℓ/min. (106US gals. /min.)
Pum
p
Maximum Suction height Approx. 9 m (29.5 ft.)
*: Option
- 3 -
V20E V20ES
Length & Width & Height Approx. 515×470×532 mm (20.3×18.5×20.9 in.)
Ove
rall
dim
ensi
ons
and
mas
s
Mass Approx. 40 kg ( 88 lb.)
Approx. 46 kg ( 101 lb.)
Type 2-cycle, single vertical cylinder, air-cooled gasoline engine
Bore & stroke & nos. of cylinder 66×58 mm (2.60×2.28 in.) ×1
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 Starter motor and manualFloodlight projector * 12V-35W
Eng
ine
Battery capacity - 12V-14Ah/10Hr Type Single suction, single stage, turbine pump Discharge valve type Ball valve Discharge port coupling & Suction port coupling
2-1/2” (mail British Standard Pipe Thread)
at 0.5MPa (72.5ibs/in2) 650ℓ/min. (172US gals. /min.)
Discharge volume
at 0.7MPa (101.5ibs/in2) 400ℓ/min. (106US gals. /min.)
Pum
p
Maximum suction height Approx. 9 m (29.5 ft.)
*: Option
- 4 -
MAIN COMPONENTS
Discharge valve handle
Pressure gauge (Compound pressure gauge)
Carrying handle
Throttle dial
Recoil starter handle
Fuel cock
Fuel drain pot
Fuel drain knob
*Main switch ☆Stop switch
Carburetor
*Fuse
Socket
Vacuum gauge (Compound pressure gauge)
Suction lever
Fuel tank cap
Fuel gauge
Fuel tank
Vacuum pump
Strainer cap for Vacuum pump
Discharge port adaptor (opt)
Suction port cap
Drain cock
Vacuum pump drain pipe
Remarks *:Only for Model S ☆:Only for Model M
Spark plug cap
Govrner oil gauge
*Battery
Muffler
- 5 -
LABELS
DANGER, WARNING & CAUTION
CE LABEL CE label
Muffler caution label
Fuel danger label Exhaust gas warning label
Instruction label
Spark plug & High voltage caution label
- 6 -
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.
- 7 -
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 emer- gency 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 dis- charge 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 com- bustible liquids, chemicals or caustic liquids with this fire pump.
- 8 -
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 mini- mum 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.
Gasoline
- 9 -
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.
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.
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.
UPPER LEVEL
LOWER LEVEL
Engine oil
- 10 -
(2) Governor case oil
Before using fire pump, check gover- nor 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.
Note: (1) Use of low-quality gasoline results in a short engine life as well as start-
ing 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.
Oil gauge
Upper level Lower level
- 11 -
(3) Discharge valve and pump case water drain cock Make sure the discharge valve and drain cock are closed.
(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.
CloseDrain cock
Close Open
V25A(S) V20E(S)
OpenClose
V20D2(S)
- 12 -
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:
(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.
(2) Set the throttle dial at the “SUCTION•START”
position.
CAUTION Wear proper hearing protection during operation.
Auto choke carburetor
- 13 -
(3) Starting engine Recoil Starter type Engage the starter ratchet by
pulling the starter handle slowly to- wards 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.
Note: 1. Extended operation of the starter motor will run the battery down. Operate the starter motor for maximum 5 seconds. If the engine does not start, wait for 10 seconds before op-
erating 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 co-
nnections are tight and the battery is fully charged.
Remark: If electric starter will not start to work, use recoil starter.
Main switch
OFF-ON-START
Main switch
OFF-ON-START
- 14 -
WATER SUCTION AND DISCHARGE (1) Lift the suction lever up. ○Lifting the suction lever up will put
tension on the “V” belt leading vacu- um pump to operate for water suc- tion.
(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.
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.
Suction lever
Drain pipe
- 15 -
(3) Open the discharge valve by turning the handle to the left (counter clock- wise).
○Before opening water discharge valve,
be sure to warn the person holding the branch pipe.
○The discharge port can be turned ap-
proximately 90 degrees towards the muffler side.
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 suc- tion 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.
Open
Pressure gauge
Throttle dial
V25A(S) V20E(S)
Open
V20D2(S)
- 16 -
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.
V25A(S) V20E(S)
Close
Main switch
OFF-ON-START STOP SWITCH
Close Open
Close
V20D2(S)
- 17 -
PRECAUTIONS AFTER OPERATION (1) After operation, drain the pump by open-
ing the drain cock. When draining is fin- ished, 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 water, etc.)
(3) Rubber gaskets, O rings, seals for the de- livery and suction hose fittings wear: Worn rubber seals will cause water leaks, poor vacuum, etc. Frequent inspec- tion 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.
CloseOpen
- 18 -
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 cham- ber.
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.
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.
Drain valveKnob
Open←→Close
The pot must be emptiedeach time.
Check the hose is secured to the drain pot.
Drain pot
Strainer Cap
- 19 -
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 bat- tery electrolyte specific gravity will lead to possible freezing of the elec- trolyte. 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.
- 20 -
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 sulfu-
ric 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”.
Remarks: This is an Automatic battery charger. Just leave the battery in charging con- dition even when the battery has been nearly charged fully, since the char- ging 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-
Input plug
Power lamp
Breaker
Power switch
Consent
Charging plug
- 21 -
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 spe- cific gravity with a hydrometer. The specific gravity should be 1.28 in the fully charge condition (at ambient tem- perature of 20℃(68°F)).
• To keep surfaces of the battery, clean at all times.
• 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 bat- tery are also capable of causing severe burns to skin and damage to clothing.
UPPER LEVEL LOWER LEVEL
1.200
1.28 1.300
- 22 -
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
- 23 -
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 car-
buretor 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.
- 24 -
PERIODICAL INSPECTION Perform periodical inspections and maintenance according to the following procedures. See table below.
Inspection item Inspection time or period Inspection point Countermeasure
Rema
rks
Fuel After each running Fuel in tank Supply.
Vacuum pump Every month Fouling of strainer Clean.
Lamps, etc. After each running Lighting up Replace.
Governor oil Every 50 hours, or every 3 months
Check with oil gauge stick
Replace if necessary.
Battery Every month Liquid level Supply and charge if necessary.
Starter rope Every month Wear, damage Replace.*
Spark plug Every 50 hours, or every month
Dirt, damage and gap
Clean, correct or replace.
Fuel system Every 50 hours, or every month
Fouling of strainer, ingress of water. Fuel leakage from each pipe and connection
Replace.* Replace.*
Pump Every 50–100 hours, or every year
Check for performance
Replace if necessary.
○
Discharge valve Every 50–100 hours, or every year Vacuum leakage
Replace if necessary.
○
V-belt Every 100 hours, or every year 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.
- 25 -
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.
- 26 -
TOOLS AND ACCESSORIES
Description Q’ty Remarks
Owner’s manual
Tool bag
Tools
Spark plug
Pilot bulb
Pumping plate
*Battery charger
*Fuse
Fuel mixer
1
1
1
1
1
1
1
1
1
1
Crown spanner 21mm
Handle for spanner
NGK B7HS
12V–3.4W
12V
5A
*Only for Model S
- 27 -
WIRING DIAGRAM ■V25A V20E WIRING DIAGRAM for Model M
Col
our o
f Cor
d B
: Bla
ck
Br:
Bro
wn
G: G
reen
P
: Pin
k R
: Red
W
: Whi
te
Y : Y
ello
w
R/W
: Red
/Whi
te
B/W
: Bla
ck/W
hite
B
/Y: B
lack
/Yel
low
G
/W: G
reen
/Whi
te
Spar
k pl
ug
Con
trol p
anel
Oil
leve
l sen
sor
Igni
tion
coil
Con
trol p
anel
G
roun
d co
rd
Pilo
t lam
p co
rd
Lam
p
Lam
p
Con
trolle
r buz
zer
Floo
d lig
ht (o
ptio
n)
Plu
g C
onse
nt
Stop
Sw
itch
Stop
Sw
itch
cord
PTC
-hea
ter
CD
I uni
t C
DI u
nit
Mag
neto
Buz
zer
- 28 -
■V25AS V20ES WIRING DIAGRAM for Model M
Floo
d lig
ht
(Opt
ion)
Col
our o
f Cor
d B
: Bla
ck
G: G
reen
P
: Pin
k R
: Red
W
: Whi
te
Y : Y
ello
w
R/W
: Red
/Whi
te
B/W
: Bla
ck/W
hite
B
/Y: B
lack
/Yel
low
G
/W: G
reen
/Whi
te
Plu
g
Bat
tery
Star
ter m
otor
Spar
k pl
ug
Igni
tion
coil
Oil
leve
l sen
sor
CD
I uni
t
Floo
d lig
ht (o
ptio
n)
Mai
n S
witc
h
PTC
-hea
ter
Buz
zer
Con
trolle
r buz
zer
Mag
neto
Star
ter s
olen
oid
Fuse
Box
Con
sent
Lam
p
Lam
p
Con
trol P
anel
- 29 -
■V20D2 WIRING DIAGRAM for Model M
Spar
k pl
ug
Col
our o
f Cor
d B
Bla
ck
Br B
row
n G
Gre
en
P P
ink
R R
ed
W W
hite
Y
Yello
w
Igni
tion
coil
lam
p la
mp
Con
trol p
anel
CD
uni
t
Mag
neto
Floo
d lig
ht
Pro
ject
or
(Opt
ion)
Plu
g (O
ptio
n)
Stop
sw
itch
PTC
-hea
ter Rec
tifie
r
Soc
ket
- 30 -
■V20D2S WIRING DIAGRAM for Model S C
olou
r of C
ord
B B
lack
B
r Bro
wn
G G
reen
P
Pin
k R
Red
W
Whi
te
Y Ye
llow
Plu
g (O
ptio
n)
Floo
d lig
ht
Pro
ject
or
(Opt
ion)
Bat
tery
Spar
k pl
ug
Star
ter
mot
o r
Igni
tion
coil
Mai
n sw
itch
Soc
ket
Fuse
Star
ter s
olen
oid
CD
Uni
t
Mag
neto
Rec
tifie
r
Con
trol p
anel
lam
p la
mp
PTC
-hea
ter