WT30X
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Owner,s Manual
WATER PUMP
WT20X・WT30X・WT40X
C
2002-2009 Honda Motor Co., Ltd. -All Rights Reserved
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
Keep this owner’s manual handy, so you can refer to it at any time.
This owner’s manual is considered a permanent part of the water
pump and should remain with the water pump if resold.
The information and specifications included in this publication were in
effect at the time of approval for printing. Honda Motor Co., Ltd.
reserves the right, however, to discontinue or change specifications or
design at any time without notice and without incurring any obligation
whatever. No part of this publication may be reproduced without
written permission.
INTRODUCTION
Congratulations on your selection of a Honda water pump. We are
certain you will be pleased with your purchase of one of the finest
water pumps on the market.
We want to help you get the best results from your new water pump
and to operate it safely. This manual contains the information on how
to do that; please read it carefully.
As you read this manual, you will find information preceded by a
symbol. That information is intended to help you avoid
damage to your water pump, other property, or the environment.
We suggest you read the warranty policy to fully understand its
coverage and your responsibilities of ownership. The warranty policy
is a separate document that should have been given to you by your
dealer.
When your water pump needs scheduled maintenance, keep in mind
that your Honda servicing dealer is specially trained in servicing
Honda water pumps. Your Honda servicing dealer is dedicated to your
satisfaction and will be pleased to answer your questions and
concerns.
Best Wishes,
Honda Motor Co., Ltd.
1
INTRODUCTION
A FEW WORDS ABOUT SAFETY
Your safety and the safety of others are very important. And using this
water pump safely is an important responsibility.
To help you make informed decisions about safety, we have provided
operating procedures and other information on labels and in this
manual. This information alerts you to potential hazards that could
hurt you or others.
Of course, it is not practical or possible to warn you about all the
hazards associated with operating or maintaining a water pump. You
must use your own good judgment.
You will find important safety information in a variety of forms,
including:
Safety Labels
Safety Messages
of three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
Safety Headings
Safety Section
Instructions
This entire book is filled with important safety information –– please
read it carefully.
–– on the pump.
–– preceded by a safety alert symbol and one
You WILL be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
You CAN be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
You CAN be HURT if you don’t follow
instructions.
–– such as
–– such as
–– how to use this pump correctly and safely.
IMPORTANT SAFETY INFORMATION
PUMP SAFETY
.
.
2
CONTENTS
..........................................................................................PUMP SAFETY . 5
..........................................................................................CONTROLS . 10
.....................................................................................Choke Lever . 10
...........................................................................................FEATURES . 11
System . 11
................................................IMPORTANT SAFETY INFORMATION . 5
................................................................SAFETY LABEL LOCATIONS . 7
........................................................................CONTROLS & FEATURES . 9
............................................COMPONENT & CONTROL LOCATIONS . 9
..............................................................................Fuel Valve Lever . 10
.................................................................................Ignition Switch . 10
..................................................................................Throttle Lever . 11
...........................................................................Recoil Starter Grip . 11
.............................................................................Oil Alert
.............................................................................BEFORE OPERATION . 12
...............................................ARE YOU READY TO GET STARTED? . 12
........................................................IS YOUR PUMP READY TO GO? . 13
....................................Check the General Condition of the Pump . 13
.......................................Check the Suction and Discharge Hoses . 14
.............................................................................Check the Engine . 14
............................................................................................OPERATION . 15
...................................................SAFE OPERATING PRECAUTIONS . 15
............................................................................PUMP PLACEMENT . 16
.......................................................SUCTION HOSE INSTALLATION . 17
..................................................DISCHARGE HOSE INSTALLATION . 18
...........................................................................PRIMING THE PUMP . 18
....................................................................STARTING THE ENGINE . 19
...................................................................SETTING ENGINE SPEED . 21
....................................................................STOPPING THE ENGINE . 22
.......................................................................SERVICING YOUR PUMP . 24
............................................THE IMPORTANCE OF MAINTENANCE . 24
....................................................................MAINTENANCE SAFETY . 25
..............................................................MAINTENANCE SCHEDULE . 26
..........................................................................................REFUELING . 27
.............................................................FUEL RECOMMENDATIONS . 28
................................................................ENGINE OIL LEVEL CHECK . 29
.........................................................................ENGINE OIL CHANGE . 30
3
CONTENTS
SERVICING YOUR PUMP (continued)
....................................................................AIR FILTER INSPECTION . 32
.......................................................................AIR FILTER CLEANING . 33
...............................................................SEDIMENT CUP CLEANING . 34
.......................................................................SPARK PLUG SERVICE . 35
................................................................PUMP CASING CLEANING . 39
................................................................................................STORAGE . 41
..................................................................STORAGE PREPARATION . 41
...........................................................................................Cleaning . 41
...................................................................................................Fuel . 42
.........................................................................................Engine Oil . 45
.................................................................STORAGE PRECAUTIONS . 45
..............................................................REMOVAL FROM STORAGE . 46
.....................................................................................TRANSPORTING . 47
................................................................................................ENGINE . 48
......................................................................Engine Will Not Start . 48
........................................................................Engine Lacks Power . 48
...................................................................................................PUMP . 49
.............................................................................No Pump Output . 49
...........................................................................Low Pump Output . 49
..................................................ENGINE OIL RECOMMENDATIONS . 31
...............................SPARK ARRESTER SERVICE (applicable types) . 37
.....................................TAKING CARE OF UNEXPECTED PROBLEMS . 48
4
........................................TECHNICAL & CONSUMER INFORMATION . 50
...............................................................TECHNICAL INFORMATION . 50
..................................................................Serial Number Location . 50
..................Carburetor Modification for High Altitude Operation . 51
..........................................Emission Control System Information . 52
..................................................................................Specifications . 54
..............................................................CONSUMER INFORMATION . 57
.........................................................................Honda Publications . 57
.......................................................Customer Service Information . 58
...........................QUICK REFERENCE INFORMATION . Inside back cover
PUMP SAFETY
IMPORTANT SAFETY INFORMATION
Honda WT20X, WT30X, and WT40X pumps are designed to pump only
fresh water that is not intended for human consumption, and other
uses can result in injury to the operator or damage to the pump and
other property.
Most accidents can be prevented if you follow all instructions in this
manual and on the pump. The most common hazards are discussed
below, along with the best way to protect yourself and others.
Operator Responsibility
It is the operator’s responsibility to provide the necessary safeguards
to protect people and property. Know how to stop the pump quickly in
case of emergency. If you leave the pump for any reason, always turn
the engine off. Understand the use of all controls and connections.
Be sure that anyone who operates the pump receives proper
instruction. Do not let children operate the pump. Keep children and
pets away from the area of operation.
Pump Operation
Pump only water that is not intended for human consumption.
Pumping flammable liquids, such as gasoline or fuel oils, can result in
a fire or explosion, causing serious injury. Pumping sea water,
beverages, acids, chemical solutions, or any other liquid that
promotes corrosion can damage the pump.
Refuel With Care
Gasoline is extremely flammable, and gasoline vapor can explode.
Refuel outdoors, in a well-ventilated area, with the engine stopped and
the pump on a level surface. Do not fill the fuel tank above the fuel
strainer shoulder. Never smoke near gasoline, and keep other flames
and sparks away. Always store gasoline in an approved container.
Make sure that any spilled fuel has been wiped up before starting the
engine.
5
PUMP SAFETY
Hot Exhaust
The muffler becomes very hot during operation and remains hot for a
while after stopping the engine. Be careful not to touch the muffler
while it is hot. Let the engine cool before transporting the pump or
storing it indoors.
To prevent fire hazards, keep the pump at least 3 feet (1 meter) away
from building walls and other equipment during operation. Do not
place flammable objects close to the engine.
Carbon Monoxide Hazard
Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of
exhaust gas. Never run the engine in a closed garage or confined area.
6
PUMP SAFETY
SAFETY LABEL LOCATIONS
The labels shown here contain important safety information. Please
read them carefully. These labels are considered permanent parts of
your pump. If a label comes off or becomes hard to read, contact an
authorized Honda servicing dealer for a replacement.
WT20X
PUMP CAUTION LABEL
7
PUMP SAFETY
WT30X · WT40X
8
PUMP CAUTION LABEL
CONTROLS & FEATURES
COMPONENT & CONTROL LOCATIONS
WT20X
＜＞
AIR CLEANER
THROTTLE LEVER
CHOKE LEVER
FUEL VALVE LEVER
FUEL FILLER CAP
PRIMING WATER FILLER CAP
OIL FILLER CAP/DIPSTICK
STARTER GRIP
PRIMING WATER FILLER CAP
IGNITION SWITCH
DISCHARGE PORT
WRENCH
CASE DRAIN PLUG
PUMP DRAIN PLUG
MUFFLER
SUCTION PORT
STRAINER
9
CONTROLS & FEATURES
CONTROLS
Fuel Valve Lever
The fuel valve opens and closes
the connection between the fuel
tank and the carburetor.
The fuel valve lever must be in the
ON position for the engine to run.
When the engine is not in use,
leave the fuel valve lever in the
OFF position to prevent
carburetor flooding and to reduce
the possibility of fuel leakage.
Ignition Switch
The ignition switch controls the
ignition system.
The ignition switch must be in the
ON position for the engine to run.
Turning the ignition switch to the
OFF position stops the engine.
FUEL VALVE LEVER
OOFFFF
ON
IGNITION SWITCH
ON
OOFFFF
Choke Lever
The choke lever opens and closes
the choke valve in the carburetor.
The CLOSED position enriches
the fuel mixture for starting a cold
engine.
The OPEN position provides the
correct fuel mixture for operation
after starting, and for restarting a
warm engine.
10
CHOKE LEVER
CCLLOOSSEEDD
OOPPEENN
Throttle Lever
CONTROLS & FEATURES
The throttle lever controls engine
speed.
Moving the throttle lever in the
directions shown makes the
engine run faster or slower.
Pump output is controlled by
adjusting the throttle lever. At
maximum throttle position, the
pump will deliver the highest
output volume. Moving the
throttle lever toward the idle
position will decrease the output
volume of the pump.
Recoil Starter Grip
Pulling the starter grip operates
the recoil starter to crank the
engine for starting.
THROTTLE LEVER
FFAASSTT
SLOW
CHOKE LEVER
FEATURES
Oil Alert
System
The Oil Alert system is designed to prevent engine damage caused by
an insufficient amount of oil in the crankcase. Before the oil level in the
crankcase can fall below a safe limit, the Oil Alert system will
automatically stop the engine (the ignition switch will remain in the
ON position).
If the engine stops and will not restart, check the engine oil level (page
) before troubleshooting in other areas.29
11
BEFORE OPERATION
ARE YOU READY TO GET STARTED?
Your safety is your responsibility. A little time spent in preparation will
significantly reduce your risk of injury.
Knowledge
Read and understand this manual. Know what the controls do and
how to operate them.
Familiarize yourself with the pump and its operation before you begin
pumping. Know what to do in case of emergencies.
Be sure of what you are pumping. This pump is designed to pump
only fresh water that is not intended for human consumption.
12
BEFORE OPERATION
IS YOUR PUMP READY TO GO?
For your safety, and to maximize the service life of your equipment, it
is very important to take a few moments before you operate the pump
to check its condition. Be sure to take care of any problem you find, or
have your servicing dealer correct it, before you operate the pump.
Improperly maintaining this pump,
or failing to correct a problem
before operation, could cause a
malfunction in which you could be
seriously injured.
Always perform a preoperation
inspection before each operation,
and correct any problem.
Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of
exhaust gas. Never run the engine in a closed garage or confined area.
To prevent fire hazards, keep the pump at least 3 feet (1 meter) away
from building walls and other equipment during operation. Do not
place flammable objects close to the engine.
Before beginning your preoperation checks, be sure the pump is on a
level surface and the ignition switch is in the OFF position.
Check the General Condition of the Pump
Look around and underneath the pump for signs of oil or gasoline
leaks.
Remove any excessive dirt or debris, especially around the engine
muffler, and recoil starter.
Look for signs of damage.
Check that all nuts, bolts, screws, hose connectors and clamps are
tightened.
13
BEFORE OPERATION
Check the Suction and Discharge Hoses
Check the general condition of the hoses. Be sure the hoses are in
serviceable condition before connecting them to the pump.
Remember that the suction hose must be reinforced construction to
prevent hose collapse.
Check that the sealing washer in the suction hose connector is in
good condition (see page ).
Check that the hose connectors and clamps are securely installed
(see pages and ).
Check that the strainer is in good condition and is installed on the
suction hose (see page ).
Check the Engine
17
18
17
17
Check the oil level (see page ). To avoid the inconvenience of an
unexpected shutdown by the Oil Alert system, always check the
engine oil level before startup.
Check the air filter (see page ). A dirty air filter will restrict air flow
to the carburetor, reducing engine and pump performance.
Check the fuel level (see page ). Starting with a full tank will help
to eliminate or reduce operating interruptions for refueling.
29
32
27
14
OPERATION
SAFE OPERATING PRECAUTIONS
To safely realize the full potential of this pump, you need a complete
understanding of its operation and a certain amount of practice with
its controls.
Before operating the pump for the first time, please review the
IMPORTANT SAFETY INFORMATION
BEFORE OPERATION
For your safety, avoid starting or operating the engine in an enclosed
area, such as a garage. Your engine’s exhaust contains poisonous
carbon monoxide gas which can collect rapidly in an enclosed area
and cause illness or death.
Pump only fresh water that is not intended for human consumption.
Pumping flammable liquids, such as gasoline or fuel oils, can result in
a fire or explosion, causing serious injury. Pumping sea water,
beverages, acids, chemical solutions, or any other liquid that
promotes corrosion can damage the pump.
.
on page and the chapter titled
5
15
OPERATION
PUMP PLACEMENT
For best pump performance, place the pump near the water level, and
use hoses that are no longer than necessary. That will enable the
pump to produce the greatest output with the least self-priming time.
As
head
length, type, and size of the suction and discharge hoses can also
significantly affect pump output.
Discharge head capability is always greater than suction head
capability, so it is important for suction head to be the shorter part of
total head.
Minimizing suction head (placing the pump near the water level) is
also very important for reducing self-priming time. Self-priming time
is the time it takes the pump to bring water the distance of the suction
head during initial operation.
(pumping height) increases, pump output decreases. The
16
DISCHARGE
HEAD
SUCTION
HEAD
TTOOTTAALL HHEEAADD
OPERATION
SUCTION HOSE INSTALLATION
Use the commercially available hose and hose connector with the
hose clamp provided with the pump. The suction hose must be
reinforced with a noncollapsible wall or braided wire construction.
The suction hose should be no longer than necessary. Pump
performance is best when the pump is near the water level, and the
hoses are short.
Use a hose clamp to securely fasten the hose connector to the suction
hose in order to prevent air leakage and loss of suction. Verify that the
hose connector sealing washer is in good condition.
Install the strainer (provided with the pump) on the other end of the
suction hose, and secure it with a hose clamp. The strainer will help to
prevent the pump from becoming clogged or damaged by debris.
Securely tighten the hose connector on the pump suction port.
HOSE CONNECTOR
SUCTION PORT
HHOOSSEE CCOONNNNEECCTTOORR
SUCTION HOSE
HOSE CLAMP
SEALING WASHER (commercially available)
HOSE COUPLER (commercially available)
HOSE CLAMP RING
SUCTION HOSE
(commercially
available)
HOSE CLAMP
STRAINER
HOSE CLAMP
SUCTION
HOSE
17
OPERATION
DISCHARGE HOSE INSTALLATION
Use a commercially available
DISCHARGE HOSE
HOSE CONNECTOR
hose and hose connector, and
clamp provided with the pump.
It is best to use a short, largediameter hose, because that will
reduce fluid friction and improve
pump performance. A long or
small-diameter hose will increase
fluid friction and reduce pump
output.
Tighten the hose clamp securely
to prevent the discharge hose
HOSE CLAMP
from disconnecting under high
pressure.
PRIMING THE PUMP
Before starting the engine, remove the filler cap from the pump
chamber, and completely fill the pump chamber with water. Reinstall
the filler cap, and tighten it securely.
Priming water capacity:
WT20X:
WT30X, WT40X:
3.70 US gal (14.0 , 3.08 Imp gal)
3.96 US gal (15.0
, 3.30 Imp gal)
Operating the pump dry will destroy the pump seal. If the pump has
been operated dry, stop the engine immediately, and allow the pump
to cool before priming.
PRIMING WATER FILLER CAP
WATER
18
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