HONDA WH15X User Manual

Owner’s Manual

Black

DIC F101

WATER PUMP

WH15X/WH20X

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.

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

–– how to use this pump correctly and safely.

IMPORTANT SAFETY INFORMATION

PUMP SAFETY

..........................................................................................PUMP SAFETY . 5

CONTROLS

............................................................................................CONTROLS . 9

.....................................................................................Choke Lever . 10

............................................................................................OPERATION . 15

................................................IMPORTANT SAFETY INFORMATION . 5

................................................................SAFETY LABEL LOCATIONS . 7

............................................COMPONENT & CONTROL LOCATIONS . 8

................................................................................Fuel Valve Lever . 9

...................................................................................Ignition Switch . 9

..................................................................................Throttle Lever . 10

...........................................................................Recoil Starter Grip . 11

.............................................................................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

...................................................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

..................................................ENGINE OIL RECOMMENDATIONS . 31

CONTENTS

SERVICING YOUR PUMP (continued)

....................................................................AIR FILTER INSPECTION . 32

.......................................................................AIR FILTER CLEANING . 33

...............................................................SEDIMENT CUP CLEANING . 34

.......................................................................SPARK PLUG SERVICE . 35

...............................................................IDLE SPEED ADJUSTMENT . 37

................................................................................................STORAGE . 39

..................................................................STORAGE PREPARATION . 39

...........................................................................................Cleaning . 39

...................................................................................................Fuel . 40

.........................................................................................Engine Oil . 43

.................................................................STORAGE PRECAUTIONS . 43

..............................................................REMOVAL FROM STORAGE . 44

.....................................................................................TRANSPORTING . 45

................................................................................................ENGINE . 46

......................................................................Engine Will Not Start . 46

........................................................................Engine Lacks Power . 46

...................................................................................................PUMP . 47

.............................................................................No Pump Output . 47

...........................................................................Low Pump Output . 47

.........................SPARK ARRESTER SERVICE (optional equipment) . 38

.....................................TAKING CARE OF UNEXPECTED PROBLEMS . 46

........................................TECHNICAL & CONSUMER INFORMATION . 48

...............................................................TECHNICAL INFORMATION . 48

..................................................................Serial Number Location . 48

..................Carburetor Modification for High Altitude Operation . 49

..........................................Emission Control System Information . 50

...........................................................................................Air Index . 52

..................................................................................Specifications . 53

..............................................................CONSUMER INFORMATION . 57

.........................................................................Honda Publications . 57

.......................................................Customer Service Information . 58

...........................QUICK REFERENCE INFORMATION . Inside back cover

PUMP SAFETY

IMPORTANT SAFETY INFORMATION

Honda WH15X and WH20X pumps are designed to pump only 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.

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.

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.

PUMP CAUTION LABEL

CONTROLS

COMPONENT & CONTROL LOCATIONS

WH20X

＜＞

FUEL FILLER CAPCARRYING HANDLE

MUFFLER

FUEL VALVE LEVER

IGNITION SWITCH

AIR CLEANER

THROTTLE LEVER

CHOKE LEVER

STARTER GRIP

OIL DRAIN PLUG

PRIMING WATER FILLER CAP

DISCHARGE PORT

SUCTION PORT

OIL FILLER CAP/DIPSTICK

STRAINER

PUMP DRAIN PLUG

CONTROLS

Fuel Valve Lever

CONTROLS

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

OFF

IGNITION SWITCH

OOFFFF

CONTROLS

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.

Throttle Lever

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.

CCLLOOSSEEDD

THROTTLE LEVER

CHOKE LEVER

OPEN

SLOW

FAST

CONTROLS

Recoil Starter Grip

Pulling the starter grip operates the recoil starter to crank the engine for starting.

STARTER GRIP

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.

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.

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

Check the engine oil level (see page ). Running the engine with a low oil level can cause engine damage.

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.

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

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.

head

Maximum head specifications and pump performance curves are shown in the tables on pages and . The 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.

55 57

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.

SUCTION PORT

HOSE CONNECTOR (commercially available)

HOSE CONNECTOR

HOSE CLAMP

SEALING WASHER

SUCTION HOSE

HOSE COUPLER

HOSE CLAMP RING (commercially available)

HOSE CLAMP

SUCTION HOSE (commercially available)

STRAINER

HOSE CLAMP

OPERATION

DISCHARGE HOSE INSTALLATION

Use a commercially available hose and hose connector, and clamp provided with the pump.

DISCHARGE HOSE (commercially available)

HOSE CONNECTOR (commercially available)

It is best to use a short, large-diameter hose, because that will reduce fluid friction and improve pump output. A long or smalldiameter hose will increase fluid friction and reduce pump output.

Tighten the hose clamp securely to prevent the discharge hose from disconnecting under high

HOSE CLAMP

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.

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

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