Honda WMP20X Owner's Manual
INTRODUCTION
Congratulations on your selection of a Honda multi-purpose pump!
We are certain you will be pleased with your purchase of one of the
finest pumps on the market.
We want to help you get the best results from your new pump and to
operate it safely. This manual contains the information on how to do
that; please read it carefully.
We suggest you read the DISTRIBUTOR’S LIMITED WARRANTY
(page 18) and EMISSION CONTROL SYSTEM WARRANTY
(page 19) to fully understand coverage and your responsibilities of
ownership.
When your pump needs scheduled maintenance, keep in mind that an
authorized Honda servicing dealer is specially trained in servicing
Honda pumps and is supported by the parts and service divisions of
American Honda. Your Honda dealer is dedicated to your satisfaction
and will be pleased to answer your questions and concerns.
Keep this owner’s manual handy so that you can refer to it at any
time. This owner’s manual is considered a permanent part of the
pump and should remain with the pump if resold.
The information and specifications included in this publication were in
effect at the time of approval for printing. American Honda Motor Co.,
Inc. 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.
SAFETY MESSAGES
Your safety and the safety of others are very important. We have
provided important safety messages in this manual and on the pump.
This information alerts you to potential hazards that could hurt you or
others. Please read these messages carefully.
Of course, it is not practical or possible to warn you about all the
hazards associated with operating or maintaining a multi-purpose
pump. You must use your own good judgment.
You will find important safety information in a variety of forms:
• Safety Labels – on the pump.
• Instructions – how to use this pump correctly and safely.
• Safety Messages – preceded by a safety alert A symbol and one
of three signal words: DANGER, WARNING, or CAUTION. These
signal words mean:
B DANGER
B WARNING
B CAUTION
Each message tells you what the hazard is, what can happen, and
what you can do to avoid or reduce injury.
• Damage Prevention Messages – You will also see other
important messages that are preceded by the word NOTICE. This
word means:
NOTICE
© 1996–2011 American Honda Motor Co., Inc.—All Rights Reserved
31YE0628
00X31-YE0-6280
Your pump or other property can be damaged
if you don’t follow instructions.
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.
POM31YE0628
EM3
HPE.2011.05
PRINTED IN U.S.A.
OWNER’S MANUAL
WMP20X
B WARNING: B
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects, or
other reproductive harm.
CONTENTS
INTRODUCTION...............................1
SAFETY MESSAGES........................1
PUMP SAFETY .................................2
IMPORTANT SAFETY INFORMATION......2
SAFETY LABEL LOCATIONS .......2
ASSEMBLY .......................................3
CONTROL LOCATIONS ...................4
BEFORE OPERATION......................4
IS YOUR PUMP READY TO GO?..............4
OPERATION......................................5
SAFE OPERATING PRECAUTIONS..........5
APPROVED LIQUIDS....................6
PUMP PERFORMANCE................6
STARTING THE ENGINE ..............7
STOPPING THE ENGINE..............7
SERVICING YOUR PUMP................8
MAINTENANCE SAFETY ..............8
MAINTENANCE SCHEDULE.........8
REFUELING...................................9
ENGINE OIL...................................9
AIR CLEANER .............................10
SPARK PLUG ..............................11
SPARK ARRESTER
(OPTIONAL EQUIPMENT) ..........11
TRANSPORTING............................12
BEFORE LOADING .....................12
LOADING AND UNLOADING ......12
STORAGE.......................................12
STORAGE PREPARATION.........12
PLACING IN STORAGE ..............13
REMOVAL FROM STORAGE .....14
TAKING CARE OF UNEXPECTED
PROBLEMS ....................................14
TECHNICAL INFORMATION..........14
SERIAL NUMBER LOCATIONS..14
CARBURETOR
MODIFICATION FOR HIGH
ALTITUDE OPERATION..............15
EMISSION CONTROL SYSTEM .15
AIR INDEX...................................15
SPECIFICATIONS .......................16
CONSUMER INFORMATION .........17
REPLACEMENT PARTS,
OPTIONAL EQUIPMENT, AND
SERVICE ITEMS ......................... 17
DEALER LOCATOR INFORMATION .......17
CUSTOMER SERVICE
INFORMATION............................ 17
DISTRIBUTOR'S LIMITED
WARRANTY.................................18
EMISSION CONTROL SYSTEM
WARRANTY.................................19
1
PUMP SAFETY
This chapter explains what you need to know to operate your pump
safely.
IMPORTANT SAFETY INFORMATION
Most injuries or property damage 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.
Keep Shields in Place
Guards and shields are designed to protect you from being hurt by hot
or moving parts. For your safety and the safety of others, keep all
shields in place when the engine is running.
Wear Protective Clothing
Wearing protective clothing will reduce your risk of injury. Heavy-duty
gloves protect your hands. While the sound level of the pump is well
within safe limits, hearing protection will further protect your hearing.
Turn Engine Off When Not Pumping
If you need to leave the pump for any reason, always turn the engine
OFF.
Operator Responsibility
It is the operator's responsibility to provide the necessary safeguards
to protect people and property against chemical leakage. Refer to the
handling instructions provided by the manufacturer of the chemical
before operating the pump.
Know how to stop the pump quickly in case of emergency.
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, pets,
and bystanders away from the area of operation.
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 Hazards
Exhaust contains poisonous carbon monoxide, a colorless and
odorless gas. Breathing carbon monoxide can cause loss of
consciousness and may lead to death.
If you run the pump in an area that is confined, or even partly
enclosed, the air you breathe could contain a dangerous amount of
exhaust gas.
Never run the engine inside a closed garage, house, or confined area.
SAFETY LABEL LOCATIONS
The label shown here contains important safety information. Please
read it carefully. This label is considered a permanent part of your
pump. If the label comes off or becomes hard to read, contact your
authorized Honda pump dealer for a replacement.
Pump Operation
Do not use for pumping liquids for human consumption.
Never pump flammable liquids such as gasoline or fuel oils. An
explosion may result, causing serious injury.
Pump only those chemicals listed in the APPROVED LIQUIDS table
on page 6 of this manual. Pumping chemicals that are not listed may
result in damage to the pump or injury to the operator.
Operate the pump on a level surface. If the engine is tilted, fuel may
spill.
Do not enclose the pump in any structure.
Fuel vapors are extremely flammable and may ignite after the engine
has started. Make sure that any spilled fuel has been wiped up before
starting the pump. Keep flammable materials away from 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 allowed to cool, and the pump on a level surface. Do not overfill
the fuel tank. 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.
2
ASSEMBLY
123 4
After assembly and before operation, review the SAFE OPERATING
PRECAUTIONS on page 5.
LOOSE PARTS
Check all loose parts against the following list. Contact your
authorized Honda servicing dealer if any of the loose parts shown are
not included with your pump.
IMPORTANCE OF PROPER ASSEMBLY
Proper assembly is essential to operator safety and the reliability of
the machine. Any error or oversight made by the person assembling
and servicing a machine can result in faulty operation, damage to the
machine, or injury to the operator.
B WARNING
Improper assembly can cause an unsafe condition that
can lead to serious injury or death.
Follow the procedures and precautions in the assembly
instructions carefully.
Some of the most important safety precautions are given below.
However, we cannot warn you of every conceivable hazard that can
arise in performing this assembly. Only you can decide whether or not
you should perform a given task.
B WARNING
Failure to properly follow instructions and precautions
can cause you to be seriously hurt or killed.
Follow the procedures and precautions in this manual
carefully.
Ref.
No
1 Rubber mount 4
2 8 x 16 mm Flange bolt 4
3 8 mm Locking nut 4
4 Outlet elbow 1
5 Thread tape 1
6 Hose coupling 2
7 Strainer 1
5
6
$
Description Qty.
7
"
IMPORTANT SAFETY PRECAUTIONS
• Make sure you have a clear understanding of all basic shop safety
practices and that you are wearing appropriate clothing and safety
equipment.
• Read the instructions before you begin and be sure you have the
tools and skills required to perform the tasks safely.
• Make sure the engine is off before you begin any maintenance or
repairs. This will help eliminate several potential hazards:
• Carbon monoxide poisoning from engine exhaust. Be sure there
is adequate ventilation whenever you run the engine.
• Burns from hot parts. Let the engine and exhaust system cool
before touching.
• Injury from moving parts. Do not run the engine unless the
instruction tells you to do so. Even then, keep your hands,
fingers, and clothing away from moving parts. Do not run the
engine when any protective guard or shield is removed.
• To reduce the possibility of a fire or explosion, be careful when
working around gasoline. Use only a nonflammable solvent, not
gasoline, to clean parts. Keep all cigarettes, sparks, and flames
away from all fuel-related parts.
UNPACKING
Carefully remove the pump and loose parts from the carton and
compare the loose parts with the inventory list.
Tools Required:
12 mm wrench
Torque wrench
#
!
$
1. Install the four rubber mounts 1 on the pump using the 8 x 16 mm
flange bolts 2 and 8 mm locking nuts 3. Tighten to 6 - 7 ft-lb.
2. Apply thread tape 5 to the outlet elbow 4 and then install it
securely in the pump housing.
3. Apply thread tape to the two hose couplings 6 and securely install
one in the suction port and the other in the outlet elbow 4.
3
CONTROL LOCATIONS BEFORE OPERATION
Your safety is your responsibility. A little time spent in preparation will
significantly reduce your risk of injury.
THROTTLE
LEVER (p. 7)
CHOKE
LEVER
(p. 7)
FUEL
VALVE
(p. 7)
PRIMING
FILLER CAP (p. 5)
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
using it. Know how to quickly shut off the engine in case of an
emergency.
Be familiar with any safety precautions that are needed to properly
pump the chemicals that are listed on page 6.
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.
STARTER
GRIP
DISCHARGE
PORT (p. 5)
SUCTION PORT
(p. 5)
FRAME
FUEL FILLER
CAP (p. 9)
IGNITION SWITCH
(p. 7)
AIR CLEANER
(p. 10)
OIL DRAIN PLUG
(p. 10)
B WARNING
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 pre-operation inspection before each
operation, and correct any problem.
Before beginning your pre-operation 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 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.
• Keep all shields and covers in place while operating the pump.
• Check the general condition of the hoses. Be sure the hoses are in
serviceable condition before connecting them to the pump.
Check the Engine
• Check the oil level (page 9).
• Check the air cleaner (page 10).
• Check the fuel level (page 9). Starting with a full tank will help to
eliminate or reduce operating interruptions for refueling.
PUMP DRAIN
PLUG (p. 12)
4
OIL FILLER CAP/
DIPSTICK (p. 9)
OPERATION
SAFE OPERATING PRECAUTIONS
Before operating the pump for the first time, please review
IMPORTANT SAFETY INFORMATION (page 2) and BEFORE
OPERATION (page 4).
For your safety, do not start or operate 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.
Suction Hose Connection
Use a commercially available hose, hose connector, and hose
clamps. The suction hose must be reinforced with a non collapsible
wall or wire braided construction to prevent suction hose collapse.
Keep the pump as close to the liquid to be pumped as possible. Avoid
bends and sharp turns. Pump performance is best when the pump is
not far above the liquid level and the hose is kept straight.
Self-priming time is also proportional to the suction hose length. Using
a longer suction hose will increase the self-priming time.
Tighten the hose
connector to the
suction hose with a
hose clamp to
prevent air leakage
and loss of suction.
Verify that the
connector sealing
washer is installed
and in good
condition. A loosely
connected suction
hose will reduce
pump performance
and self-priming
ability.
The strainer provided with the pump should always be attached to the
end of the suction hose with a hose clamp as shown.
The strainer will prevent debris from entering the pump, preventing
clogging or damage to the pump. Clean the strainer of any debris.
Discharge Hose Connection
Use a commercially available hose, hose connector, and hose clamp.
A short, large diameter hose will provide lower fluid friction and
improve pump efficiency. A long or small diameter hose increases
fluid friction and reduces pump output.
SEALING WASHER
HOSE CLAMP
STRAINER
Tighten the hose clamp to prevent the hose from disconnecting under
high pressure.
PRIMING FILLER
CAP
PRIMING LIQUID
DISCHARGE
HOSE
HOSE CLAMP
If the discharge hose must run across a roadway, the hose should
cross the roadway perpendicular to traffic flow. Also, heavy boards
should be placed next to the hose so the motor vehicle weight does
not shut off the discharge as vehicles cross over the hose.
BOARDS
DISCHARGE
HOSE
Driving over a discharge hose while the pump is running, or even
possibly when the pump is stopped, may cause pump case failure.
PRIMING FILLER
HOLE
Pump Priming
Remove the priming filler cap and completely fill the pump chamber
with water before starting the engine. Replace the priming filler cap.
NOTICE
Operating the pump dry will destroy the pump seal.
• Ensure the pump chamber is full of liquid and the suction hose
strainer is submerged in the liquid to be pumped.
• If the unit has been operated dry, stop the engine immediately and
allow the pump to cool before adding priming liquid.
5
APPROVED LIQUIDS
The following is a list of chemicals that the multi-purpose pump is
capable of pumping. The operator must verify that the liquid that is to
be pumped is on these lists. After each use, drain the pump chamber
into a suitable container and flush with fresh water.
DO NOT PUMP LIQUIDS FOR HUMAN CONSUMPTION.
B WARNING
PUMP PERFORMANCE
The maximum pump discharge capacity is determined when pumping
clear water at 0 ft (0 meters) total head and at sea level. As the total
head (discharge head + suction head) increases, pump discharge
capacity decreases (see figure below). If the pump is used at higher
elevations, pump discharge capacity may also decrease. Other
factors affecting pump discharge capacity are:
• The type of chemical being pumped
Chemicals can cause burns or serious injury.
Wear protective clothing and eye protection when handling
chemicals.
Follow the chemical manufacturer’s handling procedures.
NOTICE
Pumping liquids that are not listed may damage the pump.
Agricultural Chemicals
Aatrex Dual N-Serve 24
Amiben Eradicane Phosphoric Acid
Solutions
Ammonium
Thiosulfate
Banvel Larsban Ranger
Basagran Lasso Round-up
Bicep URAN Solutions Sutan
Bladex Modown Treflan
Extrazine Poly-N
Vernam
Industrial Chemicals
Acetic Acid, 20% Glycerine (Glycerol) Sodium Acetate
Aluminum Sulfate Lactic Acid Sodium Bicarbonate
Ammonium Nitrate Lead Acetate Sodium Bisulfate
Ammonium Sulfate Magnesium Chloride Sodium Bisulfite
Barium Sulfate Magnesium Nitrate Sodium Carbonate,
10%
Borax (Sodium Borate) Magnesium Sulfate Sodium Chlorate
* Calcium Chloride Maleic Acid Sodium Chloride
Citric Acid Nickel Chloride Sodium Nitrate
Copper Sulfate Nickel Sulfate Sodium Silicate
Detergents (General) Oleic Acid Sodium Sulfate
Ethylene Glycol Phosphoric Acid,
0-80%
Fatty Acids Potassium Carbonate Sulfuric Acid, 0-29%
Ferric Nitrate Potassium Chloride Tartaric Acid
Ferric Sulfate Potassium Nitrate Vinegar
Ferrous Sulfate Potassium Sulfate Water (Clear)
Formaldehyde, 40% Soaps (neutral) Water (Salt)
* Temperature does not exceed 80°F (26°C)
The temperature operating range of the pump is between
20 ~ 130°F (-7 ~ 54°C).
Stearic Acid
Zinc Sulfate
• The length and type of the suction and discharge hose used
Pump Performance (Maximum with clear water)
Total head 105 ft (32 m)
Suction head 26 ft (8 m)
Discharge capacity 220 gal/min (833 l/min)
Self-priming time 65 sec at 16.4 ft (5 m)
Pressure 45 psi (310 kPa)
DISCHARGE
HEAD
TOTAL
HEAD
SUCTION
HEAD
Oil Alert® System
The Oil Alert system is designed to prevent engine damage caused by
insufficient oil in the crankcase. Before the oil level in the crankcase
can fall below a safe limit, the Oil Alert system will automatically shut
down the engine (the ignition switch will remain in the ON position).
If the engine stops and will not restart, check the oil level (page 9)
before troubleshooting in other areas.
6
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