HONDA WMP20X User 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 17) and EMISSION CONTROL SYSTEM WARRANTY
(page 18) 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 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.
OWNER’S MANUAL
WMP20X
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 symbol and one
of three signal words: DANGER, WARNING, or CAUTION. These
signal words mean:
DANGER
WARNING
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
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.
WARNING:
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
CONTROL LOCATIONS ...................3
BEFORE OPERATION......................3
IS YOUR PUMP READY TO GO?3
OPERATION......................................4
PUMP PRECAUTIONS ................4
LIQUID RECOMMENDATIONS ...4
PUMP PERFORMANCE ..............5
STARTING THE ENGINE.............6
STOPPING THE ENGINE ............6
SERVICING YOUR PUMP................7
MAINTENANCE SAFETY.............7
MAINTENANCE SCHEDULE.......7
ENGINE MAINTENANCE.............8
REFUELING ...............................11
TRANSPORTING............................11
STORAGE.......................................12
TAKING CARE OF UNEXPECTED
PROBLEMS.....................................13
TECHNICAL INFORMATION..........14
SERIAL NUMBER LOCATIONS.14
CARBURETOR
MODIFICATION FOR HIGH
ALTITUDE OPERATION............ 14
EMISSION CONTROL SYSTEM14
AIR INDEX..................................15
SPECIFICATIONS......................15
CONSUMER INFORMATION .........16
REPLACEMENT PARTS,
OPTIONAL EQUIPMENT, AND
SERVICE ITEMS........................ 16
DEALER LOCATOR
INFORMATION...........................17
CUSTOMER SERVICE
INFORMATION...........................17
DISTRIBUTOR'S LIMITED
WARRANTY............................... 17
ACCESSORIES,
REPLACEMENT PARTS, AND
APPAREL WARRANTY..............18
EMISSION CONTROL SYSTEM
WARRANTY............................... 18
© 1996–2007 American Honda Motor Co., Inc.—All Rights Reserved
31YE0621
00X31-YE0-6210
EM3
IPC
POM50594-G
xxx.2007.04
PRINTED IN U.S.A.
1
PUMP SAFETY
This chapter explains what you need to know to operate your pump
safely.
IMPORTANT SAFETY INFORMATION
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.
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. So 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 LIQUID RECOMMENDATIONS
on page 4 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
CONTROL LOCATIONS BEFORE OPERATION
Your safety is your responsibility. A little time spent in preparation will
significantly reduce your risk of injury.
PRIMING
FUEL FILLER
CAP (p. 11)
(p. 6)
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 5.
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.
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.
CHOKE
LEVER
(p. 6)
FUEL
VALVE
(p. 12)
THROTTLE
LEVER (p. 6)
STARTER
GRIP (p. 6)
FILLER CAP (p. 4)
IGNITION SWITCH
DISCHARGE
PORT (p. 4)
SUCTION PORT
(p. 4)
PUMP DRAIN
PLUG (p. 12)
FRAME
OIL FILLER CAP/
DIPSTICK (p. 8)
AIR CLEANER
(p. 9)
OIL DRAIN PLUG
(p. 8)
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 8).
• Check the air cleaner (page 9).
• Check the fuel level (page 11). Starting with a full tank will help to
eliminate or reduce operating interruptions for refueling.
3
OPERATION
PUMP PRECAUTIONS
Before operating the pump for the first time, please review
IMPORTANT SAFETY INFORMATION (page 2) and BEFORE
OPERATION (page 3).
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.
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 that can cause
clogging or damage to the impeller and other parts of the pump.
SEALING
WASHER
HOSE CLAMP
STRAINER
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.
Tighten the hose clamp to prevent the hose from disconnecting under
high pressure.
PRIMING
FILLER CAP
PRIMING
LIQUID
DISCHARGE HOSE
HOSE CLAMP
PRIMING
FILLER HOLE
Pump Priming
Remove the priming filler cap and completely fill the pump chamber
with liquid 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.
LIQUID RECOMMENDATIONS
The following is a list of chemicals that the multipurpose 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 USE FOR PUMPING LIQUIDS FOR HUMAN
CONSUMPTION
WARNING
Chemicals can cause burns or serious injury.
Wear protective clothing and eye protection
when handling chemicals.
Follow the chemical manufacturer’s handling
procedures.
4
NOTICE
DISCHARGE
HEAD
SUCTION
HEAD
TOTAL
HEAD
Pumping liquids that are not listed may cause damage to 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.
The temperature operating range of the pump is between
20 ~ 130°F (-7 ~ 54°C).
Stearic Acid
Zinc Sulfate
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). 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.
• 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 /min)
Self-priming time 65 sec at 16.4 ft (5 m)
Pressure 45 psi (310 kPa)
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 8)
before troubleshooting in other areas.
5
STARTING THE ENGINE
STOPPING THE ENGINE
1. Turn the fuel valve to
the ON position.
2. Move the choke lever
to the CLOSED
position.
Do not use the choke
if the engine is warm
or the ambient
temperature is high.
3. Turn the ignition
switch to the ON
position.
4. Move the throttle
lever slightly to the
left.
5. Pull the starter grip
lightly until resistance
is felt, then pull it
briskly.
FUEL VALVE
CHOKE LEVER
CLOSED
IGNITION
SWITCH
THROTTLE LEVER
ON
ON
Emergency
To stop the engine in an
emergency, turn the
ignition switch to the OFF
position.
Normal
1. Move the throttle lever
fully to the right to the
IDLE position.
2. Turn the ignition switch
to the OFF position.
3. Turn the fuel valve to the
OFF position.
4. If the pump is not going
to be used again for the
rest of the day, or is
going to be stored for a
long period of time, refer
to page 13 for
procedures on properly
storing your pump.
After each use, drain the
pump chamber and flush
with fresh water.
IGNITION
SWITCH
OFF
THROTTLE LEVER
IDLE
FUEL VALVE
OFF
NOTICE
Return the starter grip
slowly back to the engine to prevent damage to the starter.
6. As the engine warms
up, gradually move
CHOKE LEVER
the choke lever to the
OPEN position.
OPEN
7. Set the throttle to the
desired speed to
THROTTLE LEVER
produce the best
pumping conditions.
Pump output can be
controlled by adjusting
the throttle lever to the
desired position.
At FULL throttle
position, the pump will
FULL
deliver the highest
output volume. Moving the throttle toward the IDLE position will
decrease the output volume of the pump.
IDLE
6
SERVICING YOUR PUMP
Proper maintenance is essential for safe, economical, and
trouble-free operation. It will also help reduce air pollution.
WARNING
Improper maintenance, or failure to correct a problem
before operation, can cause a malfunction in which you
can be seriously hurt or killed.
Always follow the inspection and maintenance
recommendations and schedules in this owner’s manual.
To help you properly care for your pump, the following pages include
a maintenance schedule, routine inspection procedures, and simple
maintenance procedures using basic hand tools. Other service tasks
that are more difficult, or require special tools, are best handled by
professionals and are normally performed by a Honda technician or
other qualified mechanic.
The maintenance schedule applies to normal operating conditions. If
you operate your pump under severe conditions, such as sustained
high-load or high-temperature operation, or use in unusually wet or
dusty conditions, consult your servicing dealer for recommendations
applicable to your individual needs and use.
Remember that an authorized Honda servicing dealer knows your
pump best and is fully equipped to maintain and repair it.
To ensure the best quality and reliability, use only new, genuine
Honda parts or their equivalents for repair and replacement.
Maintenance, replacement, or repair of the emission control
devices and systems may be performed by any engine repair
establishment or individual, using parts that are “certified” to
EPA standards.
MAINTENANCE SAFETY
Some of the most important safety precautions follow. However, we
cannot warn you of every conceivable hazard that can arise in
performing maintenance. Only you can decide whether or not you
should perform a given task.
• To reduce the possibility of fire or explosion, be careful when
working around gasoline. Use only a nonflammable solvent, not
gasoline, to clean parts. Keep cigarettes, sparks, and flames away
from all fuel-related parts.
MAINTENANCE SCHEDULE
Interval
Before each use
After each use
First month or
20 hours
Every 3 months or
50 hours
Every 6 months or
100 hours
Every year or
300 hours
Every 2 years Check the fuel line and replace if necessary
After every 500
hours
1. For professional commercial use, log hours of operation to
determine proper maintenance intervals.
2. Service more frequently when used in dusty areas.
1
Check the engine oil level (page 8)
Check the air filter (page 9)
Check pump hoses and strainer (page 4)
Flush the pump chamber
Change the engine oil (page 8)
Clean the air filter
Clean the sediment cup (page 10)
Change the engine oil
Inspect-adjust the spark plug (page 9)
Clean-check the spark arrester (page 10)
(optional equipment)
Change the engine oil
Replace the air cleaner paper filter
Replace the spark plug (page 9)
Adjust the valve clearance
Adjust the idle speed
Clean the fuel tank and filter
Clean the combustion chamber
Item
2
(page 9)
2
2
3
(page 8)
(page 8)
3
3
3
2
(page 9)
3
WARNING
Failure to properly follow maintenance instructions and
precautions can cause you to be seriously hurt or killed.
Always follow the procedures and precautions in this
owner’s manual.
Safety Precautions
• Make sure the engine is off before you begin any maintenance or
repairs. This will eliminate several potential hazards:
• Carbon monoxide poisoning from engine exhaust.
Operate outdoors away from open windows or doors.
• Burns from hot parts.
Let the engine and exhaust system cool before touching.
• Injury from moving parts.
Do not run the engine unless instructed to do so.
• Read the instructions before you begin, and make sure you have
the tools and skills required.
3. These items should be serviced by an authorized Honda servicing
dealer, unless you have the proper tools and are mechanically
proficient.
Failure to follow this maintenance schedule could result in
non-warrantable failures.
7
ENGINE MAINTENANCE
Engine Oil Level Check
Check the engine oil level with the engine stopped and in a level
position.
1. Remove the filler cap/dipstick and wipe it clean.
3. Fill with the
recommended oil to
the top of the oil
filler neck.
4. Screw in the oil filler
cap securely.
OIL
FILLER
CAP
FILLER CAP/DIP
STICK
2. Insert and remove the dipstick without screwing it into the filler
neck. Check the oil level shown on the dipstick.
UPPER LIMIT
LOWER LIMIT
3. If the oil level is low, fill to the edge of the oil filler hole with the
recommended oil.
4. Screw in the filler cap/dipstick securely.
NOTICE
Running the engine with a low oil level can cause engine damage.
Engine Oil Change
Drain the oil while the engine is warm. Warm oil drains quickly and
completely.
1. Remove the oil
filler cap, drain
plug, and sealing
washer. Drain the
oil into a suitable
container.
2. Reinstall the drain
plug and sealing
washer. Tighten
the plug securely.
TOP OF
OIL FILLER NECK
Engine Oil Recommendations
Oil is a major factor affecting performance and service life. Use
4-stroke automotive detergent oil.
30
5W-30 • 10W-30
AMBIENT TEMPERATURE
SAE 10W-30 is recommended for general use. Other viscosities
shown in the chart may be used when the average temperature in
your area is within the recommended range.
The SAE oil viscosity and service category are in the API label on the
oil container. Honda recommends that you use API SERVICE
category SJ or later oil with the ILSAC “starburst” certification mark
displayed on the container.
NOTICE
Using nondetergent oil can shorten the engine's service life, and using
2-stroke oil can damage the engine.
Please dispose of
used motor oil and
the oil containers in
a manner that is
FILLER
CAP
compatible with the
environment. We
suggest you take
SEALING WASHER
DRAIN PLUG
used oil in a sealed
container to your local recycling center or service station for
reclamation. Do not throw it in the trash or pour it on the ground or
pour it down a drain.
8
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