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INTRODUCTION
Congratulations on your selection of a Honda diaphragm pump! We
are certain you will be pleased with your purchase of one of the finest
pumps on the market.
OWNER’S MANUAL
We want to help you get the best results from your new pump and to
WDP30X
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 21) and EMISSION CONTROL SYSTEM WARRANTY
(page 22) to fully understand co
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SAFETY LABEL LOCATIONS PUMP SAFETY The label shown here contains important safety information. Please This chapter explains what you need to know to operate your read it carefully. This label is considered a permanent part of your diaphragm pump safely. pump. So if the label comes off or becomes hard to read, contact your authorized Honda pump dealer for a replacement. IMPORTANT SAFETY INFORMATION The Honda WDP30X pump is not designed to pump drinking water. Pump only non-potable water, mudd
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CONTROL LOCATIONS BEFORE OPERATION Your safety is your responsibility. A little time spent in preparation will GEAR BOX OIL FILLER significantly reduce your risk of injury. GEAR BOX DRAIN CAP/DIPSTICK (p. 12) BOLT (Remove Read and understand this manual. Know what the controls do and MUFFLER connecting rod how to operate them. cover) (p. 12) 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 FUEL CAP emerg
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NOTICE OPERATION Due to pump movement during operation, connecting a rigid pipe to the pump will cause pump damage. Always use flexible suction and SAFE OPERATING PRECAUTIONS discharge hoses to prevent pump damage. Before operating the pump for the first time, please review IMPORTANT SAFETY INFORMATION (page 2) and BEFORE When water being pumped contains solids, the solids may get lodged OPERATION (page 3). under the clappet valves, which will prevent the clappet valves from For your safet
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Pump Priming PUMP PREPARATION Pump priming is not required if the vertical distance from water to the Optional hose kits, designed specifically for this pump, are available pump (suction head) is less than 16 feet. The suction head can be from your Honda dealer. See page 20. increased to 24 feet if the pump is primed. Suction Hose Connection To prime the pump, remove the air cushion chamber cap. Grasp the If using a commercially available hose, ensure it is the same size or suction hose next
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5. Pull the starter grip STARTING THE ENGINE lightly until resistance 1. Turn the fuel valve to the ON position. is felt, then pull it briskly. FUEL VALVE NOTICE Return the starter grip slowly back to the engine to prevent damage to the starter. STARTER GRIP O ON N 6. As the engine warms ……ON CHOKE LEVER up, gradually move the choke lever to the OPEN position. 2. Move the choke lever to the CLOSED position. Do not use the choke if the engine is warm or the ambient OPEN temperature is h
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Safety Precautions SERVICING YOUR PUMP • Make sure the engine is off before you begin any maintenance or repairs. This will eliminate several potential hazards: Proper maintenance is essential for safe, economical, and • Carbon monoxide poisoning from engine exhaust. trouble-free operation. It will also help reduce air pollution. Be sure there is adequate ventilation whenever you operate the engine. B WARNING • Burns from hot parts. Let the engine and exhaust system cool before touching. Impro
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2. Reinstall the drain bolt and sealing washer. Tighten the bolt ENGINE MAINTENANCE securely. Engine Oil Level Check NOTICE Check the engine oil level with the engine stopped and in a level position. Improper disposal of engine oil can be harmful to the environment. If you change your own oil, please dispose of the used oil properly. 1. Remove the filler cap/dipstick and wipe it clean. Put it in a sealed container, and take it to a recycling center. Do not discard it in a trash bin, dump it
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Air Filter Inspection Air Filter Cleaning 1. Unscrew the outer wing nut and remove the air cleaner cover. A properly maintained air filter will help prevent dirt from entering your engine. Dirt entering the carburetor can be drawn into small passages OUTER in the carburetor and cause premature engine wear. These small WING NUT passages can become blocked, causing starting or running problems. Always use an air filter specified for your engine to ensure it seals and performs as designed. You
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Spark Plug Service Spark Arrester (optional equipment) Recommended Spark Plug: NGK - BPR6ES Your pump engine is not factory-equipped with a spark arrester. In some areas, it is illegal to operate an engine without a spark arrester. Check local laws and regulations. An optional USDA approved spark NOTICE arrester is available from an authorized Honda servicing dealer. See Incorrect spark plugs can cause engine damage. page 20 for part numbers. The spark arrester must be serviced every 100 hou
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Sediment Cup Cleaning REFUELING 1. Turn the fuel valve to the This engine is certified to operate on unleaded gasoline with a pump OFF position. ON OFF octane rating of 86 or higher. FUEL 2. Remove the sediment VALVE We recommend refueling after each use to minimize the air present in cup and O-ring and wash the fuel tank. them in nonflammable Refuel in a well-ventilated area with the engine stopped. If the engine solvent. Dry them has been running, allow it to cool first. Never refuel t
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Pump Gear Box Oil Change PUMP MAINTENANCE 1. Run the engine for 10 minutes to warm up the gear box oil. Warm Pump Chamber Flushing oil drains quickly and completely. With the engine stopped, the pump case should be flushed after each 2. Shut off the engine. use to prevent sediment from building up in the case. 3. Remove the two 8 x 15 mm bolts and washers from the connecting 1. Disconnect the suction and discharge hoses. rod cover and remove the cover. 2. Insert a garden hose into the suct
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11. After tightening the nuts, insert a screwdriver into each port and Pump Clappet Valves check clappet valve operation. Clappets should operate freely 1. Disconnect the spark plug cap from the spark plug (page 3). and should seal when released. If a clappet does not operate 2. Turn the fuel valve lever to the OFF position (page 3). properly, reinstall the clappet and recheck. 3. Flush the pump chamber (page 12). 12. Run the pump and check for leaks. 4. Lift the suction side of the pump and
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6. If the diaphragm is 4. Install the connecting rod with the hardware shown below and 12 mm to be reused, mark torque the connecting rod bolt to 40 ft-lb (54 N•m). NUT (4) the diaphragm to CONNECTING allow it to be ROD FLANGE NYLON installed in the same 12 mm WASHER position. WASHER (4) WASHER 7. With a 19 mm wrench, remove the DIAPHRAGM SHOULDER 4 nuts securing the 10 mm connecting rod to BOLT the lower flange. Remove the LOWER diaphragm. FLANGE CRANK 10 mm LOCK ARM WASHER 8. Inspec
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TRANSPORTING STORAGE BEFORE LOADING STORAGE PREPARATION When transporting the pump, be sure to keep it upright. If the pump is The following steps will help to keep rust and corrosion from impairing tilted or overturned, fuel may spill from the tank, which can result in a your pump's function and appearance, and will make the engine fire hazard. easier to start when you use the pump again. Allow the engine to cool before transporting the pump. Cleaning the Engine 1. Turn the ignition Wash the
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Fuel system damage or engine performance problems resulting from Engine Oil neglected storage preparation are not covered under the Distributor’s 1. Change the engine oil (page 8). Limited Warranty. 2. Check the air filter and clean as necessary (page 9). Short Term Storage (30-90 days) 3. Remove the spark plug (page 10). If your equipment will not be used for 30 to 90 days, we recommend 4. Pour a tablespoon (5 - 10 cc) of clean engine oil into the cylinder. the following to prevent fuel-rela
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TAKING CARE OF TECHNICAL INFORMATION UNEXPECTED PROBLEMS SERIAL NUMBER LOCATIONS Engine Will Not Start Possible Cause Correction Ignition switch OFF Turn the ignition switch ON (page 6). Fuel valve OFF Turn the fuel valve ON (page 6). Choke lever in the wrong Move the choke lever to the position CHOKE position, unless the engine is warm (page 6). Throttle lever in the wrong Move the throttle lever slightly to position the left (page 6). Out of fuel Refuel (page 11). Bad fuel; pump stored Dra
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Maintenance EMISSION CONTROL SYSTEM Follow the MAINTENANCE SCHEDULE on page 7. Remember this Source of Emissions schedule is based on the assumption that your machine will be used The combustion process produces carbon monoxide, oxides of for its designed purpose. Sustained high-load or high-temperature nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of operation, or use in unusually wet or dusty conditions, will require nitrogen is very important because, under certain cond
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Pump Pump Performance Curve This graph shows the relationship between the pump discharge Pump type Diaphragm with spring-type capacity and the total dynamic head, based on clear water at sea connecting rod level. As you increase the total head, the discharge capacity will decrease. Suction port diameter/thread type 3 in/NPT Discharge port diameter/thread type Maximum total head 50 ft (15 m) Maximum suction head (dry) 16 ft (4.9 m) Maximum suction head (after 24 ft (7.3 m) priming pump hous
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DEALER LOCATOR INFORMATION CONSUMER INFORMATION To find an Authorized Honda Servicing Dealer anywhere in the United States: REPLACEMENT PARTS, Visit our website: OPTIONAL EQUIPMENT, AND SERVICE ITEMS www.HondaPowerEquipment.com and click on Dealer Locator. Contact an authorized Honda servicing dealer to purchase any of these (or other) genuine, original Honda items for your pump. CUSTOMER SERVICE INFORMATION Replacement Parts Honda Power Equipment dealership personnel are trained professiona
