HONDA WB20XT, WB30XT water pump OWNER'S MANUAL 35 Pages
HONDA WB20XT, WB30XT water pump OWNER'S MANUAL
WB20XT and WB30XT are Honda water pumps designed for reliable service when operated according to instructions. The manuals include information on operation and maintenance of the pumps.
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HONDA WATER PUMP WB20XT - WB30XT OWNER'S MANUAL MANUEL DE L'UTILISATEUR BEDIENUNGSANLEITUNG MANUAL DE EXPLICACIONES Honda: WB20XT, WB30XT OWNER'S MANUAL Original instructions MANUEL DE L'UTILISATEUR Notice originale BEDIENUNGSANLEITUNG Originalbetriebsanleitung MANUAL DE EXPLICACIONES Manual original The‘‘e-SPEC‘’mark symbolizes environmental! „equipment, which contains our wish to “preserve y responsible technologies applied to Honda = nature for generations to come.” Thank you for purchasing a Honda water pump. This manual covers the operation and maintenance of Honda water pump: WB20XT/WB30XT All information in this publication is based on the latest product information available at the time of approval for printing. Honda Motor Co., Ltd. reserves the right to make changes at any time without notice and without incurring any obligation. No part of this publication may be reproduced without written permission. This manual should be considered a permanent part of the pump and should remain with the pump if it is resold. The illustrations in this manual are based on: WB20XT Pay special attention to statements preceded by the following words: Indicates a strong possibility of severe personal injury or death if instructions are not followed. CAUTION: Indicates a possibility of equipment or property damage if instructions are not followed. NOTE: Gives helpful information. If a problem should arise, or if you have any questions about the pump, consult an authorized Honda dealer. AWARNING Honda water pump is designed to give safe and dependable service if operated according to instructions. Read and understand the Owner's Manual before operating the wa- ter pump. Failure to do so could result in personal injury or equip- ment damage. * The illustration may vary according to the type. r Disposal To protect the environment, do not dispose of this product, battery, engine oil, etc. carelessly by leaving them in the waste. Observe the local laws and regulations or consult your authorized | Honda dealer for disposal. CONTENTS 1. SAFETY INSTRUCTION eee eee noces 3 2. SAFETY LABEL LOCATIONS -............oocconancassecocanoearoconaoanaonaaeaencaneamen 5 CE mark and noise label locations .......................eeeoocococonccconcccacaneocanes 6 3. COMPONENT IDENTIFICATION -...............ccncecaroosoroccacanacoreneneccaanaaaacenes 7 4. PRE-OPERATION FOR STARTING................eeeerassanveocorcarcanonecenccoaaorocane 9 5. STARTING THE ENGINE -...................cssonccoscouccecaranoooceacaaaananenacecanananene 15 e High altitude operation... creer e e 17 6. OPERATION -.............ccecorcosscccccaccacenoocoacananoacnaanarannanecancanan nece eaneaeca neon 18 7. STOPPING THE ENGINE -.................eooncccoconcccsccnacaanoooccacacacaacaaaaaaaacacanane 19 8. MAINTENANCE -..................secscccecooosoccoceananeaocacanacaaaaaacecanaanaaaaoaanannanee nes 20 9. TRANSPORTING/STORAGE .….……..rccrrrrrsrrecrecrenceneersoreacarnenannenmeccnnnne 27 10. TROUBLESHOOTING.............escencsoecascconeooeoruececaneee ee reeeeeenene er ceereece. 29 11. SPECIFICATIONS.................eescconooconcaceccanaaasonancucenaa ee nacecaneraaoaencancenmee 31 MAJOR Honda DISTRIBUTOR ADDRESSES................. Inside back cover EC Declaration of Conformity’ CONTENT OUTLINE........ Inside back cover 2 1. SAFETY INSTRUCTION AWARNING To ensure safe operation — ( AED x * Honda water pump is designed to give safe and dependable service if operated according to in- structions. Read and understand the Owner's Manual be- fore operating the water pump. Failure to do so could result in personal injury or equipment dam- age. N A N » Exhaust contains poisonous carbon monoxide, a colorless, 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 partially enclosed area, the air you breathe could contain a dangerous amount of exhaust gas. * Never run your pump inside a garage, house or near open windows or doors. * Stop the engine before refueling. * Gasoline is extremely flammable and explosive under certain conditions. Refuel in a well ventilated area with the engine stopped. * Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled, make sure the area is dry before starting the engine. * Never run the engine in an enclosed or confined area. Exhaust gas contains poisonous carbon monoxide gas; exposure can cause loss of consciousness and may lead to death. AWARNING To ensure safe operation — * Always make a pre-operation inspection (page 9 ) before you start the engine. You may prevent an accident or equipment damage. e For safety, never pump flammable or corrosive liquids such as gasoline or acid. Also, to avoid pump corrosion, never pump sea water, chemical solutions, or caustic liquids such as used oil, wine, or milk. e Place the pump on a firm, level surface. If the pump is tilted or overturned, fuel spillage may result. * To prevent fire hazards and to provide adequate ventilation, keep the pump at least 1 meter (3 feet) away from building walls and other equipment during operation. Do not place flammable objects close to the pump. Children and pets must be kept away from the area of operation due to a possibility of burns from the hot engine components. e Know how to stop the pump quickly, and understand the operation of all controls. Never permit anyone to operate the pump without proper instructions. 2.SAFETY LABEL LOCATIONS These labels warn you of potential hazards that can cause serious inju- ry. Read the labels and safety notes and precautions described in this manual carefully. If a label comes off or becomes hard to read, contact your Honda deal- er for a replacement. OPERATOR CAUTION [For European types] AMAS MADE IN THAILAND J, (7 PUMP CAUTION [For Australian types] CAUTION! DO NOT RUN WITHOUT PRECAUCIÓN! NO HAGA FUNCIONAR PRIMING WATER. DRY OPERATION SIN CEBADO FUNCIONAMIENTO WILL BURN THE SEAL. SECO QUEMA EL SELLO. VORSICHT! VOR DEM ANLAUFEN PRECAUTION! NE FAITE PAS FON- BEI TESTUND LEERLAUF GEHAUSE CTIONNER SANS AMORSAGE. MIT WASSER BEFULLEN. TROCKEN- FONCTIONNEMENT AU SEC AUF ZERSTORT DIE DICHTUNGEN. BRULE LE JOINT D'ETANCHEITE. CE mark and noise label locations [For European types] CE MARK [Example: WB20XT] ” Manufacturer and address Sales agency and address ( Thaï Honda Manufacturing Co., Ltd. | Honda Motor Europe Ltd. | 410 Ladkrabang industrial Estate, Aalst Office Lamplatue Ladkrabang, Wijngaardveld 1 (Noord V), Bangkok 10520, Thailand 9300 Aalst - BELGIUM C € I WB20XT E +++ — Year of manufacture ae / H ++ kg — Dry mass N / Model « 3.COMPONENT IDENTIFICATION (WB20XT> DISCHARGE PORT THROTTLE LEVER = GE PO FUEL VALVE LEVER ol FILLER CAP/ IPSTICK STRAINER STARTER GRIP ENGINE SWITCH PRIMING WATER MUFFLER FRAME FILLER CAP у AIR CLEANER т \ y \\ 4 Cr pa ww ЕС) 7 Xu CON A A YT yt 7 al SUCTION PORT PUMP DRAIN PLUG OIL DRAIN PLUG HOSE CONNECTOR <WB30XT> DISCHARGE PORT THROTTLE LEVER FUEL VALVE LEVER STARTER GRIP on FILLER CAP/ STRAINER ENGINE SWITCH PRIMING WATER MUFFLER FRAME FILLER CAP AIR CLEANER SUCTION PORT HOSE CONNECTOR OIL DRAIN PLUG PUMP DRAIN PLUG 4. PRE-OPERATION FOR STARTING 1. Connect the suction hose. Use commercially available hose, hose connector, and hose bands. The suction hose must be of reinforced, noncollapsible construction. Suction hose length should not be longer than necessary, as pump performance is best when the pump is not far above the water level. Self-priming time is also proportional to hose length. The strainer that is provided with the pump should be attached to the end of the suction hose with a band, as shown. CAUTION: Always install the strainer on the end of the suction hose before pumping. The strainer will exclude debris that can cause clogging or impeller damage. SEALING WASHER SUCTION PORT HOSE COUPLING HOSE CLAMP RING SUCTION HOSE poet HOSE BAND HOSE CONNECTOR STRAINER HOSE BAND HOSE BAND SUCTION HOSE 2. Connect the discharge hose. Use a commercially available hose, hose connector, and hose band. A short, large-diameter hose is most efficient. Long or small-diameter hose increases fluid friction and reduces pump output. NOTE: Tighten the hose band securely to prevent the hose from disconnecting under high pressure. HOSE BAND DISCHARGE HOSE 3. Check the engine oil level. CAUTION: e Engine oil is a major factor affecting engine performance and service life. Nondetergent or vegetable oils are not recommended. e Check the oil level with the pump on a level surface and the engine stopped. Use high-detergent, premium quality 4-stroke engine oil, certified to meet or exceed U.S. automobile manufacturer's requirements for API service category SE or later (or equivalent). Select the appropriate viscosity for the average temperature in your area. 10 0 10 20 30 40°C г т TT | 20 40 60 80 100 120% AMBIENT TEMPERATURE 10 Remove the oil filler cap/dipstick and wipe it clean. Insert the filler cap/dipstick into the oil filler neck, but do not screw it in. If the level is low, fill to the top of the oil filler neck with the recom- mended oil. CAUTION: Running the engine with insufficient oil can cause serious engine damage. OIL FILLER NECK UPPER LIMIT OIL FILLER CAP Oil Alert System (Where equipped) 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 auto- matically stop the engine (the engine switch will remain in the ON position). If the engine stops and will not restart, check the engine oil level before troubleshooting in other areas. 11 4. Check the fuel level. Use automotive unleaded gasoline with a Research Octane Number of 91 or higher (a Pump Octane Number of 86 or higher). Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank. AWARNING e Gasoline is extremely flammable and is explosive under certain conditions. e Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow flames or sparks in the refueling area or where gasoline is stored. e Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is spilled, make sure the area is dry before starting the engine. e Avoid repeated or prolonged contact with skin or breathing of vapor. KEEP OUT OF REACH OF CHILDREN. With the engine stopped and on a level surface, remove the fuel tank cap and check the fuel level. Refill the tank if the fuel level is low. Do not fill the fuel tank completely. Fill tank to approximately 25 mm (1 inch) below the top of the fuel tank to allow for fuel expansion. If may be necessary to lower the fuel level depending on operating conditions. After refueling, make sure the tank cap is closed properly and securely. FUEL TANK TOP MAXIMUM FUEL LEVEL Ne 25 mm (1 inch) 12 NOTE: Gasoline spoils very quickly depending on factors such as light exposure, temperature and time. In worst cases, gasoline can be contaminated within 30 days. Using contaminated gasoline can seriously damage the engine (clogged carburetor, stuck valve). Such damage due to spoiled fuel is disallowed from coverage by the warranty. * To avoid this please strictly follow these recommendations: * Only use specified gasoline (see page 12 ). * Use fresh and clean gasoline. * To slow deterioration, keep gasoline in a certified fuel container. e If long storage (more than 30 days) is foreseen, drain fuel tank and carburetor (see page 27). Gasolines containing alcohol If you decide to use a gasoline containing alcohol (gasohol), be sure it’s octane rating is at least as high as that recommended by Honda. There are two types of “gasohol”: one containing ethanol, and the other containing methanol. Do not use gasohol that contains more than 10% ethanol. Do not use gasoline containing methanol (methyl or wood alcohol) that does not also contain cosolvents and corrosion inhibitors for methanol. Never use gasoline containing more than 5% methanol, even if it has cosolvents and corrosion inhibitors. NOTE: * Fuel system damage or engine performance problems resulting from the use of fuels that contain alcohol! is not covered under the warranty. Honda cannot endorse the use of fuels containing methanol since evidence of their suitability is as yet incomplete. e Before buying fuel from an unfamiliar station, try to find out if the fuel contains alcohol, if it does, confirm the type and percentage of alcohol used. If you notice any undesirable operating symptoms while using a gasoline that contains alcohol, or one that you think contains alcohol, switch to a gasoline that you know does not contain alcohol. 13 5. Check the air cleaner element. Remove the wing nut, washer and air cleaner cover. Check the element for dirt or obstruction. Clean the element if necessary (see page 23 ). AIR CLEANER COVER AIR CLEANER ELEMENT CAUTION: Never run the engine without the air cleaner. Rapid engine wear will result from contaminants such as dust and dirt being drawn through the carburetor into the engine. 6. Check the priming water. The pump chamber should be primed with full of water before operating. CAUTION: Never attempt to operate the pump without priming water, or the pump will overheat. Extended dry operation will destroy the pump seal. If the unit has been operated dry, stop the engine immediately and allow the pump to cool before adding priming water. PRIMING WATER FILLER CAP 14 5. STARTING THE ENGINE 1. Turn the fuel valve lever to the ON position. 2. Move the choke lever to the CLOSED position. NOTE: Do not use the choke if the engine is warm or the ambient temperature ~ ON a7 3. Turn the engine switch to the ON position. ENGINE SWITCH ON ON 15 4. Move the throttle lever slightly to the left. № =| FAST SLOW THROTTLE LEVER 5. Pull the starter grip lightly until you feel resistance, then pull briskly in the direction of the arrow as shown below. CAUTION: Do not allow the starter grip to snap back against the engine. Return it gently to prevent damage to the starter. STARTER GRIP Direction to pull 16 6. If the choke lever was moved to the CLOSED position to start the engine, gradually move it to the OPEN position as the engine warms up. CHOKE LEVER e High altitude operation At high altitude, the standard carburetor air-fuel mixture will be excessively rich. Performance will decrease, and fuel consumption will increase. High altitude performance can be improved by specific modifications to the carburetor. If you always operate the pump at altitudes higher than 1,500 m (5,000 feet) above sea level, have your authorized Honda dealer perform these carburetor modifications. Even with suitable carburetor jetting, engine horsepower will decrease approximately 3.5 % for each 300 m (1,000 foot) increase in altitude. The effect of altitude on horsepower will be greater than this if no carburetor modification is made. CAUTION: Operation of the pump at an altitude lower than the carburetor is jetted for may result in reduced performance, overheating, and serious engine damage caused by an excessively lean air/fuel mixture. 17 6. OPERATION CAUTION: Never use the pump for muddy water, rejected oil, wine, etc. After starting the engine, move the throttle lever to the FAST position for self-priming, and check pump output. Pump output is controlled by adjusting engine speed. Moving the throttle lever in the FAST direction will increase pump output, and moving the throttle lever in the SLOW direction will decrease pump output. THROTTLE LEVER FAST SLOW 18 7. STOPPING THE ENGINE To stop the engine in an emergency, simply turn the engine switch to the OFF position. Under normal conditions, use the following procedure. 1. Move the throttle lever fully to the right. 2. Turn the engine switch to the OFF position. THROTTLE LEVER ENGINE SWITCH / \ N = 1 Ham 7 \ [~~ =] Son | 0 SLOW 3. Turn the fuel valve lever to the OFF position. FUEL VALVE LEVER 19 8. MAINTENANCE Periodic inspection and adjustment of the pump are essential if high level performance is to be maintained. Regular maintenance will also help to extend service life. The required service intervals and the kind of maintenance to be performed are described in the table below. ВЕ AWARNING Shut off the engine before performing any maintenance. If the engine must be run, make sure the area is well-ventilated. The exhaust contains poisonous carbon monoxide gas; exposure can cause loss of consciousness and may lead to death. CAUTION: e |f the pump has been used with sea water, etc., clean it with fresh water immediately afterward to reduce corrosion or remove sediment. * Use genuine Honda parts or their equivalent for maintenance or repair. Replacement parts which are not of equivalent quality may damage the pump. 20 Maintenance schedule REGULAR SERVICE PERIOD (3) First |Every 3|Every 6| Every Perform at every indicated month or Each | month |months | months| year operating hour interval, whichever use or or or or comes first. 20 hrs. | 50 hrs. | 100 hrs. 1300 hrs. item Engine oil Check level O Change O O Air cleaner Check O Clean O(1) Spark plug Check-adjust O Replace O Spark arrester Clean O (applicable types) (4) Idle speed Check-adjust O (2) Valve clearance Check-adjust O (2) Combustion chamber Clean After every 500 hrs (2) Fuel tank and filter Clean | O(2) | Fuel tube Check Every 2 years (Replace if necessary) (2) Impeller Check O (2) Impeller clearance Check O(2) Pump Inlet valve Check O(2) | NOTE: (1) Service more frequently when used in dusty areas. (2) These items should be serviced by your servicing dealer. (3) For commercial use, log hours of operation to determine proper maintenance intervals. (4) In Europe and other countries where the machinery directive 2006/42/EC is enforced, this cleaning should be done by your servicing dealer. 21 1. Changing oil Drain the oil while the engine is still warm to assure rapid and complete draining. 1. Remave the oil filler cap/dipstick and the drain plug, then drain the oil, 2. Install the drain plug securely using a new sealing washer. 3. Refill with the recommended oil (see page 10 ) to the specified level. OIL CAPACITY: WB20XT: 0.56 L (0.59 US qt, 0.49 Imp qt) WB30XT: 0.58 L (0.61 US gt, 0.51 Imp gt) E SEALING WASHER DRAIN PLUG OIL FILLER CAP/DIPSTICK Wash your hands with soap and water after handling used oil. NOTE: Please dispose of used motor oil in a manner that is compatible with the environment. We suggest you take it in a sealed container to your local service station for reclamation. Do not throw it in the trash or pour it on the ground. 22 2. Air cleaner service A dirty air cleaner will restrict air flow to the carburetor. To prevent carburetor malfunction, service the air cleaner regularly. Service more frequently when operating the pump in extremely dusty areas. AWARNING Never use gasoline or low flash point solvents for cleaning. They are flammable and explosive under certain conditions. CAUTION: Never run the pump without the air cleaner. Rapid engine wear will result from contaminants such as dust and dirt being drawn into the engine. 1. Unscrew the wing nut, remove the air cleaner cover and remove the element. 2. Wash the element in a non-flammable or high flash point solvent and dry it thoroughly. 3. Soak the element in clean engine oil and squeeze out the excess oil. 4. Reinstall the air cleaner element and the cover. AIR CLEANER COVER AIR CLEANER ELEMENT 3. Spark plug service Recommended spark plug: BPR6ES(NGK) W20EPR-U(DENSO) To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. 1. Disconnect the spark plug cap and then remove the spark plug with the spark plug wrench. AWARNING If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler. SPARK PLUG CAP 2. Visually inspect the spark plug. Discard the spark plug if there is apparent wear, or if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused. 3. Measure the plug gap with a feeler gauge. Correct as necessary by bending the side electrode. The gap should be: 0.7—0.8 mm (0.028 — 0.031 in) 0.7—0.8 mm (0.028 — 0.031 in) 24 4. Check that the spark plug washer is in good condition, and thread the spark plug in by hand to prevent cross-threading. NOTE: If installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. If reinstalling a used spark plug, tighten 1/8 — 1/4 turn after the spark plug seats to compress the washer. CAUTION: The spark plug must be securely tightened. An improperly tightened spark plug can become very hot and may cause engine damage. 25 4. Spark arrester maintenance (optional part) In Europe and other countries where the machinery directive 2006/42/ EC is enforced, this cleaning should be done by your servicing dealer. AWARNING 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. Allow it to cool before proceeding. 1.Remove the two 8 mm nuts, MUFFLER |, CHEWS TAPPING and remove the muffler. 2. Remove the four 5 mm self- tapping screws, and remove the muffler protector from the muffler. 3.Remove the 4 mm screw from the spark arrester, and MUFFLER remove the spark arrester from the muffler. 4.Use a brush to remove carbon deposits from the spark arrester screen. Be careful to avoid damaging the screen. 8 mm NUTS SPARK ARRESTER SCREEN CAUTION: The spark arrester must be serviced every 100 hours to maintain its efficiency. NOTE: The spark arrester must be free of breaks and holes. Replace it if necessary. 5.Install the spark arrester, muffler protector, and muffler in the reverse order of disassembly. : 26 ‘9. TRANSPORTING/STORAGE AWARNING * To avoid severe burns or fire hazards, let the engine cool before transporting the pump or storing it indoors. * When transporting the pump, turn the fuel valve to the OFF position, and keep the pump level to prevent fuel spillage. Spilled fuel or fuel vapor may ignite. Before storing the pump for an extended period; 1. Be sure the storage area is free of excessive humidity and dust. 2. Clean the pump interior..... Sediment will settle in the pump if it has been used in muddy or sandy water, water containing heavy debris. Pump clean water through the pump before shutting down or impeller may be damaged when restarting. After flushing, remove the pump drain plug, drain as much water as possible from the pump housing and reinstall the plug. 3. Drain the fuel..... a. With the fuel valve OFF, remove the drain screw from carburetor float bowl and drain the carburetor. Drain the gasoline into a suitable container. | b. Turn the fuel valve ON and drain the gasoline in the fuel tank into the suitable container. c. Reinstall the carburetor drain screw. DRAIN SCREW > PUMP DRAIN PLUG 27 4. Change the engine oil. 5.Remove the spark plug, and pour about a tablespoon of clean engine oil into the cylinder. Crank the engine several revolutions to distribute the oil, then reinstall the spark plug. 6. Pull the starter grip until resistance is felt. Continue pulling until the notch on the starter pulley aligns with the hole on the recoil starter (see illustration below). At this point, the intake and exhaust valves are closed, and this will help to protect the engine from internal corrosion. Se — > Align the mark on the starter pulley : with the hole at the top of recoil ; > starter. / N Y ÓN ~N/7 =) [RA 7 SN ~ = y — = CC NS < Gl. AS SS 7.Cover the pump to keep out dust. 28 10. TROUBLESHOOTING When the engine will not start: 1.1s there enough fuel? 2.1s the fuel valve ON? 3.15 gasoline reaching the carburetor? To check, loosen the drain screw with the fuel valve ON. AWARNING If any fuel is spilled, make sure the area is dry before starting the engine. Spilled fuel or fuel vapor may ignite. \ 4.1s the engine switch ON? 5. Is there enough oil in the engine? 6.1s the spark plug in good condition? Remove and inspect the spark plug. Clean, readjust gap and dry the spark plug. Replace it if necessary. 7.1f the engine still does not start, take the pump to an authorized Honda dealer. 29 When the pump cannot pump the water: 1.1s the pump fully primed? 2. Is the strainer clogged? 3. Are the hose bands installed securely? 4. Are the hoses damaged? 5. 1s the suction head too high? 6.1f the pump still does not operate, take the pump to an authorized Honda dealer. STRAINER HOSE BAND DISCHARGE HOSE 30 11. SPECIFICATIONS Model WB20XT WB30XT Power product description code WABT WACT Length 455 mm (17.9 in) 510 mm (20.1 in) Width 365 mm (14.4 in) 385 mm (15.2 in) Height 420 mm (16.5 in) 455 mm (17.9 in) Dry mass [weight] 21 kg (46 Ibs) 27 kg (60 Ibs) Engine | WB20XT WB30XT Model GX120T1 GX160T1 Engine type 4-stroke, over head valve, 1 cylinder Displacement 118 cm8 (7.2 cu-in) 163 cm? (9.9 cu-in) 5.4 Ibf-ft/2,500 rom) [Bore X Stroke] 60.0 x 42.0 mm 68.0 x 45.0 mm (2.4 X 1.7 in) (2.7 x 1.8 in) Fuel tank capacity 1.9L 3.1L (0.50 US gal, (0.82 US gal, 0.42 Imp gal) 0.68 Imp gal) Engine Net power 2.6 kW/3,600 rpm 3.6 kW/3,600 rpm (in accordance with SAE J1349°) (3.5 PS/3,600 rpm) (4.9 PS/3,600 rpm) Engine Max. Net torque 7.3 N-m/2,500 rpm 10.3 N-m/2,500 rpm (in accordance with SAE J1349*) | (0.74 kgf-m/2,500 rpm, | (1.05 kgf-m/2,500 rpm, 7.6 Ibf-ft/2,500 rom) Cooling system Forced air Ignition system Ig Transistor magneto PTO shaft rotation Counterclockwise * The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3,600 rom (Engine Net Power) and at 2,500 rpm (Engine Max. Net Torque). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance, and other variables. 31 Pump Model WB20XT WB30XT Suction port diameter 50 mm (2.0 in) 80 mm (3.1 in) Discharge port diameter 50 mm (2.0 in) 80 mm (3.1 in) Max. idling speed 3,900 + 100 rpm 3,900 = 100 rpm Total head 32 m (105 ft) 28 m (92 ft) Suction head 8 m (26.3 ft) 8 m (26.3 ft) Capacity 600 L/min 1,100 L/min (1568.5 US gal/min, (280.6 US gal/min, 132.0 Imp gal/min) 242.0 Imp gal/min) Continuous running time 1 h 54 min 2 h 6 min Noise Model WB20XT WB30XT Sound pressure level at the workstation 85 dB (A) 88 dB (A) (EN809: 1998/AC: 2001) Uncertainty 2 dB (A) 2 dB (A) Measured sound power level 99 dB (A) 104 dB (A) (2000/14/EC, 2005/88/EC) Uncertainty 2 dB (A) 2 dB (A) Guaranteed sound power level 101 dB (A) 106 dB (A) (2000/14/EC, 2005/88/EC) 32
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Key Features
- 4-stroke engine
- Self-priming
- Adjustable pump output
- Oil alert system (where equipped)
- Easy to start and operate
- Lightweight and portable
- Durable construction
Frequently Answers and Questions
How do I check the engine oil level?
To check the oil level, remove the oil filler cap/dipstick and wipe it clean. Insert the filler cap/dipstick into the oil filler neck, but do not screw it in. If the level is low, fill to the top of the oil filler neck with the recommended oil.
How do I prime the pump?
The pump chamber should be primed with full of water before operating. Never attempt to operate the pump without priming water, or the pump will overheat. Extended dry operation will destroy the pump seal.
What type of gasoline should I use?
Use automotive unleaded gasoline with a Research Octane Number of 91 or higher (a Pump Octane Number of 86 or higher). Never use stale or contaminated gasoline or an oil/gasoline mixture.
How do I change the engine oil?
Drain the oil while the engine is still warm to assure rapid and complete draining. Remove the oil filler cap/dipstick and the drain plug, then drain the oil. Install the drain plug securely using a new sealing washer. Refill with the recommended oil to the specified level.
How do I clean the air cleaner?
Wash the element in a non-flammable or high flash point solvent and dry it thoroughly. Soak the element in clean engine oil and squeeze out the excess oil. Reinstall the air cleaner element and the cover.