Instruction/ maintenance manual of the product WT20XK4AC Honda Power Equipment
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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 specifi cations included in this pub lication were in effect at the time of approval fo r printing.
1 INTRODUCT ION Congratulations on your selection of a Honda water pump. We are certain you will be pleased with your purchase o f one of the f inest water pumps on the market. We want to help you get the be st results from your new water pump and to operate it safely.
2 INTRODUCTION A FEW WORDS ABOUT SAFETY Safety Labels Safety Messages Safety Headings Safety Section Instructio ns Your safety and the safety of others are very important.
3 CON TENTS .......................................................................................... PUMP SAFETY . 5 ........................................................................ CONTROLS & FEATURES . 8 ...............................
4 CONTENTS SERVICING YOUR PUMP (continued) ................................................................................................ STORAGE . 41 ..................................................................................... TRANSPORTING .
5 IMPORTANT SAFETY INFORMATION Refuel With Care Pump Operati on Operator Responsibility PUMP SAFETY 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.
6 PUMP SAFETY Hot Exhaust Carbon Monoxide Hazard The muffler becomes very hot during operation and rem ains 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.
7 PUMP SAFETY SAFETY LABEL LOCATIONS PUMP CAUTION LABEL The labels shown here contain important safety information. Please read them carefully. These labels are considered permanent parts of your pump. If a label co mes off or beco mes hard to read, contact an authorized Honda servicing dealer for a replacem ent.
＜＞ 8 CONTROLS & FEA TURES COMPONENT & CONTROL LOCATIONS WT20X THROTTLE LEVER CHOKE LEVER STARTER GRIP FUEL VALVE LEVER IGNITION SWITCH OIL FILLER CAP/DIPST ICK PRIMING WATER FILLE R CAP SU.
9 CONTROLS & FEATURES CONTROLS Fuel Valve Lever Ignition Switch ON ON O O F F F F FUEL VALVE LEVER O O F F F F IGNITION SWITCH 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.
10 CONTROLS & FEATURES Choke Lever Throttle Lever C C L L O O S S E E D D SLOW THROTTLE LEVER CHOKE LEVER O O P P E E N N F F A A S S T T The choke lever opens and closes the choke valve in the carburetor. The CLOSED pos ition enriche s the fuel mixture for starting a cold engine.
11 CONTROLS & FEATURES Recoil Starte r Grip Oil Alert System FEATURES STARTER GRIP Pulling the starter grip op erates the rec oil starter to crank th e engine for starting. If the eng ine stops and will not resta rt, check the engine oil le vel (page ) before troubleshooting in other ar eas.
12 BEFORE OPERAT ION ARE YOU READY TO GET STARTED? Knowledge Your safety is your responsibility. A little time spent in preparation will significantly reduce your risk of injury. Read and understand this manual. Know what the controls do and how to operate them.
13 BEFORE OPERATION IS YOUR PUMP READY TO GO? Check the General Condition of the Pump For your safety, and to maximize the service life of your equipment, it is very important to take a few m oments before you operate the pump to check its condition.
14 BEFORE OPERATION Check the Suction and Dischar ge Hoses Check the Engine Check the general conditi on of the hoses. Be s ure the hoses are in serviceable condition before connectin g them to the pump. Remember that the suction hose must be reinforced construction to prevent hose collapse.
15 OPERA TION SAFE OPERATING PRECAUTIONS To safely realize the full potential of this pump, you need a complete understanding of its op eration and a c ertain amount of practice with its controls. Before opera ting the pump for the first time, please review the IMPORTANT SAFETY INFORMATION on page and the chapter titled BEFORE OPERATION .
16 OPERATION PUMP PLACEMENT SUCTION HEAD DISCHARGE HEAD T T O O T T A A L L H H E E A A D D For best pump performance, place the pump near the water level, and use hoses that are no longer than necessary. That w ill enable the pump to produce the greatest output with the least self-priming time.
17 OPERATION SUCTION HOSE INSTALLATION HOSE CONNECTOR SUCTION HOSE HOSE CLAMP HOSE CLAMP RING SUCTION PORT STRAINER HOSE CLAMP HOSE CLAMP H H O O S S E E C C O O N N N N E E C C T T O O R R SUCTION HO.
18 OPERATION DISCHARGE HOSE INSTALLATION PRIMING THE PUMP HOSE CONNECTOR HOSE CLAMP DISCHARGE HOSE PRIMING WATER FILLE R CAP WATER Use a commercia lly available hose and hose connector, and clamp provided with the pump. It is best to use a short, large- diameter hose, because that will reduce fluid fric tion and improve pump performance.
19 OPERATION STARTING THE ENGINE F F U U E E L L V V A A L L V V E E L L E E V V E E R R CHOKE LEVER THROTTLE LEVER C C L L O O S S E E D D ON F F A A S S T T Move the fuel valve lever to the ON position. Move the throttle lever away from the SLOW position, about 1/ 3 of the way toward the FAST position.
20 OPERATION ON IGNITION SWITCH STARTER GRIP Direction to pull Turn the ignition switch to the ON position. Pull the starter grip lightly until you feel resistance, then pull briskly in the direction of the arrow as shown below. Return the starter grip gently.
21 OPERATION SETTING ENGINE SPEED CHOKE LEVER SLOW O O P P E E N N F F A A S S T T THROTTLE LEVER If the choke lever was moved to the CLOSED position to start the engine, gradually move it to the OPEN pos ition as the engine w arms up. After starting the engine, move the throttle lever to the FAST position for self-priming, and check pump output.
22 OPERATION STOPPING THE ENGINE THROTTLE LEVER SLOW IGNITION SWITCH O O F F F F To stop the engine in an emergency, simply turn the ignition switch to the OFF position. Under normal condi tions, use the foll owing procedure. Move the throttle lever to the SLOW position.
23 OPERATION FUEL VALVE LEVER O O F F F F Turn the fuel valve lever to the OFF position. After use, remove the pump dr ain plug (see page ), and drain the pump chamber. Remove the filler cap, and flush the pump chamber with clean, fre sh water. Allow the water t o drain from the pump chamber, then reinstall the filler cap and drain plug.
24 SERVICING YOUR P UMP THE IMPORTANCE OF MAINTENANCE Maintenance, replacement, or repair of emission control devices and systems may be performed by any engine repair establishment or individual, using parts that ar e ‘‘certified’’ to EPA st andards.
− − − 25 SERVICING YOUR PUMP MAINTENANCE SAFETY Safety Precautions Carbon monoxide poisoning from engine exhaust . Burns from h ot parts. Injury from moving part s. Some of the most important safety precautions follow. However, w e cannot warn you of every conceivable hazard that can ar ise in performing maintenance.
＊ ○ ○ ○ ○ ○＊ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ − − − − − − − − 26 SERVICING YOUR PUMP MAINTENANCE SCHEDULE ITEM REGULAR SERVICE PERIOD (3) Perform at every indicated month or operating hour interval, whichever comes first.
27 SERVICING YOUR PUMP REFUELING MAXIMUM FUEL LEVEL Remove the fuel tank cap and check the fuel level. If the fue l level is low, refuel in a well-ven tilated area with the engine stopped. If the engine has been running, allow it to cool f irst. Never refuel the engine inside a bu ilding where gasoline fumes c an reach flames or sparks.
28 SERVICING YOUR PUMP FUEL RECOMMENDATIONS Spilled fuel is not only a fire hazard, it causes environm ental damage. Wipe up spills immediately. Fuel can damage paint and plastic. Be careful not to spill fuel when filling your fuel tank. Damage c aused by spilled f uel is not covered under the Distributor’s Limited Warranty.
29 SERVICING YOUR PUMP ENGINE OIL LEVEL CHECK OIL FILLER CAP/DIPST ICK OIL FILLER NECK UPPER LIMIT Check the engine oil level with the engine stopped and in a level position. Remove the oil filler cap/ dipstick and wipe it clean. Inse rt and remove the dips tick witho ut screwing it int o the filler neck .
30 SERVICING YOUR PUMP ENGINE OIL CHANGE OIL LEVEL DRAIN PLUG OIL FILLER CAP/DIPST ICK Drain the used oil while the engine is warm. Warm oil drains quickly and completely. Place a suitable container below the engine to catch the used oil, then remove the oil filler cap/ dipstick and the drain plug.
31 SERVICING YOUR PUMP ENGINE OIL RECOMMENDATIONS AMBIENT TEMPERATUR E 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 indicated range.
32 SERVICING YOUR PUMP AIR FILTER INSPECTION WING NUT AIR FILTER AIR CLEANER COVER Unscrew the wing nut and remove the air cleaner cover. Check the air filter to be sure it is clean and in good condition. If the air fil ter is dirty, clean it as described on page .
33 SERVICING YOUR PUMP AIR FILTER CLEANING WING NUT WING NUT AIR CLEANER COVER PAPER FILTER ELEMENT FOAM FILTER ELEMENT A dirty air filter will restrict air flow to the carburetor, reducing engine performance. If you operate the pump in very dusty areas, clean the air filter more freque ntly than specif ied in the Maintenance Schedule (see page ).
34 SERVICING YOUR PUMP SEDIMENT CUP CLEANING SEDIMENT CUP Move the fuel valve lever to the OFF position, then remove the fuel sediment cup and O-ring. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel.
−− − − 35 SERVICING YOUR PUMP SPARK PLUG SERVICE SPARK PLUG WRENCH SPARK PLUG CAP 0.028 0.031 in (0.70 0.80 mm) In or der to se rvice t he spark plu g, you wi ll need a spa rk plug w rench (commercially available). Incorrect spar k plugs can cause engine damage.
− 36 SERVICING YOUR PUMP Attach the spark plug cap. A loose spark plug can overheat and damage t he engine. Overtightening the spark plug can damage the threads in the cylinder head. If installing a new spark plug, tighten 1/ 2 turn after the spark plug seats.
37 SERVICING YOUR PUMP SPARK ARRESTER SERVICE (optional equipment) WT20X MUFFLER MUFFLER PROTECTOR SPARK ARRESTER 4 mm SCREW 5 mm SCREW (4) Your engine is not factory-equipped with a spark arrester. In some areas, it is illegal to o perate a n engine without a spark a rrester.
38 SERVICING YOUR PUMP MUFFLER SPARK ARRESTER SPARK ARRESTER SCRE EN 4 mm SCREW 5 mm SCREW (2) 5 mm SCREW (4) SPARK ARRESTER 4m m SCREW (2) WT40X type uses two 4 mm screws. MUFFLER PROTECTOR WT30X and WT40X Install the spark arrester, muffler protector, and muffler in the reverse order of disassembly.
39 SERVICING YOUR PUMP PUMP CASING CLEANING Removal: WRENCH WRENCH DRAIN PLUG WRENCH KNOBS (4) KNOBS (4) PUMP CASING PUMP COVER VOLUTE CASE O-RING After each use, clean the inside of the pump casing using the following procedure: Remove the drain plug f rom the pump cover using the wrench to drain the water inside.
40 SERVICING YOUR PUMP Installation: VOLUTE CASE PUMP CASING PUMP COVER WRENCH DRAIN PLUG KNOBS (4) O-RING Install the drain plug in the pump cover . After tightening the pump cover knobs, check the pump cover and pump casing to ensure that t here is no water leakage.
41 STORAGE STORAGE PREPARATION Cleaning Proper storage preparation is essential for keeping your pump troublefree and looking good. The f ollowing steps will help to keep rust and corr osion from impairing your pump’s function and appearance, and will make the engine easier to start when you use the pump again.
42 STORAGE Fuel DRAIN PLUG Stop the engine, and allow it to cool. You can extend f uel storage life by add ing a fuel stabilizer that is formulated for that purpose, or you can avoid fuel deterioration problems by draining the fuel tank and carburetor .
43 STORAGE Adding a Fuel Stabilizer to Extend Fuel Storage Life FUEL VALVE LEVER O O F F F F When adding a fuel s tabilizer, fill the f uel tank with fresh gaso line. If only partially filled, ai r in the tank will promote f uel deterioration during storage.
44 STORAGE Draining the Fuel Tank and Carburet or DRAIN BOLT SEDIMENT CUP Place an approved gasoline container below the carburetor, and use a funnel to avoid spilling fuel. Remove the carburetor dr ain bolt and sediment cup, then move the fuel valve lever to the ON position.
− 45 STORAGE Engine Oil STORAGE PRECAUTIONS Align notch o n pulley with hole at t op of cover. Change the engine oil (see page ). Remove the spark plug (see page ). Pour a tablespoon (5 10 cc) of clean engine oil into the cylinder. Pull the starter gri p several times to distribute the oil i n the cylinder.
46 STORAGE REMOVAL FROM STORAGE Place the pump on a level surface. Tilting can cause fuel or oil leakage. With the engine and exhaust system cool, cover the pump to keep out dust. A hot engine and exhaust system can ig nite or melt some materials. Do not use s heet plastic as a dust cover.
47 TRANSP ORTING If the pump has been running, allow the engine to cool for at least 15 minutes before loading the pump on the transport vehicle. A hot engine and exhaust syste m can burn you and can ignite some materials. Keep the pump level when transporting to reduce the possibility of fuel leakage.
48 ENGINE TAKING CARE OF UNEXPECTED PROBLEMS Engine Wi ll Not S tar t Possi ble Ca use Corr ect ion Engine La cks Pow er Possi ble Ca use Corr ect ion Fuel valve OFF. Choke ope n. Igniti on switc h OFF . Out of fuel. Bad f uel; pump stor ed without tre ating or drai ning gas oline , or ref uel wi th bad gasolin e.
49 TAKING CARE OF UNEXPECTED PROBLEMS PUMP No Pump Out put Possi ble C ause Cor rec tion Low Pump Output Possi ble Ca use Corr ect ion Chec k pump chamb er. Chec k suc tion hose . Meas ure suc tion and disc harge he ad. Chec k engine . Chec k suc tion hose .
50 TECHNICAL & CONSUMER INFORMATION TECHNICAL INFORMATION Serial Number Location ENGINE SERIAL NUMBER FRAME SERIAL NUMBER Engine serial number: Record the frame serial number and the engine ser ial number in t he space below. You will need these serial numbers when or dering parts, and when making technical or w arranty inquiries (see page ).
51 TECHNICAL & CONSUMER INFORMATION Carburetor Modificati on for High Altitude Operation At high altitude, the standard carburetor air-fuel mixture will be too rich. Performance will decrease, and fuel consumption will increase. A very rich mixture will also foul the spark plug and cause hard starting.
52 TECHNICAL & CONSUMER INFORMATION Emission Control System Inform ation The U.S. and California Clean Air Acts Tampering and Altering Source of Emissions The combustion process produces car bon monoxide, oxides of nitrogen, and hydrocarbons.
53 TECHNICAL & CONSUMER INFORMATION Problems That May Affect Emissions Replacement Parts Maintenance If you are aware of any of the f ollowing symptoms, have your engine inspected and repaired by your servicing dealer. Hard starting or stalling after starting.
＋ − ×× − − ± ± × 54 TECHNICAL & CONSUMER INFORMATION Specifications Dimensions and weight Engine design and performance Tune up Pump WT20X 24.4 in (620 mm) 18.1 in (460 mm) 18.3 in (465 mm) GX160K1 4-stroke, overhead valve, s ingle cylinder 104 lbs (47 kg) Forced air Transistor magneto Counterclockwise 1,400 rpm 9.
× ± ± ×× − − ± 55 TECHNICAL & CONSUMER INFORMATION Dimensions and weight Engine design and performance Tune up Pump WT30X Length Width Height Dry mass [weight] Model Engine type Displace.
± ± ± ×× − − × 56 TECHNICAL & CONSUMER INFORMATION Dimensions and weight Engine design and performance Tune up Pump WT40X Spark plug gap Idle speed Valve clearance (cold) Other specifications 1,400 150 rpm 0.15 0.02 mm 0.20 0.02 mm No other adjustments needed.
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59 MEMO 07/05/29 13:28:49 31YG0600_060.
60 MEMO 07/05/29 13:28:51 31YG0600_061.
−− QUICK REFERENCE INFORMATION Unleaded gasoline with a pump octane rat ing of 8 6 or highe r ( p a g e2 8) SAE 10W-30, API SJ or later (or equi val ent) , for gener al use ( p a g e3 1) Check engine oil level. Check air filter. Change engine oil.
31YG0601.
An important point after buying a device Honda Power Equipment WT20XK4AC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Honda Power Equipment WT20XK4AC yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Honda Power Equipment WT20XK4AC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Honda Power Equipment WT20XK4AC you will learn all the available features of the product, as well as information on its operation. The information that you get Honda Power Equipment WT20XK4AC will certainly help you make a decision on the purchase.
If you already are a holder of Honda Power Equipment WT20XK4AC, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honda Power Equipment WT20XK4AC.
However, one of the most important roles played by the user manual is to help in solving problems with Honda Power Equipment WT20XK4AC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honda Power Equipment WT20XK4AC along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
