EW2051H - Pump MAKITA - Free user manual and instructions

USER MANUAL EW2051H MAKITA

FOREWORD Thank you very much for purchasing a MAKITA PUMP.This manual covers operation and maintenance of MAKITA PUMP.All information in this publication is based on the latest product information available at the time of approval for printing. Please read this manual carefully before operating. Please take a moment to familiarize yourself with the proper operation and maintenance procedures in order to maximize the safe and efcient use of this product.Keep this owner’s manual at hand, so that you can refer to it at any time.Due to constant efforts to improve our products, certain procedures and specications are subjected to change without notice. When ordering spare parts, always give us the MODEL, PRODUCTION NUMBER and SERIAL NUMBER of your pump.Please ll in the following blanks after checking the production number on your pump. (Location of label is different depending on the product specication.) PROD No. SER No. PROD No. / SER No.(Label)SER No. (Stamping) Please refer to the illustrations on the back page of the front cover for Fig. to indicated in the sentence. NOTE CONTENTS Page

English (Original instructions)2

1. SAFETY PRECAUTIONS

Please make sure you review each precaution carefully. Pay special attention to statement preceded by the following words. “WARNING” indicates a strong possibility of severe personal injury or loss of life if instructions are not followed. “CAUTION” indicates a possibility of personal injury or equipment damage if instructions are not followed. : EXHAUST PRECAUTIONS

Never inhale exhaust gasses. They contain carbon monoxide, a colorless, odorless and extremely dangerous gas which can cause unconsciousness or death.

Never operate the pump indoors or in a poorly ventilated area, such as tunnel, cave, etc.

Exercise extreme care when operating the pump near people or animals.

Keep the exhaust pipe free of foreign objects. : REFUELING PRECAUTIONS

Fuel is extremely ammable and its vapors can explode if ignited.

Do not refuel indoors or in a poorly ventilated area.

Be sure to stop the pump prior to refueling.

Do not remove fuel tank cap nor ll fuel tank while engine is hot or running. Allow engine to cool at least 2 minutes before refueling.

Do not overll the fuel tank.

If fuel is spilt, wipe it away carefully and wait until the fuel has dried before starting the engine.

After refueling, make sure that the fuel cap is secured to prevent spillage. : FIRE PREVENTION

Do not operate the pump while smoking or near an open ame.

Do not use around dry bush, twigs, cloth rags, or other ammable materials.

Keep cooling air intake (recoil starter area) and mufer side of the engine at least 1 meter (3 feet) away from buildings, obstructions and other burnable objects.

Keep the pump away from ammables and other hazardous materials (trash, rags, lubricants, explosives).

Do not allow drunk driving.

Be careful of hot parts. The mufer and other engine parts become very hot while the pump is running or just after it has stopped. Operate the pump in a safe area and keep children away from the running pump. WARNING CAUTION WARNING WARNING WARNING WARNING

Do not touch the ignition cable when starting and operating the engine.

Operate the pump on a stable, level surface. If the engine is tilted, fuel spillage may result. NOTE Operating the pump at a steep incline may cause seizure due to improper lubrication even with a maximum oil level.

Do not transport the pump with fuel in tank or with fuel strainer valve open.

Keep the unit dry (do not operate it in rainy conditions). : PRE-OPERATION CHECKS

Carefully check fuel hoses and joints for looseness and fuel leakage. Leaked fuel creates a potentially dangerous situation.

Check bolts and nuts for looseness. A loose bolt or nut may cause serious engine trouble.

Check the engine oil and rell if necessary.

Check the fuel level and rell if necessary. Take care not to overll the tank.

Keep cylinder ns and recoil starter free of dirt, grass and other debris.

Wear snug tting working clothes when operating the engine. Loose aprons, towels, belt, etc., may be caught in the engine or drive train, causing a dangerous situation.

Do not allow the delivery hose to be trampled over by a vehicle’ s wheel, or do not close the delivery valve abruptly otherwise a water-hammer occurs which may result heavy damage to the pump. Trampling over the delivery hose Abrupt closing of delivery valve WARNING CAUTION4 SYMBOLS Read manual. Shut off fuel valve when the engine is not in use. Stay clear of the hot surface. Check for leakage from hose and ttings. Exhaust gas is poisonous. Do not operate in an unventilated room or enclosed area. Fire, open ame and smoking prohibited. Stop the engine before refueling. HOT, avoid touching the hot area. On (Run) Engine start (Electric start) Fuel (gasoline) Primer Off (Stop) Engine stop

(See Fig. ) Please refer to the illustrations on the back page of the front cover or back cover for Fig. to indicated in the sentence. Plug (drain) Suction Delivery Frame Plug (priming) Mufer Spark plug Oil ller (with oil guage) Fuel tank Casing cover Drain plug (at two places) Stop Switch Recoil starter Recoil Starter handle Fuel valve Chocke lever Air cleaner Speed control lever Strainer Hose coupling Hose band Tools Instruction for use (This publication) Hexagon wrench (Semi trash pump only) NOTE5

Use a reinforced-wall or wire braided hose to prevent suction collapse. Since the pump self-priming time is directly proportional to hose length, a short hose is recommended. CAUTION Always use a strainer with the suction hose. Gravel or debris sucked into the pump will cause serious damage to the impeller and the pump casing.

2. CONNECT DELIVERY HOSE (See Fig. - )

When using a fabric hose, always use a hose band to prevent the hose from disconnecting under high pressure.

3. CHECK ENGINE OIL (See Fig. - )

Before checking or relling engine oil, be sure the engine is located on stable, level surface and stopped. Do not screw the oil gauge into the oil ller neck to check oil level. If the oil level is low, rell to the upper level with the following recommended oil. Use 4-stroke automotive detergent oil of API service class SE or higher grade (SG, SH or SJ is recommended). Select the viscosity based on the air temperature at the time of operation as shown in the table.(See Fig. Explanation of Fig. - Oil Gauge Upper Level Lower LevelModel Oil capacityEW2050HEW3050HEW2051HEW3051H0.6 L

4. CHECK FUEL (See Fig. - )

WARNING ■Do not refuel while smoking, near an open ame or other such potential re hazards. Otherwise re accident may occur. ■Remove the statistic electricity from your body before relling the gasoline.Sparking from electrostatic discharge may cause the ignition to the vaporized fuel (gasoline) resulting burns. Static electricity can be discharged from the body by touching by hand the metal parts of the unit and the fuel dispensing pump. NOTE

THIS ENGINE IS CERTIFIED TO OPERATE

ON AUTOMOTIVE UNLEADED GASOLINE. Stop the engine and open the cap. Use automotive unleaded gasoline only. ● Unleaded regular/premium or reformulated gasoline containing no more than 10% Ethanol (E10), or 15% MTBE may also be used. ● Never use gasoline containing ethanol exceeding 10%, or MTBE exceeding 15% because engine or fuel system damage could result. ● Never use stale or contaminated gasoline. ● Use of these non-recommended fuels may result in reduced performance and/or denial of warranty.Fuel Tank CapacityModelFuel Tank capacity Litre (U.S.gal)EW2050HEW3050HEW2051HEW3051H3.2 (0.85) Close the fuel valve before lling the fuel tank. Do not ll above the top of the fuel lter screen (marked ), or the fuel may overow when it heats up later and expands.Explanation of Fig. - Maximum Fuel level When lling the fuel tank, always use the fuel lter screen.

Reattach the fuel cap by turning clockwise until reaching the physical stop (about one quarter turn). Do not attempt to turn past the physical stop or the fuel cap may be damaged. Wipe off any spilled fuel before starting the engine. (See Fig. - )6

5. CHECK PRIMING WATER (See Fig. - )

It is recommended that the water chamber of pump casing should be primed with full of water before operating. WARNING Never attempt to operate the pump without priming water or the pump will overheat. Extended dry operation will destroy the mechanical seal.If the unit has been operated dry, stop the engine immediately and allow the pump to cool before adding priming water.

4. OPERATING YOUR PUMP

(1) Open the fuel valve. (See Fig. - )(2) Turn the STOP SWITCH to the position “ I ” (ON).(See Fig. (3) Set the speed control lever 1/3 of the way towards the high speed position. (See Fig. (4) Close the choke lever. (See Fig.

If the engine is cold or the ambient temperature is low, close the choke lever fully. If the engine is warm or the ambient temperature is high, open the choke lever half-way, or keep it fully open.(5) Pull the starter handle slowly until resistance is felt. This is the “compression” point. Return the handle to its original position and pull swiftly. Do not pull out the rope all the way. After starting the engine, allow the starter handle to return to its original position while still holding the handle. (See Fig.

(6) After starting the engine, gradually open choke by turning the choke lever and nally keep it fully opened. Do not fully open the choke lever immediately when the engine is cold or the ambient temperature is low, because the engine may stop. (See Fig.

(1) After the engine starts, set the speed control lever at the low speed position (L) and warm it up without load for a few minutes. (See Fig. (2) Gradually move the speed control lever toward the high speed position (H) and set it at the required engine speed. (See Fig.

Whenever high speed operation is not required, slow the engine down (idle) by moving the speed control lever to save fuel and extend engine life.3. STOPPING (See Fig. )(1) Set the speed control lever at the low speed position and allow the engine to run at low speed for 1 or 2 minutes before stopping. (See Fig. (2) Turn the STOP SWITCH counterclockwise to the position “” (OFF). (See Fig. - )(3) Close the fuel valve. (See Fig. (4) Pull the starter handle slowly and return the handle to its original position when resistance is felt. This operation is necessary to prevent outside moist air from intruding into the combustion chamber.(See Fig. STOPPING ENGINE WITH THE FUEL VALVEClose the fuel valve and wait for a while until the engine stops. Avoid to let the fuel remain in the carburetor over long periods, or the passages of the carburetor may become clogged with impurities, and malfunctions may result.

Before running the engine, check the following service items. Loose or broken bolts and nuts Clean air cleaner element Enough clean engine oil Leakage of gasoline and engine oil Enough gasoline Safe surroundings Check the priming water Excessive vibration, noise7

2. PERIODIC INSPECTION

Periodic maintenance is vital to the safe and efcient operation of your pump.Check the table below for periodic maintenance intervals.The below chart is based on the normal product operation schedule. CAUTION Replace rubber pipes for fuel passage every two years. If fuel leakage is found, replace the pipe immediately. Periodic Maintenance Schedule tableMaintenance Items Every 8 hours(Daily)Every 50 hours(Weekly)Every 200 hours(Monthly)Every300 hoursEvery500 hoursEvery1000 hoursCLEAN PUMP SET AND CHECK BOLTS AND NUTS (Daily)CHECK FOR LEAKAGE FROM HOSES AND FITTING (Daily)CHECK AND REFILL ENGINE OIL (Rell daily up to upper level)CHANGE ENGINE OIL (Initial 20 hours) (Every 100 hours)CLEAN SPARK PLUG (Every 100 hours)CLEAN AIR CLEANER

REMOVE THE PUMP CASING AND CLEAN

CHECK AND ADJUST VALVE CLEARANCE

CLEAN AND ADJUST CARBURETOR

(Every 2 years)OVERHAUL ENGINE IF NECESSARY

(See Fig. - ) (1) Clean off carbon deposits on the spark plug electrode using a plug cleaner or wire brush.(2) Check electrode gap. The gap should be 0.6 mm to 0.7 mm (0.02 inch.-0.03 inch.).Adjust the gap, if necessary, by carefully bending the side electrode.Recommended Spark Plug:E6RC (TORCH) or BR-6HS (NGK)8

4. ENGINE OIL CHANGE (See Fig. - , )

Initial oil change : After 20 hours of operation Thereafter : Every 100 hours of operation (1) When changing oil, stop the engine and loosen the drain plug. Drain the used oil while the engine is warm. Warm oil drains quickly and completely. CAUTION To prevent injury, pay attention to the hot oil. Make sure the fuel cap is tightly secured to avoid spillage. (2) Re-install the drain plug before relling oil. Model Oil capacity

EW2050HEW3050HEW2051HEW3051H0.6 L

(3) Refer to page 5 for the recommended oil.

Always use the best grade and clean oil. Contaminated oil, poor quality oil and shortage of oil cause damage to engine or shorten the engine life.

5. CLEANING FUEL CUP (See Fig. - )

WARNING Flame Prohibited WARNING Remove the statistic electricity from your body before relling the gasoline. Sparking from electrostatic discharge may cause the ignition to the vaporized fuel (gasoline) resulting burns. Static electricity can be discharged from the body by touching by hand the metal parts of the unit. (1) Inspect fuel cup for water and dirt. (See Fig.

(2) To remove water and dirt, close the fuel valve and remove the fuel cup. (3) After removing dirt and water, wash the fuel cup with kerosene or gasoline. Reinstall securely to prevent leakage.

6. CLEANING AIR CLEANER

(See Fig. - ) A dirty air cleaner element will cause starting difculty, power loss, engine malfunctions, and shorten engine life extremely. Always keep the air cleaner element clean. WARNING Flame Prohibited

Urethane Foam cleaning (See Fig.

Wash and clean the urethane foam with detergent. After cleaning, dry it. Clean the urethane foam element every 50 hours.

Second element (See Fig.

Clean by tapping gently to remove dirt and blow off dust. Never use oil. Clean the paper element every 50 hours of operation, and replace element set every 200 hours. NOTE Clean and replace air cleaner elements more often when operating in dusty environments. Replace the element in case that dirt or dust can not be removed and/or that the element is deformed or deteriorated.

7. FUEL HOSE REPLACEMENT

Take extreme caution when replacing fuel hose; gasoline is extremely ammable.

Remove the statistic electricity from your body before relling the gasoline. Sparking from electrostatic discharge may cause the ignition to the vaporized fuel (gasoline) resulting burns. Static electricity can be discharged from the body by touching by hand the metal parts of the unit. Replace the fuel hose every 1,000 hours or every 2 years. If fuel leaks from fuel hose, replace the fuel hose immediately.

8. CHECKING BOLTS, NUTS AND SCREWS

Retighten loose bolts and nuts.

Check for fuel and oil leaks.

Replace damaged parts with new ones.9

9. CLEANING PUMP INSIDE

(See Fig. - – ) (Except EW2050H, EW3050H) If the inside of the pump is plugged up with small rocks or if the inside of the pump has to be cleaned, you can clean the inside of the pump by removing the casing cover using the Hexagon wrench that comes with the pump.The accessory Hexagon wrench (8 mm) is attached to the upper part of the casing. (See Fig. (1) Removal of the casing cover (See Fig. Remove the 4 socket bolts.(2) Cleaning the inside of the pump (See Fig. After removing the pebbles and dirt from the inside of the pump, rinse it out with clean water. Explanation of Fig. - Casing cover O-RingMake sure not to damage the O-ring as this will cause water leakage.If the O-ring is deteriorated or damaged, replace it with a new one.(3) Reattaching the casing cover (See Fig. Tighten the 4 socket bolts.

Drain all water from the drain plug. CAUTION When retightening drain plug, be sure to clean the drain plug and the thread of casing. Otherwise, the thread may be damaged.

2. DISCONNECT THE DELIVERY HOSE

Tilt the pump and drain all water from delivery hole. Severe damage to pump may result if water freezes in the pumping chamber.

(See Fig. - ) WARNING Flame Prohibited If you do not use the engine more than 1 month, discharge fuel to prevent gum in the fuel system and carburetor parts. WARNING

Remove the statistic electricity from your body before relling the gasoline. Sparking from electrostatic discharge may cause the ignition to the vaporized fuel (gasoline) resulting burns. Static electricity can be discharged from the body by touching by hand the metal parts of the unit.

Always store/carry the fuel (gasoline) with metallic portable tank to prevent re.

Remove the strainer cup, place the strainer over a container and open the strainer valve to discharge fuel from the fuel tank.

Remove the drain screw of the carburetor oat chamber and discharge fuel.

4. ENGINE OIL (See Fig. - )

Change the engine oil with fresh oil. Remove the spark plug, pour about 5 cc of engine oil into the cylinder, slowly pull the starter handle of the recoil starter 2 or 3 times, and reinstall the spark plug.

Slowly pull the recoil starter handle until resistance is felt and leave it in that position. Clean the pump thoroughly with an oiled cloth, put the cover on, and store the pump indoors in a well ventilated, low humidity area.

The engine will stop automatically when the oil level falls below the safety limit. The engine cannot be started unless the level is raised above the prescribed limit. (See Fig.

(1) Fill the crankcase with oil up to the proper level.(2) As for restarting and operating the engine, refer to section “4. OPERATING YOUR PUMP” on page 6. Check the wire connector from the engine. It must be connected securely to the wire from oil sensor. When selecting the engine oil, refer to page 5 for the recommended oil.10

Sucking air at suction side.(Check piping at suction side.) Drop off engine output.(Consult your nearest dealer.) Breakage of mechanical seal.(Consult your nearest dealer.) High suction lift (Lower.) Suction hose is too long or thin.(Use a thick hose in minimum length.) Leak of water from water passage. (Stop leaking.) Clogging of foreign substance in impeller.(Disassemble and clean.) Wear of impeller. Strainer is clogged. (Clean.) Engine speed is too low.(Consult your nearest dealer.)

3. PUMP DOES NOT SELFPRIME.

Suction of air at suction side.(Check piping at suction side.) Insufcient priming water inside pump casing.(Prime fully.) Imperfect tightening of drain plug.(Tighten the plugs completely.) Engine speed is too low.(Consult your nearest dealer.) Sucking air from mechanical seal.(Consult your nearest dealer.)

Hose may be kinked or discharge end may be blocked or clogged. (Straighten or clean.)

5. PUMP SUDDENLY STOPS.

Solid object preventing pump-rod from completing stroke. (Disassemble and clean.)

6. WHEN ENGINE DOES NOT START:

Perform the following checks before you take the pump to your Makita dealer. If you still have trouble after completing the checks, take the pump to your nearest Makita dealer. (1) Is there a strong spark across the electrode?

Is the stop switch at position “ I ” (ON)? Remove and inspect the spark plug.If the electrode is fouled, clean or replace it with new one. Remove the spark plug and connect it to the plug cap. Pull the starter handle while grounding spark plug against engine body. Try with a new spark plug if the spark is weak or there is no spark.The ignition system is faulty if there is no spark with a new spark plug. WARNING

Wipe out spilled fuel carefully before testing. Place spark plug as far away from spark plug hole as possible.

Do not hold spark plug by hand while pulling recoil starter. NOTE The engine with oil sensor will stop automatically when the oil level falls below the prescribed limit.Unless the oil level is raised above the prescribed limit, the engine will stop immediately after starting. (2) Is there enough compression? Pull the starter handle slowly and check if resistance is felt.If little force is required to pull the starter handle, check if the spark plug is tightened rmly. If the spark plug is loose, tighten it. (3) Is the spark plug wet with gasoline?

Is the fuel valve opened? Choke (close choke lever) and pull the starter handle ve or six times. Remove the plug and check if its electrode is wet. If the electrode is wet, fuel is well supplied to your engine. When the electrode is dry, check where the fuel stops. (Check the fuel intake of the carburetor.) In case the engine does not start with well supplied fuel, try using fresh fuel.11

Suction Head m 8.0 Axle Seal Material (Mechanical Seal) Ceramic - carbon Silicon - carbide ENGINE Model EX16 EX17 EX16 EX17 Type Air-Cooled, 4-cycle, OHC, Gasoline Engine Lubricant Automotive detergent oil (API / SE or higher grade, SG, SH or SJ is recommended. SAE / 10W-30 etc.) Oil Capacity Liter 0.6 Fuel Automotive unleaded gasoline Fuel Tank Capacity Liter 3.2 Spark plug TORCH E6RC or NGK BR-6HS Starting system Recoil starter Dimensioms (L × W × H) mm 527 × 368 × 417 Net Weight kg 24.9 26.1 24.9 26.1 Standard accessories Engine tool kit (1 set), Strainer (1 pc.), Hose coupling (2 set), Hose band (3 pcs.), Instruction for use (1 pc.) Engine tool kit (1 set), Strainer (1 pc.), Hose coupling (2 set), Hose band (3 pcs.), Instruction for use (1 pc.), Hexagon wrench (1 pc.)

• Specications are subject to change without notice.

10. EC DECLARATION OF CONFORMITY

For European countries only The EC declaration of conformity is included as Annex A to this instruction manual.12 Noise

1. Sound pressure level at workstation. (2006/42/EC)

Brand Name Sound pressure level The operating condition of the machinery during measurement and the measuring method EW2050H 86 dB(A) Operating condition: @ 75% load Measuring method: At a distance of 1m from the surface of the machinery and at a height of 1.6m from the oor. And the sound pressure value of the direction used as the maximum sound pressure is shown. EW3050H 89 dB(A) EW2051H 87 dB(A) EW3051H 90 dB(A) MicrophoneThe side that produced the highest sound pressure level 1.0m 1.6m PUMP

: RUHUNI NGA GODITJA E UJIT