EW2051H - Water pump MAKITA - Free user manual and instructions

Product type	Self-priming water pump for semi-loaded water
Brand	Makita
Model	EW2051H
Suction diameter × discharge	50 × 50 mm
Total head	32 m
Max discharge flow rate	700 L/min
Suction height	8.0 m
Engine type	Air-cooled 4-stroke gasoline engine with overhead camshaft
Engine model	EX16
Fuel	Unleaded automotive gasoline (max 10% ethanol or 15% MTBE)
Fuel tank volume	3.2 L
Engine oil tank volume	0.6 L
Engine oil type	Detergent 4-stroke oil API SE or higher (SG, SH, SJ), viscosity according to temperature
Spark plug	TORCH E6RC or NGK BR-6HS
Starting system	Recoil starter
Dimensions (L × W × H)	527 × 368 × 417 mm
Net weight	24.9 kg
Mechanical seal material	Silicon carbide
Sound pressure level	87 dB(A)
Guaranteed sound power level	103 dB(A)
Included accessories	Engine tools, strainer, hose fittings (2 sets), hose clamps (3), hex wrench, instruction manual

Frequently Asked Questions - EW2051H MAKITA

What type of engine oil should I use for the Makita EW2051H pump?

Use a detergent four-stroke engine oil of class API SE or higher (SG, SH, SJ). The viscosity should be chosen according to ambient temperature (e.g., 10W-30). The oil volume is 0.6 liter.

What fuel can I use?

Use unleaded automotive gasoline. You can use gasoline containing up to 10% ethanol (E10) or 15% MTBE. Never use gasoline with more than 10% ethanol or containing methanol.

How to start the pump?

1) Open the fuel valve. 2) Set the on/off switch to I (on). 3) Set the throttle lever to 1/3 of the maximum position. 4) Close the cold start device if the engine is cold. 5) Pull the starter grip gently until you feel resistance, then pull sharply.

What to do if the pump does not prime?

Check: 1) The suction side seal (no air ingress). 2) The amount of priming water in the pump body (must be full). 3) Are the drain plugs tightened? 4) Is the engine speed sufficient? If the problem persists, contact a Makita dealer.

What are the oil change intervals?

Perform the first oil change after 20 hours of use, then every 100 hours thereafter. Drain the engine oil while warm for complete drainage.

How to clean the air filter?

Clean the urethane foam every 50 hours with detergent, rinse and dry. For the paper element, tap to remove dust and blow out. Replace the complete filter element every 200 hours or more often in dusty environments.

Can I use the pump without priming water?

No, never use the pump without priming water. This would cause overheating and damage the mechanical seal. Fill the pump body completely with water before starting.

What to do if the engine does not start?

Check: 1) Is the on/off switch set to I? 2) Is the spark from the plug strong? Clean or replace the plug. 3) Is the compression sufficient? 4) Is the spark plug wet with fuel? If fuel is present, try fresh fuel. Also check the oil level sensor (the engine stops if the level is low).

How to maintain the pump for long-term storage?

Drain the water, fuel and engine oil. Remove the spark plug, pour 5 cc of engine oil into the cylinder, pull the starter, then reinstall the spark plug. Clean the pump and store it in a dry, ventilated place.

What accessories are supplied with the pump?

Standard accessories include: engine tools (1 set), strainer (1), hose fittings (2 sets), hose clamps (3), instruction manual (1), and hexagon wrench (1).

USER MANUAL EW2051H MAKITA

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English (Original instructions)

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 efficient 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 specifications are subjected to change without notice.

When ordering spare parts, always give us the MODEL, PRODUCTION NUMBER and SERIAL NUMBER of your pump.

Please fill in the following blanks after checking the production number on your pump. (Location of label is different depending on the product specification.)

PROD No. SER No.

PROD No. / SER No. (Label) SER No. (Stamping)

CONTENTS

Page

1. SAFETY PRECAUTIONS 2

2. COMPONENTS....4

3. PRE-OPERATION FOR STARTING 5

4. OPERATING YOUR PUMP....6

5. MAINTENANCE 6

6. PREPARATIONS FOR STORAGE 9

7. OIL SENSOR INSTRUCTIONS....9

8. EASY TROUBLESHOOTING 10

9. SPECIFICATIONS....11

10. EC DECLARATION OF CONFORMITY ..... 11

NOTE

Please refer to the illustrations on the back page of the front cover for Fig. 1 to indicated in the sentence.

1. SAFETY PRECAUTIONS

Please make sure you review each precaution carefully.

Pay special attention to statement preceded by the following words.

WARNING

"WARNING" indicates a strong possibility of severe personal injury or loss of life if instructions are not followed.

CAUTION

"CAUTION" indicates a possibility of personal injury or equipment damage if instructions are not followed.

WARNING : 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.

WARNING : REFUELING PRECAUTIONS

■ Fuel is extremely flammable 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 fill fuel tank while engine is hot or running. Allow engine to cool at least 2 minutes before refueling.
■ Do not overfill 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.

WARNING : FIRE PREVENTION

■ Do not operate the pump while smoking or near an open flame.
■ Do not use around dry bush, twigs, cloth rags, or other flammable materials.
- Keep cooling air intake (recoil starter area) and muffler side of the engine at least 1 meter (3 feet) away from buildings, obstructions and other burnable objects.
- Keep the pump away from flammables and other hazardous materials (trash, rags, lubricants, explosives).

WARNING : OTHER SAFETY PRECAUTIONS

■ Do not allow drunk driving.
■ Be careful of hot parts.
The muffler 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.

Illustration of a child inside a building with smoke and dust clouds (no text or symbols)

Illustration of a person operating a small wheeled robot with wheels, surrounded by geometric patterns (no text or symbols)

Illustration of a person washing clothes next to a machine (no text or symbols visible)

1m 1m

■ 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).

WARNING : 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 refill if necessary.
■ Check the fuel level and refill if necessary. Take care not to overfill the tank.
- Keep cylinder fins and recoil starter free of dirt, grass and other debris.
■ Wear snug fitting working clothes when operating the engine. Loose aprons, towels, belt, etc., may be caught in the engine or drive train, causing a dangerous situation.

CAUTION : BEWARE OF WATER-HAMMERING

- 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 Abru closing of delivery valve

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 fittings.
	Exhaust gas is poisonous.Do not operate in an unventilated room or enclosed area.		Fire, open flame and smoking prohibited.
	Stop the engine before refueling.		HOT, avoid touching the hot area.

	On (Run)		Engine start(Electric start)		Fuel (gasoline) Primer
) Engine stop					Fuel (diesel) Push primer
il Cold engine Fuel shut-off				[008X]		Do not push primer
Add oil Warm engine					Fuel systemfailure / malfunction	2X	Two times
			Electrical preheat(Low temperature start aid)	[264H]	Choke
[KKSY] position					Plus ;positive polarity
position					Minus ;negative polarity

2. COMPONENTS

(See Fig.)

NOTE

Please refer to the illustrations on the back page of the front cover or back cover for Fig. 1 to 8 indicated in the sentence.

1 Plug (drain)
② Suction
3 Delivery
4 Frame
⑤ Plug (priming)
6 Muffler
⑦ Spark plug
8 Oil filler (with oil guage)
9 Fuel tank

10 Casing cover
Drain plug (at two places)
12 Stop Switch
13 Recoil starter
14 Recoil Starter handle
15 Fuel valve
16 Chocke lever
17 Air cleaner
18 Speed control lever

19 Strainer
20 Hose coupling
21 Hose band
22 Tools
23 Instruction for use (This publication)
24 Hexagon wrench (Semi trash pump only)

3. PRE-OPERATION FOR STARTING

(See Fig. 2)

1. CONNECT SUCTION HOSE (See Fig. 2)①

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.2-2)

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. 2)④

Before checking or refilling engine oil, be sure the engine is located on stable, level surface and stopped.

■ Do not screw the oil gauge into the oil filler neck to check oil level. If the oil level is low, refill 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. 2-3)

Explanation of Fig. 2④

① Oil Gauge Upper Level
3 Lower Level

Model Oil capacity
EW2050H	0.6 L
EW3050H
EW2051H
EW3051H

4. CHECK FUEL (See Fig. 2-5)

WARNING

■ Do not refuel while smoking, near an open flame or other such potential fire hazards. Otherwise fire accident may occur.
■ Remove the statistic electricity from your body before refilling 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 Capacity

Model	Fuel Tank capacityLitre (U.S.gal)
EW2050H	3.2 (0.85)
EW3050H
EW2051H
EW3051H

■ Close the fuel valve before filling the fuel tank.
- Do not fill above the top of the fuel filter screen (marked 1), or the fuel may overflow when it heats up later and expands.

Explanation of Fig. 2 ⑤

① Maximum Fuel level

■ When filling the fuel tank, always use the fuel filter 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. 2-6)

5. CHECK PRIMING WATER (See Fig. 2)⑦

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.

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

■ 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.3-5)

(6) After starting the engine, gradually open choke by turning the choke lever and finally 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. 3-6)

2. RUNNING (See Fig. 4)

(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. 4-①)
(2) Gradually move the speed control lever toward the high speed position (H) and set it at the required engine speed. (See Fig. 4-2)
■ 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. 5)

(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. 5-1)
(2) Turn the STOP SWITCH counterclockwise to the position "O" (OFF). (See Fig. 5)②
(3) Close the fuel valve. (See Fig. 5-3)
(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. 5-4)

※ STOPPING ENGINE WITH THE FUEL VALVE

Close 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.

5. MAINTENANCE

(See Fig. 8)

1. DAILY INSPECTION

Before running the engine, check the following service items.

① Loose or broken bolts and nuts
② Clean air cleaner element
③ Enough clean engine oil
④ Leakage of gasoline and engine oil
⑤ Enough gasoline
6 Safe surroundings
⑦ Check the priming water
8 Excessive vibration, noise

2. PERIODIC INSPECTION

Periodic maintenance is vital to the safe and efficient 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 table

Maintenance Items Every 8 hours	(Daily)	Every 50 hours (Weekly)	Every 200 hours (Monthly)	Every 300 hours	Every 500 hours	Every 1000 hours
CLEAN PUMP SET AND CHECK BOLTS AND NUTS	● (Daily)
CHECK FOR LEAKAGE FROM HOSES AND FITTING	● (Daily)
CHECK AND REFILL ENGINE OIL	● (Refill 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			●
CLEAN FUEL STRAINER			●
CLEAN AND ADJUST SPARK PLUG AND ELECTRODES			●
CHECK AND ADJUST VALVE CLEARANCE				●
REMOVE CARBON FROM CYLINDER HEAD					●
CLEAN AND ADJUST CARBURETOR					●
REPLACE FUEL HOSE						● (Every 2 years)
OVERHAUL ENGINE IF NECESSARY						●

3. INSPECTING THE SPARK PLUG

(See Fig. 7)①

(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)

4. ENGINE OIL CHANGE (See Fig. 7, 2) ③

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 refilling oil.

Model Oil capacity
EW2050H	0.6 L
EW3050H
EW2051H
EW3051H

(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. 7)④

WARNING

Flame Prohibited

WARNING

Remove the statistic electricity from your body before refilling 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. 7-4)①
(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. 7)⑤

A dirty air cleaner element will cause starting difficulty, power loss, engine malfunctions, and shorten engine life extremely.

Always keep the air cleaner element clean.

WARNING

Flame Prohibited

■ Urethane Foam cleaning (See Fig. 7-5) ^2 Wash and clean the urethane foam with detergent. After cleaning, dry it. Clean the urethane foam element every 50 hours.

■ Second element (See Fig. 7-5) 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 (See Fig. 7)⑥

WARNING

■ Take extreme caution when replacing fuel hose; gasoline is extremely flammable.
■ Remove the statistic electricity from your body before refilling 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. CLEANING PUMP INSIDE

(See Fig. 7-7) 10

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. 7-7)

(1) Removal of the casing cover (See Fig. 7-8) Remove the 4 socket bolts.
(2) Cleaning the inside of the pump (See Fig. 7-9) After removing the pebbles and dirt from the inside of the pump, rinse it out with clean water.

Explanation of Fig. 7 ⑨

① Casing cover O-Ring ②

Make 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. 7-10) Tighten the 4 socket bolts.

6. PREPARATIONS FOR STORAGE

1. WATER (See Fig. 8)①

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.

3. DISCHARGE FUEL

(See Fig. 8)②

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 refilling 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 meta parts of the unit.

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

■ 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 float chamber and discharge fuel.

4. ENGINE OIL (See Fig. 8)③

■ 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.

5. CLEAN AND STORE

■ 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.

7. OIL SENSOR INSTRUCTIONS

1. FUNCTION OF OIL SENSOR

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. 2-4)

2. RESTARTING

(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.

8. EASY TROUBLESHOOTING

1. PUMP DOES NOT RUN.

■ Engine dose not start. (See "8.-6. WHEN ENGINE DOES NOT START")
■ Sticking of impeller (Disassemble and clean.)

2. PUMPING VOLUME IS SMALL.

■ 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.)
■ Insufficient 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.)

4. DELIVERY HOSE DOES NOT STAY ON COUPLING.

■ 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 firmly. 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 five 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.

9. SPECIFICATIONS

Model EW2050H EW305		50H EW2051H EW305	1H
PUMP	Type Self-priming, Centrifugal pump	Self-priming, Semi Trash pump
	Suction × Delivery Diameters mm 50	× 50 76 × 76 50 × 50	76 × 76
	Total Head m 32 23
	Maximum Delivery Volume Liter/min	520 1000 700	1000
	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
Dimensions (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.)

• Specifications 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.

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)EW3050H 89 dB(A)EW2051H 87 dB(A)EW3051H 90 dB(A)	Operating condition: @ 75% loadMeasuring method: At a distance of 1m from the surface of the machinery and at a height of 1.6m from the floor. And the sound pressure value of the direction used as the maximum sound pressure is shown.

1. Sound power level (2000/14/EC-2005/88/EC)

Brand Name Me	Measured Sound Power Level Guaranteed Sound Power Level
EW2050H 100	dB(A) 101 dB(A)
EW3050H 103	dB(A) 103 dB(A)
EW2051H 101	dB(A) 103 dB(A)
EW3051H 104	dB(A) 105 dB(A)

These noise levels do not necessarily showed a safe working level. However, the user will enable better evaluation of hazard and risk using this information.

Note: The noise level changes with specifications. Specifications may be changed without a preliminary announcement.

Français (Instructions originales)

AVANT-PROPOS

PROD No. SER No.

Illustration of a person inside a building with smoke and dust clouds (no text or symbols)

AVERTISSEMENT

: PRÉCAUTIONS RELATIVES AU PLEIN DE CARBURANT

Illustration of a person operating a robotic device with visible gears and wiring (no text or symbols)

AVERTISSEMENT

Illustration of a person operating a mechanical device with a cross-shaped band (no text or symbols)

AVERTISSEMENT

: AUTRES CONSIGNES DE SÉCURITÉ

Cartoon illustration of a person falling off a slope with a helmet and gear (no text or symbols)

Illustration of two people sitting on a platform under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

ATTENTION

: PRENEZ GARDE AUX COUPS DE BÉLIER

PROD No. SER No.

Illustration of two workers assembling a portable industrial machine (no text or symbols visible)

Illustration of a person inside a large industrial structure with smoke and dust clouds (no text or symbols)

Illustration of a person operating a robotic device with rotating wheels (no text or symbols visible)

Illustration of two people operating a machine with steam rising (no text or symbols)

1m 1m

Illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in rain, one seated on a vehicle while the other stands (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

PROD No. SER No.

N. PROD./N. DI SERIE (etichetta) N. DI SERIE (timbrato)

INDICE

Pagina

1. PRECAUZIONI PER LA SICUREZZA....40

2. COMPONENTI 42

3. OPERAZIONI PRELIMINARI PER L'AVVIO ....43

4. USO DELLA POMPA....44

5. MANUTENZIONE 45

6. PREPARATIVI PER LA CONSERVAZIONE 47

7. ISTRUZIONI PER IL SENSORE OLIO 48

8. RISOLUZIONE DEI PROBLEMI SEMPLICI ....48

9. DATI TECNICI 50

10. DICHIARAZIONE DI CONFORMITÀ CE....50

NOTA

Illustration of a person inside a large industrial container with smoke rising (no text or symbols)

AVVERTIMENTO

: PRECAUZIONI PER IL RIFORNIMENTO DI CARBURANTE

Illustration of a person operating a robotic arm with a gear-like structure (no text or symbols visible)

AVVERTIMENTO

Illustration of a person operating a mechanical device with crossed arms (no text or symbols)

AVVERTIMENTO

: ALTRE PRECAUZIONI PER LA SICUREZZA

Cartoon illustration of a person falling off a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in rain, one holding a large umbrella and the other operating a tractor (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

PROD No. SER No.

PROD No. / SER No. (etiket) SER No. (gestanst)

INHOUD

Pagina

1. VEILIGHEIDSVOORZORGSMAATREGELEN 53

2. COMPONENTEN 55

3. VOORBEREIDINGEN VOOR HET STARTEN 56

4. DE POMP BEDIENEN....57

5. ONDERHOUD....58

6. VOORBEREIDINGEN VOOR OPSLAG 60

7. INSTRUCTIES VOOR OLIESENSOR....61

8. EENVOUDIG STORINGZOEKEN....61

9. TECHNISCHE GEGEVENS 63

10. EG-VERKLARING VAN CONFORMITEIT 63

OPMERKING

Illustration of a person inside a house with smoke and debris, no text or symbols present

WAARSCHUWING

: VEILIGHEIDSVOORZORGSMAATREGELEN BIJ HET TANKEN

Illustration of a person working on a robotic device with no visible text or symbols

WAARSCHUWING

: BRANDPREVENTIE

Illustration of two people operating a mechanical device with a sprayer, no text or symbols present

WAARSCHUWING

: OVERIGE VEILIGHEIDSVOORZORGSMAATREGELEN

WAARSCHUWING : OPSTARTCONTROLES

Illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two people sitting on a vehicle under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

LET OP : KIJK UIT VOOR WATERSLAG

1. WERKING VAN OLIESENSOR

PROD No. SER No.

Illustration of a person inside a house with smoke and dust clouds (no text or symbols)

ADVERTENCIA

: PRECAUCIONES PARA REPOSTAR

Illustration of a person operating a robotic device with visible gears and blades (no text or symbols)

ADVERTENCIA

Illustration of a person crossed with a large mechanical device, no text or symbols present

ADVERTENCIA

Cartoon illustration of a person falling off a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in the rain, one standing and one seated on a platform (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

PRECAUCIÓN

PROD No. SER No.

Illustration of a person inside a house with smoke and debris, no text or symbols present

AVISO

Illustration of a person operating a robotic vehicle with a gear-like structure (no text or symbols visible)

AVISO

Illustration of two people operating a mechanical device with no visible text or symbols

AVISO

: OUTRAS PRECAUÇÕES DE SEGURANÇA

Illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two children playing with an umbrella in the rain, one standing on a mat and the other holding a tablet (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

PRECAUÇÃO

: TENHA ATENÇÃO AOS GOLPES DE ARÍETE

PROD No. SER No.

PROD nr. / SER nr. (Etiket) SER nr. (Stempel)

INDHOLD

Side

1. SIKKERHEDSFORSKRIFTER 92

2. KOMPONENTER 94

3. FORBETJENING TIL START 95

4. BETJENING AF PUMPEN....96

5. VEDLIGEHOLDELSE 97

6. FORBEREDELSE TIL OPBEVARING....99

7. INSTRUKTIONER TIL OLIESENSOR....100

8. NEM FEJLFINDING 100

9. SPECIFICATIONER 102

10. EF-OVERENSSTEMMELSESERKLÆRING.... 102

BEMÆRK

Illustration of a person inside a greenhouse with smoke and dust clouds (no text or symbols)

ADVARSEL

: FORSKRIFTER VEDR∅RENDE BRÆNDSTOFPÅFYLDNING

Illustration of a person operating a robotic device with visible wheels and antenna (no text or symbols)

ADVARSEL

: FOREBYGGELSE AF BRAND

Illustration of a person operating a mechanical device with crossed bars (no text or symbols)

ADVARSEL

: ANDRE SIKKERHEDSFORSKRIFTER

Cartoon illustration of a person falling off a slope with a helmet and gear (no text or symbols)

Illustration of two people sitting on a platform under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a hard hat, smiling with one hand raised (no text or symbols)

▲ FORSIGTIG : PAS PÅ VANDSLAG

PROD No. SER No.

Illustration of a person running inside a house with smoke and debris (no text or symbols)

Illustration of a person operating a robotic device with visible gears and blades (no text or symbols)

Illustration of two people operating a robotic device with a warning symbol (no text or symbols present)

1m 1m

Illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in rain, one holding a motorcycle and the other standing on a platform (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

PROD No. SER No.

ÜRÜN No. / SERİ No. (Etiket) SERİ No. (Damga)

iÇİNDEKİLER

Sayfa

Illustration of a person inside a damaged structure with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with a gear-like structure (no text or symbols visible)

Illustration of a person in a suit operating a mechanical device with motion lines (no text or symbols)

1m 1m

⚠ UYARI : DİĞER GÜVENLİK UYARILARI

Cartoon illustration of a person falling off a slope with a helmet and gear (no text or symbols)

Illustration of two people on a robot under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

⚠ DİKKAT : SU DARBESİNE KARŞI DİKKATLİ OLUN

PROD No. SER No.

Illustration of a person inside a building with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with wheels and a sensor array (no text or symbols)

Illustration of a person operating a mechanical device with steam rising (no text or symbols)

1m 1m

⚠ OSTRZEŻENIE : POZOSTAŁE ZASADY BEZPIECZEŃSTWA

Cartoon illustration of a person climbing a slope with directional arrows (no text or symbols)

Illustration of two people under an umbrella in the rain, one holding a tractor and the other standing on a platform (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

PROD No. SER No.

Illustration of a person climbing a slope with scaffolding (no text or symbols)

Illustration of two people under an umbrella in rain, one seated on a platform with a vehicle nearby (no text or symbols)

Cartoon illustration of a smiling robot holding a wrench, no text or symbols present

FIGYELEM! : ELÓZZE MEG A VÍZÜTÉS KIALAKULÁSÁT

PROD No. SER No.

Illustration of a person inside a house with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with visible gears and wheels (no text or symbols)

Illustration of two people crossed over a machine with steam rising (no text or symbols)

1m 1m

VÝSTRAHA

: ĐALŠIE BEZPEČNOSTNÉ POKYNY

■ Nedovol'te obsluhovat' zariadenie opitým osobám.
■ Dávajte pozor na horúce časti.

Cartoon illustration of a person falling off a slope with a vehicle in the background (no text or symbols)

Illustration of two people under an umbrella in rain, one seated on a vehicle and the other standing, with no visible text or symbols.

Cartoon character holding a wrench and a mechanical device (no text or symbols)

PROD No. SER No.

Illustration of a person inside a house with smoke and steam rising (no text or symbols)

Illustration of a person operating a tracked robot with gear and wheels (no text or symbols)

Illustration of two people working on a mechanical device with motion lines indicating movement (no text or symbols)

1m 1m

VAROVÁNÍ

: DALŠÍ BEZPEČNOSTNÍ OPATŘENÍ

Cartoon illustration of a person in motion with arms raised, surrounded by abstract geometric shapes (no text or symbols)

Illustration of two people on a tractor under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

SYMBOLY

6. KDYŽ MOTOR NESTARTUJE:

PROD No. SER No.

Illustration of a person inside a house with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with a gear-like structure (no text or symbols visible)

Illustration of a person operating a mechanical device with crossed-out beams (no text or symbols)

1m 1m

OPOZORILO : DRUGI VARNOSTNI UKREPI

Illustration of a person in a seatbelt with arms crossed, no text or symbols present

Illustration of two people sitting on a platform under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

⚠️ POZOR : PREPREČITE VODNI SUNEK

PROD No. SER No.

Nr. PROD / Nr. SER (Etiketa) Nr. SER (i stampuar)

PËRMBAJTJA

Faqja

1. MASA PARAPRAKE TË SIGURISË 193
2. PJESËT PËRBËRËSE 195
3. PARAPËRGATITJA PËR NDEZJE. 196
4. PËRDORIMI I POMPËS 197
5. MIRËMBAJTJA 198
6. PËRGATITJET PËR MAGAZINIM....200
7. UDHËZIMET PËR SENSORIN E VAJIT .....200
   8.ZGJIDHJA E LEHTË E PROBLEMEVE 201
8. SPECIFIKIMET 202
9. DEKLARATA E KONFORMITETIT ME KE-NË 202

SHËNIM

Illustration of a person inside a house with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with wheels and a gear (no text or symbols)

Illustration of two people operating a machine with steam rising (no text or symbols)

1m 1m

⚠️ PARALAJMËRIM : MASA PARAPRAKE SIGURIE TË TJERA

KUJDES : RUHUNI NGA GODITJA E UJIT

Illustration of a person in motion with arms crossed, no text or symbols present

Illustration of two people under an umbrella in the rain, one seated on a tractor and the other standing (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

PROD No. SER No.

PROD No. / SER No. (Етикет/Табелка) SER No. (щампован)

СЪДЪРЖАНИЕ

Страница

Illustration of a person inside a house with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with a gear-like structure (no text or symbols visible)

Illustration of two people operating a mechanical device with a cross-shaped structure (no text or symbols)

1m 1m

Cartoon illustration of a person falling off a slope with a flag, no text or symbols present

Illustration of two people sitting on a robot under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a hard hat, smiling with open arms (no text or symbols)

PROD No. SER No.

Br. PROIZ. / SER. br. (Oznaka) SER. br. (pečat)

SADRŽAJ

Stranica

1. MJERE PREDOSTROŽNOSTI .....218
2. DIJELOVI....220
3. PREDRADNJE ZA POKRETANJE .....221
4. RUKOVANJE CRPKOM .....222
5. ODRŽAVANJE....223
6. PRIPREME ZA POHRANJIVANJE .....225
7. UPUTE ZA SENZOR ZA ULJE .....225
8. RJEŠAVANJE JEDNOSTAVNIH PROBLEMA....226
9. SPECIFIKACIJE .....227
10. EZ IZJAVA O SUKLADNOSTI .....227

NAPOMENA

Pogledajte ilustracije na poleđini naslovnice za slike 1 do 8 navedene u rečenici.

Illustration of a person inside a house with smoke and steam rising (no text or symbols)

Illustration of a person operating a tracked robot with a radar dish (no text or symbols visible)

Illustration of a person assembling or repairing a mechanical device with a crossed-out band (no text or symbols)

1m 1m

⚠ UPOZORENJE : OSTALE MJERE PREDOSTROŽNOSTI

Cartoon illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in rain, one seated on a platform with a vehicle, the other standing nearby (no text or symbols)

Cartoon character holding a wrench and a hard hat, smiling with open arms (no text or symbols)

SIMBOLI

	Pročitajte priručnik.		Isključite ventil za gorivo kad se motor ne koristi.
	Držite se podalje od vruće površine.		Provjerite cure li crijevo i spojni dijelovi.
	Ispušni plin je otrovan.Nemojte raditi u neprovjetrenoj prostoriji ili zatvorenom području.		Vatra, otvoreni plamen i pušenje je prečistač.
	Motor zaustavite prije dolijevanja goriva.		VRUĆE, nemojte dodirivati vrući dio.

	Uključeno(Pokretanje)		Pokretanjemotora (električnopokretanje)		Gorivo (benzin) Startna pumpa
	Isklj. (Stop)		Zaustavljanjemotora		Gorivo (dizel)		Pritisni startnupumpu
	Motorno ulje Hladan m				Isključivanjedovoda goriva		Ne pritišći startnupumpu
	Dodavanje ulja Topao	r			Kvar / neispravnostsustava za gorivo		Dva puta
	Baterija		Električno predgrijavanje(Pomoć za pokretanjekod niske temperature)		Čok
	Brzo		Položaj zapokretanje		Plus;pozitivni pol
	Sporo		Položaj zazaustavljanje		Minus;negativni pol

2. DIJELOVI

(Pogledajte sliku)

NAPOMENA

Pogledajte ilustracije na poledini naslovnice za slike 1 do 8 navedene u rečenici.

5. CRPKA SE NAGLO ZAUSTAVLJA.

PROD No. SER No.

Illustration of a person inside a house with smoke and debris, no text or symbols present

ПРЕДУПРЕДУВАЊЕ

Illustration of a person operating a robotic device with visible gears and wheels (no text or symbols)

ПРЕДУПРЕДУВАЊЕ

: СПРЕЧУВАЊЕ ПОЖАР

Illustration of a person operating a machine with a large cross-shaped device (no text or symbols visible)

1m 1m

ПРЕДУПРЕДУВАЊЕ

Illustration of a person climbing a slope with directional arrows, no text or symbols present

Illustration of two people under an umbrella in the rain, one standing on a vehicle and the other holding a tablet (no text or symbols present)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

PROD No. SER No.

Cartoon illustration of a person inside a house with smoke and debris, no text or symbols present

Illustration of a person operating a robotic device with visible gears and wheels (no text or symbols)

Illustration of two people working on a mechanical device with no visible text or symbols

1m 1m

AVERTISMENT : ALTE MĂSURI DE SIGURANTĂ

Cartoon illustration of a person climbing a slope with a helmet and gear (no text or symbols)

Illustration of two people under an umbrella in rain, one holding a large umbrella and the other sitting on a tractor (no text or symbols)

Cartoon illustration of a smiling robot holding a wrench and a wrench, with no text or symbols present.

PROD No. SER No.

Бр. ПРОИЗ. / СЕР. бр. (Етикета) СЕР. бр. (Утиснут)

САДРЖАЈ

Страна

1. БЕЗБЕДНОСНЕ МЕРЕ ПРЕДОСТРОЖНОСТИ.... 255

2. KOMПОНЕНТЕ.... 257

3. РАДЊЕ ПРЕ ПОКРЕТАЊА 258

4. РУКОВАЊЕ ПУМПОМ.... 259

5. ОДРЖАВАНЬЕ..... 260

6. ПРИПРЕМЕ ЗА СКЛАДИШТЕЊЕ.... 262

7. УПУСТВА ЗА СЕНЗОР УЛЬА 262

8. ЈЕДНОСТАВНО РЕШАВАЊЕ ПРОБЛЕМА 263

9. СПЕЦИФИКАЦИЈЕ....264

10. ЕЗ ДЕКЛАРАЦИЈА О УСКЛАЂЕНОСТИ. 264

НАПОМЕНА

Cartoon illustration of a person inside a house with smoke rising from the windows (no text or symbols)

Illustration of a person operating a robotic device with visible gears and wheels (no text or symbols)

Illustration of a person operating a robotic device with smoke, no text or symbols present

1m 1m

⚠️ УПОЗОРЕЊЕ : ДРУГЕ МЕРЕ ПРЕДОСТРОЖНОСТИ

Illustration of a person in motion with arms crossed, no text or symbols present

Illustration of two people sitting on a platform under an umbrella in the rain (no text or symbols)

Cartoon character holding a wrench and a wrench, smiling with open mouth (no text or symbols)

⚠️ ОПРЕЗ : ПАЗИТЕ НА ХИДРАУЛИЧНИ УДАР

PROD No. SER No.

Illustration of a person inside a house with smoke and steam rising (no text or symbols)

Illustration of a person operating a robotic device with a gear-like structure (no text or symbols visible)

Illustration of a person operating a machine with steam rising (no text or symbols)

1m 1m

Cartoon illustration of a person climbing a slope with arms crossed (no text or symbols)

Illustration of two people sitting on a wet surface under an umbrella, with a vehicle nearby (no text or symbols)

Cartoon character holding a wrench and a mechanical device (no text or symbols)

PROD No. SER No.

ЗАВОД. НОМ./ СЕР. НОМ. (Етикетка) СЕР. НОМ. (Штампування)

3MICT

Сторінка

Illustration of a person inside a building with smoke and dust clouds (no text or symbols)

Illustration of a person operating a small wheeled robot on a mat (no text or symbols visible)

Illustration of a person operating a mechanical device with a warning symbol (no text or symbols present)

1m 1m

ПОПЕРЕДЖЕННЯ

Cartoon illustration of a person falling off a slope with a vehicle in the background (no text or symbols)

Illustration of two people sitting on a vehicle under an umbrella in heavy rain (no text or symbols)

Cartoon character holding a wrench and a hard hat, smiling with one hand raised (no text or symbols)

3-11-8, Sumiyoshi-cho,

Anjo, Aichi 446-8502 Japan

EW2050H-23L-0216

www.makita.com

IDE