Makita EW2050H User manual

EW2050H EW2051H
EW3050H EW3051H
Makita Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita Corporation Anjo, Aichi, Japan
www.makita.com
EW2050H-23L-0615
ISSUE EMD-PU7852
9ZZ9990152
GB Engine pump Instruction Manual
F Pompe à Eaux Claires Manuel d’instructions
D Benzinmotorpumpe Gebrauchsanleitung
I Pompa motore Istruzioni per l’uso
NL Motorpomp Gebruiksaanwijzing
E Bomba de Motor a Gasolina Manual de instrucciones
P Motobomba Manual de instruções
DK Motorpumpe Brugervejledning
GR Αντλία κινητήρα Εγχειρίδιο οδηγιών
TR Motorlu Pompa Kullanım Kılavuzu
PL Spalinowa Pompa Wodna Instrukcja obsługi
HU Benzinmotoros szivattyú Használati útmutató
SK Motorové čerpadlo Návod na obsluhu
CZ Motorové čerpadlo Návod k použití
SI Motorna črpalka Navodila za uporabo
AL Pompë me motor Manual Udhëzimi
BG Моторна помпа Упътване за работа
HR Crpka motora Upute za korištenje
MK Моторна пумпа Упатство за работа
RO Motopompă Manual de instrucţiuni
RS Моторна пумпа Упутство за употребу
RUS Мотопомпа
Инструкция по эксплуатации
UA Мотопомпа Інструкція з експлуатації

5W
10W
20W
#20
#30
#40
10W-30
10W-40
Single
grade
Multi
grade
Ambient
temperature
-20 -10 0 10 20 30 40 C
-4 14 32 50 68 86 104 F
2
3
4
1
1
5
6
7
2
1
2
3
4
3
1
2
3
4
5 6
7
8
10
918
17
16
15
14
13
19 2422 23 20 21
12 11
1
2
3
1

2
4
35
6
1
2
4
1
5
1
2
3
4
5
7
6
7 8
2
1
3
18 654
1
1
1
2

6
7
8
9
10
1
2
8
3
2
1

1
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 efcient 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 specications 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 specication.)
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
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
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 overll 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 mufer 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).
: OTHER SAFETY PRECAUTIONS
■ Do not allow drunk driving.
■ Be careful of hot parts.
The mufer 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
1m
1m

3
■ 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 rell if necessary.
■ Check the fuel level and rell if necessary. Take care not to overll 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.
: 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 Abrupt closing of delivery valve
WARNING
CAUTION

4
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
D
Fuel (diesel) Push primer
Engine oil Cold engine Fuel shut-off Do not push primer
Add oil Warm engine
Fuel system
failure / malfunction
Two times
Battery Electrical preheat
(Low temperature start aid)
Choke
Fast Run position Plus ;
positive polarity
Slow Stop position Minus ;
negative polarity
2. COMPONENTS
(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)
Mufer
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)
NOTE

5
3. PRE-OPERATION FOR STARTING
(See Fig. )
1. CONNECT SUCTION HOSE (See Fig. - )
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 relling 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, rell 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 Level
Model Oil capacity
EW2050H
EW3050H
EW2051H
EW3051H
0.6 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 relling 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 capacity
Litre (U.S.gal)
EW2050H
EW3050H
EW2051H
EW3051H
3.2 (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 overow 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. STARTING (See Fig. )
(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. - )
2. RUNNING (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 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. )
1. DAILY INSPECTION
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, noise

7
2. PERIODIC INSPECTION
Periodic maintenance is vital to the safe and efcient
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 ● (Rell 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. - )
(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 relling oil.
Model Oil capacity
EW2050H
EW3050H
EW2051H
EW3051H
0.6 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 relling 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 difculty,
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
(See Fig. - )
WARNING
■Take extreme caution when replacing fuel
hose; gasoline is extremely ammable.
■Remove the statistic electricity from your
body before relling 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-Ring
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. - )
Tighten the 4 socket bolts.
6. PREPARATIONS FOR STORAGE
1. WATER (See Fig. - )
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. - )
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 relling 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.
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. 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.

10
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.)
■ Insufcient 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 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
9. SPECIFICATIONS
Model EW2050H EW3050H EW2051H EW3051H
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
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.)
• Specications are subject to change without notice.

12
EC-DECLARATION OF CONFORMITY
1. Assessment regulation
The undersigned, Y. Fukaya, representing the manufacture, herewith declares that the product in
conformity with the provisions the following EC-directives:
- Directive 2006/42/EC (98/37/EC) on machinery
- Directive 2014/30/EU on electromagnetic compatibility
- Directive 2000/14/EC-2005/88/EC on outdoor noise and Harmonized standard: EN 12601(*1)
*1. Water seeping tests is based on ISO8528-6-6-1-2.
2. Manufacturer, address
MAKITA INTERNATIONAL EUROPE LTD.
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
3. Name and address of the person who keeps the Technical document
MAKITA INTERNATIONAL EUROPE LTD.
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
4. Description and identication of the machinery
(i) Product : Water Pump
(ii) Function : Water Pump
(iii) Commercial brand : EW2050H, EW3050H, EW2051H, EW3051H
(iv) Serial No. (rst / last) : PTX210 -0000001 / PTX210 -9999999
PTX310 -0000001 / PTX310 -9999999
PTX210ST -0000001 / PTX210ST -9999999
PTX310ST -0000001 / PTX310ST -9999999
5. Directive 2000/14/EC-2005/88/EC on outdoor noise
Conformity Assessment Procedure: Annex V
Brand Name 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)
6. Place, date: Makita Corporation, 1 July 2015
3-11-8 Sumiyoshi-Cho,
Anjo, Aichi, 446-8502, Japan
7. Signed by
Yasushi Fukaya
Director

13
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)
Microphone
The side that produced the
highest sound pressure level
1.0m
1.6m
PUMP
2. Sound power level (2000/14/EC-2005/88/EC)
Brand Name 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 specications.
Specications may be changed without a preliminary announcement.

56
VOORWOORD
Hartelijk dank voor uw aanschaf van een MAKITA POMP.
Deze gebruiksaanwijzing beschrijft het gebruik en onderhoud van uw MAKITA POMP.
Alle informatie in deze publicatie is gebaseerd op de meest recente productinformatie die
beschikbaar was ten tijde van goedkeuring voor afdrukken. Lees deze gebruiksaanwijzing vóór
gebruik aandachtig door.
Neem een moment de tijd om uzelf bekend te maken met de correcte bedienings- en
onderhoudsprocedures om dit apparaat zo veilig en efciënt mogelijk te gebruiken.
Houd deze gebruiksaanwijzing bij de hand zodat u het op elk moment kunt raadplegen.
Door onze constante inzet onze producten te verbeteren, kunnen bepaalde procedures en
technische gegevens worden gewijzigd zonder voorafgaande kennisgeving.
Als u vervangingsonderdelen bestelt, vermeldt u altijd het MODEL, PRODUCTIENUMMER en
SERIENUMMER van uw pomp.
Controleer het productienummer en serienummer op uw pomp en vul ze hieronder in.
(De locatie van het etiket verschilt afhankelijk van de productspecicatie.)
PROD No. SER No.
PROD No. / SER No.
(etiket)
SER No. (gestanst)
Raadpleeg de afbeeldingen op de achterkant van de
voorkaft voor afb. t/m aangegeven in de tekst.
OPMERKING
INHOUD Pagina
1. VEILIGHEIDSVOORZORGSMAATREGELEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
2. COMPONENTEN ..................................................59
3. VOORBEREIDINGEN VOOR HET STARTEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4. DE POMP BEDIENEN ...............................................61
5. ONDERHOUD .....................................................62
6. VOORBEREIDINGEN VOOR OPSLAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7. INSTRUCTIES VOOR OLIESENSOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8. EENVOUDIG STORINGZOEKEN ......................................65
9. TECHNISCHE GEGEVENS ..........................................67
Nederlands (Originele instructies)

57
1. VEILIGHEIDSVOORZORGSMAATREGELEN
Wij vragen u elke voorzorgsmaatregel aandachtig te lezen.
Let met name goed op de tekst die vooraf gegaan wordt door de volgende woorden:
“WAARSCHUWING”, wijst op een grote kans op ernstig persoonlijk letsel of
de dood in het geval de instructies niet worden gevolgd.
“LET OP”, wijst op een kans op persoonlijk letsel of beschadiging van het
apparaat in het geval de instructies niet worden gevolgd.
: VOORZORGSMAATREGELEN TEGEN UITLAATGASSEN
■ Adem nooit de uitlaatgassen in.
Deze bevatten koolmonoxide: een kleurloos, geurloos en extreem
gevaarlijk gas dat kan leiden tot bewusteloosheid of de dood.
■ Gebruik de pomp nooit binnenshuis of in een slecht geventileerd gebied,
zoals in een tunnel, grot, enz.
■ Wees uitermate voorzichtig wanneer de pomp wordt gebruik in de buurt
van mensen of dieren.
■ Houd de uitlaatpijp vrij van vreemde voorwerpen.
: VEILIGHEIDSVOORZORGSMAATREGELEN BIJ HET TANKEN
■ Brandstof is uiterst brandbaar en de dampen ervan kunnen bij ontsteking
exploderen.
■ Vul geen brandstof bij binnen of in een slecht geventileerd gebied.
■ Zorg ervoor dat de pomp is uitgeschakeld voordat u brandstof bijvult.
■ Verwijder de brandstoftankdop niet en vul geen brandstof bij wanneer de
motor nog heet is of draait.
Laat de motor minstens 2 minuten afkoelen voordat u brandstof bijvult.
■ Vul de brandstoftank niet te vol.
■ Als brandstof wordt gemorst, veegt u dit voorzichtig af en wacht u tot de
brandstof is opgedroogd voordat u de motor start.
■ Nadat brandstof is bijgevuld, zorgt u ervoor dat de brandstoftankdop goed
wordt vastgedraaid om te voorkomen dat brandstof wordt gemorst.
: BRANDPREVENTIE
■ Bedien de pomp niet terwijl u rookt en in de buurt van open vuur.
■ Gebruik niet in de buurt van droge struiken, takken, textieldoeken of
andere brandbare materialen.
■ Plaats de kant van de motor met de koelluchtlinlaat (vlakbij de
trekstartinrichting) en de uitlaatdemper op minstens 1 meter afstand tot
gebouwen, obstakels en andere brandbare voorwerpen.
■ Houd de pomp uit de buurt van brandbare en andere gevaarlijke materialen
(vuilnis, poetsdoeken, smeermiddelen, explosieven).
: OVERIGE
VEILIGHEIDSVOORZORGSMAATREGELEN
■ Ga niet met alcohol op rijden.
■ Wees voorzichtig rondom de hete onderdelen.
De uitlaatdemper en andere motoronderdelen worden zeer heet terwijl de
pomp draait of net is uitgezet. Gebruik de pomp op een veilige plaats en
houd kinderen uit de buurt van de draaiende pomp.
WAARSCHUWING
LET OP
WAARSCHUWING
WAARSCHUWING
WAARSCHUWING
WAARSCHUWING
1m
1m

58
■ Raak de ontstekingskabel niet aan tijdens het starten en draaien van de
pomp.
■ Gebruik de pomp op een stabiele en horizontale ondergrond.
Als de motor wordt gekanteld, kan brandstof worden gemorst.
OPMERKING
Als de pomp onder een steile hellingshoek wordt gebruikt, kan hij
vastlopen wegens onvoldoende smering, ondanks een maximaal
oliepeil.
■ Transporteer de pomp niet met brandstof in de tank of met geopende
brandstofkraan.
■ Houd het apparaat droog (gebruik het niet in de regen).
: OPSTARTCONTROLES
■ Controleer zorgvuldig de brandstofslangen en -koppelingen op loszitten
en brandstoekkage. Gelekte brandstof veroorzaakt een potentieel
gevaarlijke situatie.
■ Controleer of de bouten en moeren los zitten. Een loszittende bout of
moer kan leiden tot een ernstige motorstoring.
■ Controleer het motoroliepeil en vul zo nodig motorolie bij.
■ Controleer het brandstofpeil en vul zo nodig brandstof bij. Wees voorzichtig
dat de tank niet te vol wordt.
■ Houd de koelribben van de cilinder en de trekstartinrichting vrij van vuil,
gras en ander afval.
■ Draag nauwsluitende werkkleding tijdens het gebruik van de motor.
Een loshangend schort, handdoek, riem, enz. kan door de motor of
aandrijving worden gegrepen, waardoor een gevaarlijke situatie ontstaat.
: KIJK UIT VOOR WATERSLAG
■ Zorg ervoor dat de afvoerslang niet wordt overreden door een voertuig en
sluit de afvoerkraan niet plotseling omdat hierdoor waterslag kan optreden,
waardoor ernstige schade kan worden veroorzaakt aan de pomp.
Over de afvoerslang rijden Plotseling sluiten van de
afvoerkraan
WAARSCHUWING
LET OP