Alemlube DK50 User manual

Uses Diesel and water transfer
Engine Type OHV 4 stroke, Air Cooled
Maximum Flow Rate 500 L/min
IMPORTANT
Please make certain that persons who are to use this equipment thoroughly read and understand
these instructions and any additional instructions provided prior to operation.
NOTE
No refund or exchange once petrol is placed into the fuel tank.
Warranty registration must be complete within
30 days of purchase with proof of purchase.
Description
The Alemlube DK50 diesel driven 2" transfer engine pump is specifically designed and manufactured for the transfer of diesel
and water. Mounted in a robust tubular steel roll frame with rubber feet the DK50 is completely portable, suits many industrial,
workshop,agricultural, municipal, marine services and on site applications including construction site dewatering and is capable
of transferring up to 500 litres of diesel fuel or water per minute.
Driven by a powerful diesel engine this lightweight die-cast aluminium pump with 2" diameter inlet & outlet ports operates efficiently
with a maximum suction head of 7 metres and a maximum lift head of 28 metres.
Always ready to perform tank filling, diesel or water transfer the DK50 has a 2.5L fuel tank capacity with a key start system.
Specifications
Diesel Driven 2"
Diesel & Water Transfer Engine Pump Key Start
DK50
OWNER’S TECHNICAL MANUAL
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TABLE OF CONTENTS
SAFETY INSTRUCTION 1
CHARACTERISTICS AND USE 2
COMPONENT AND CONTROL LOCATIONS 3
PRE-OPERATION CHECK 4
1) Install the hose connector 4
2) Connect the suction hose 4
3) Connect the discharge hose 5
4) Check the engine oil level 5
5) Check the fuel level 6
6) Check the air cleaner element 7
7) Check that all nuts, bolts, and screws are tightened 7
8) Check the priming water 7
5. STARTING THE ENGINE 8
6. OPERATION 9
7. STOPPING THE ENGINE 10
8. ENVIRONMENTAL PROTECTION 10
9. MAINTENANCE 11
1) Change oil 13
2) Air cleaner service 13
3) Cleaning and replacing the fuel filter 14
10. TRANSPORTING/STORAGE 15
11. TROUBLESHOOTING 16
12. SPECIFICATION 16
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IMPORTANT
Keep this user manual handy, so you can refer to it at any time. All information in this publication is based on the latest
product information available at the time of approval for printing. This manual is considered a permanent part of the
pump and should remain with the unit if resold. Your safety and the safety of others are very important.
We have provided important safety messages in this manual and on the machine.
DANGER
READ THIS OWNER’S MANUAL CAREFULLY.
Pay special attention to symbols and any instructions that follow:
Indicates serious injury or death will result if instructions are not followed.
WARNING
Indicates a strong possibility that serious injury or death could result if instructions are no fool allowed.
WARNING
Indicates a possibility that minor injury or an result if instructions are not followed.
Indicates that equipment or property damage can result if instructions are not followed.
NOTE:
If a problem would arise, or if you have any questions about your pump, consult your appliance dealer.
1

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SAFETY INSTRUCTION
IMPORTANT
•The diesel driven diesel & water pump is designed to give safe and dependable service if operated according
to instructions.
•Read and understand the User Manual before operating the pump.
Failure to do so could result in personal injury or equipment damage.
•The muffler becomes very hot during operation and remains hot for a while after stopping the engine.
Be careful not to touch the muffler while it is hot. Let the engine cool before storing the water indoors.
•The engine exhaust system will be heated during operation and remain hot immediately after stopping the engine.
To prevent scalding, pay attention to the warning marks attached to the water pump.
•Diesel fuel is extremely flammable and explosive under certain conditions. Refuel in a well-ventilated area with
the engine stopped. Do not smoke or allow flames or sparks in the refuelling area or where diesel fuel is stored.
Do not overfill the tank. After refuelling, make sure the tank cap is closed properly and securely.
•Be careful not to spill fuel when refuelling. Spilled fuel and fuel vapor may ignite. If any fuel is spilled,
make sure the area is dry before starting the engine.
•Exhaust gas contains poisonous carbon monoxide gas, exposure can cause loss of consciousness and may
lead to death. Never run the engine in an enclosed or confined area.
•Always make a pre-operation inspection before you start the engine.
You may prevent an accident or equipment damage.
•Do not allow children to operate the pump. Keep children and pets away from the area of operation.
•Know how to stop the pump quickly, and understand the operation of all the controls.
Never permit anyone to operate the pump without the proper instructions.
•Place the pump on a firm, level surface rest the pump overturn.
•To prevent fire hazards and to provide adequate ventilation, keep the pump at least 1 metre away from building walls
and other equipment during operation. Do not place flammable objects close to the pump.
•Dress properly. Do not wear loose clothing or jewellery. Contain long hair. Keep your hair, clothing, and gloves away
from moving parts. Loose clothes, jewellery, and long hair can be caught in moving parts.
•Do not operate pump in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
The engine creates spark, which may ignite the dust or fumes.
•Do not overload the pump. Use the correct pump for your application.
The correct pump will do the job better and safer at the rate for which it is designed.
2

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CHARACTERISTICS AND USE
IMPORTANT
•The pump is a self-suction, single class eccentric pump. Powered by air-cooled, direct spray, 4-stroke, single cylinder
diesel engine. The spare parts are high pressure and die-casting aluminium alloy and mechanical seals devices.
COMPONENT AND CONTROL LOCATIONS
3
3. COMPONENT AND CONTROL LOCATIONS
3

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PRE-OPERATION CHECK
IMPORTANT
1) Install the hose connector.
Be sure to check that the packing is seated in its place and install the hose connector to the port the pump.
2) Connect the suction hose.
Use commercially available hose, hose connector and hose bands. The suction hose must be of reinforced, not collapsible
construction. Suction hose length should not be longer than necessary, as pump performance is best when the pump
is not far above the source of supply level. Self-priming time is also proportional to hose length.
A loose hose will reduce the pump performance and self-suction capacity. Before pumping water, attach the filter to the end
of the hose to filter out foreign particles in the water, the presence of which may cause clogging and damage the machine.
The strainer that is provided with the pump should be attached to the end of the suction hose with a band, as shown.
CAUTION
Always install the strainer on the end of the suction hose before pumping. The strainer will exclude debris that can cause
clogging or impeller damage.
4
4. PRE-OPERATION CHECK
1) Install the hose connector.
sure to check that the packing is seated in its place and install the hose connector to the
portthe pump.
2) Connect the suction hose.
Use commercially available hose, hose connector and hose bands. The suction hose must
be ofreinforced, no collapsible construction. Suction hose length should not be longer
than necessary,as pump performance is best when the pump is not far above the water
level. Self-priming timeis also proportional to hose length.
A loose hose will reduce the pump performance and self-suction capacity.
Before pumping water, attach the filter to the end of the hose to filter out foreign matters
in thewater, the present of witch may cause clogging and damage the machine.
The strainer that is provided with the pump should be attached to the end of the suction
hosewith a band, as shown.
Always install the strainer on the end of the suction hose
beforepumping .The strainer will exclude debris that can cause clogging
orimpeller damage.
4
4. PRE-OPERATION CHECK
1) Install the hose connector.
sure to check that the packing is seated in its place and install the hose connector to the
portthe pump.
2) Connect the suction hose.
Use commercially available hose, hose connector and hose bands. The suction hose must
be ofreinforced, no collapsible construction. Suction hose length should not be longer
than necessary,as pump performance is best when the pump is not far above the water
level. Self-priming timeis also proportional to hose length.
A loose hose will reduce the pump performance and self-suction capacity.
Before pumping water, attach the filter to the end of the hose to filter out foreign matters
in thewater, the present of witch may cause clogging and damage the machine.
The strainer that is provided with the pump should be attached to the end of the suction
hosewith a band, as shown.
Always install the strainer on the end of the suction hose
beforepumping .The strainer will exclude debris that can cause clogging
orimpeller damage.
4

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PRE-OPERATION CHECK
IMPORTANT
3) Connect the discharge hose.
Use a commercially available hose, hose connector and hose band. A short, large diameter hose is most efficient.
Long or small diameter hose increases fluid friction and reduces pump output.
NOTE
Tighten the hose band securely to prevent the under high pressure.
4) Check the engine oil level.
Check the engine oil level and replenish oil up to the neck if the pump is operated for more than 10 hours continuously.
CAUTION
• Engine oil is a major factor affecting engine service life. Detergent or vegetable oil is not recommended.
• Be sure to check the engine oil on a level surface with the engine stopped. Use 4-stroke automotive oil.
SAE 10W-30 is recommended for general use, all temperature use. If viscosity oil is used, select the appropriate
viscosity for the average temperature in your area.
5
3) Connect the discharge hose.
Use a commercially available hose, hose connector and hose ban
large-diameter hose
is most efficient. Long or small
and reduces pump output.
Tighten the hose band securely to prevent th
underhigh pressure.
4) Check the engine oil level.
Every 10 hours, check the engine oil level and replenish oil up to th
neck if
the pump is operated for more than 10 hours continuously.
 Engine oil
is a major factor affecting engin
service life.Detergent or ve
getable oil is not recommended.

Be sure to check the engine oil on a level surface with the engine stopped.
Use 4-stroke automotive detergent oil.
SAE 10W-30 is recommended for
general use, all temperature use. I
is used,
select the appropriate viscosity for the average temperature in your area.
SAE Viscosity Grades
Use a commercially available hose, hose connector and hose ban
d. A short,
is most efficient. Long or small
-diameter hose increases fluid friction
Tighten the hose band securely to prevent th
e hose from disconnecting
Every 10 hours, check the engine oil level and replenish oil up to th
e top of the oil filler
the pump is operated for more than 10 hours continuously.
is a major factor affecting engin
e performance and
getable oil is not recommended.
Be sure to check the engine oil on a level surface with the engine stopped.
general use, all temperature use. I
f single viscosity oil
select the appropriate viscosity for the average temperature in your area.
SAE Viscosity Grades
5
3) Connect the discharge hose.
Use a commercially available hose, hose connector and hose ban
large-diameter hose
is most efficient. Long or small
and reduces pump output.
Tighten the hose band securely to prevent th
underhigh pressure.
4) Check the engine oil level.
Every 10 hours, check the engine oil level and replenish oil up to th
neck if
the pump is operated for more than 10 hours continuously.
 Engine oil
is a major factor affecting engin
service life.Detergent or ve
getable oil is not recommended.

Be sure to check the engine oil on a level surface with the engine stopped.
Use 4-stroke automotive detergent oil.
SAE 10W-30 is recommended for
general use, all temperature use. I
is used,
select the appropriate viscosity for the average temperature in your area.
SAE Viscosity Grades
Use a commercially available hose, hose connector and hose ban
d. A short,
is most efficient. Long or small
-diameter hose increases fluid friction
Tighten the hose band securely to prevent th
e hose from disconnecting
Every 10 hours, check the engine oil level and replenish oil up to th
e top of the oil filler
the pump is operated for more than 10 hours continuously.
is a major factor affecting engin
e performance and
getable oil is not recommended.
Be sure to check the engine oil on a level surface with the engine stopped.
general use, all temperature use. I
f single viscosity oil
select the appropriate viscosity for the average temperature in your area.
SAE Viscosity Grades
SAE VISCOSITY GRADES

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PRE-OPERATION CHECK
CAUTION
Using 2-stroke engine oil could shorten the engines service life. The recommended operating temperature range
of this engine is 5ºC to 40ºC
1. Place the engine horizontally on a level surface.
2. Remove the oil filler cap and check the oil level.
3. If the level is low, fill to the edge of oil filler hole with the recommended oil
CAUTION
Running the engine with insufficient oil can cause serious engine damage.
5) Check the fuel level.
Remove the fuel tank cap and check if the diesel fuel level is low. Use 0# diesel fuel for summer and 10# diesel fuel for winter.
• Diesel fuel oil is extremely flammable and is explosive under certain conditions.
• Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow flames or sparks in the refuelling area
or when diesel oil is stored.
• Do not overfill the tank (there should be no fuel above the upper limit mark). After refuelling, make sure the tank cap
is closed properly and securely.
• Be careful not to spill fuel when refuelling. Spilled fuel or fuel vapour may ignite, if any fuel is spilled, make sure the area is
dry before starting the engine.
• Avoid repeated or prolonged contact with skin or breathing of vapour.
KEEP OUT OF REACH OF CHILDREN.
• Fuel tank capacity:
• DK50 - 2.5L
6
Using detergent oil or 2-
storke engine oil cou
servicelife.
The recommended operating tempera
ture range of this engine is 5
1. Place the engine horizontally on a level surface.
2. Remove the oil filler cap and check the oil level.
3. If the level is low, fill to the edge of oil filler hole with the reco
Running the engine with insufficient oil can cause serious engine
damage
5) Check the fuel level.
Remove the fuel tank cap anda
ppropriable fuel for the diesel
tank if the fuel level is low. Theis 0# diesel
oil (for
dirty diesel oilfuel tanksummer) and 一
10# diesel oil (for winter).
and water in the fuel tank.

Diesel oil is extremely flammable and is explosive under certainconditions
 Refuel in a well-
ventilated area with the engine stopped. Do not smoke or allow
flames orsparks in the refueling area or when diesel oil is stored.

Do not overfill the tank (there should be no fuel above the upper limit mark).
Afterrefueling, make sure the tank cap is cl
osed properly and securely.

Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite, if
any fuelis spilled, make sure the area is dry before starting the engine.

Avoid repeated or prolonged contact with skin or breathing of vapor
OFREACH OF CHILDREN.
 Fuel tank capacity:
 50KB-2: 2.5L
 80KB-3: 3 .5L
storke engine oil cou
ld shorten the engine's
ture range of this engine is 5
℃to 40℃
1. Place the engine horizontally on a level surface.
2. Remove the oil filler cap and check the oil level.
3. If the level is low, fill to the edge of oil filler hole with the reco
mmended oil
Running the engine with insufficient oil can cause serious engine
ppropriable fuel for the diesel
check the level. Refill the
oil (for
Never use an oil/diesel oil mixture or
10# diesel oil (for winter).
Avoid getting dirt, dust
Diesel oil is extremely flammable and is explosive under certainconditions
ventilated area with the engine stopped. Do not smoke or allow
flames orsparks in the refueling area or when diesel oil is stored.
Do not overfill the tank (there should be no fuel above the upper limit mark).
osed properly and securely.
Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite, if
any fuelis spilled, make sure the area is dry before starting the engine.
Avoid repeated or prolonged contact with skin or breathing of vapor
. KEEP OUT
6
Using detergent oil or 2-
storke engine oil cou
servicelife.
The recommended operating tempera
ture range of this engine is 5
1. Place the engine horizontally on a level surface.
2. Remove the oil filler cap and check the oil level.
3. If the level is low, fill to the edge of oil filler hole with the reco
Running the engine with insufficient oil can cause serious engine
damage
5) Check the fuel level.
Remove the fuel tank cap anda
ppropriable fuel for the diesel
tank if the fuel level is low. Theis 0# diesel
oil (for
dirty diesel oilfuel tanksummer) and 一
10# diesel oil (for winter).
and water in the fuel tank.

Diesel oil is extremely flammable and is explosive under certainconditions
 Refuel in a well-
ventilated area with the engine stopped. Do not smoke or allow
flames orsparks in the refueling area or when diesel oil is stored.

Do not overfill the tank (there should be no fuel above the upper limit mark).
Afterrefueling, make sure the tank cap is cl
osed properly and securely.

Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite, if
any fuelis spilled, make sure the area is dry before starting the engine.

Avoid repeated or prolonged contact with skin or breathing of vapor
OFREACH OF CHILDREN.
 Fuel tank capacity:
 50KB-2: 2.5L
 80KB-3: 3 .5L
storke engine oil cou
ld shorten the engine's
ture range of this engine is 5
℃to 40℃
1. Place the engine horizontally on a level surface.
2. Remove the oil filler cap and check the oil level.
3. If the level is low, fill to the edge of oil filler hole with the reco
mmended oil
Running the engine with insufficient oil can cause serious engine
ppropriable fuel for the diesel
check the level. Refill the
oil (for
Never use an oil/diesel oil mixture or
10# diesel oil (for winter).
Avoid getting dirt, dust
Diesel oil is extremely flammable and is explosive under certainconditions
ventilated area with the engine stopped. Do not smoke or allow
flames orsparks in the refueling area or when diesel oil is stored.
Do not overfill the tank (there should be no fuel above the upper limit mark).
osed properly and securely.
Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite, if
any fuelis spilled, make sure the area is dry before starting the engine.
Avoid repeated or prolonged contact with skin or breathing of vapor
. KEEP OUT
UPPER LIMIT MARK

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PRE-OPERATION CHECK
6) Check the air cleaner element.
Remove the air cleaner cover by loosening the wing nut on the cover.
Check the element to be sure it is clean and in good condition.
If the element is dirty, clean it.
Replace the element if it is damaged.
Reinstall the element and air cleaner cover.
CAUTION
Never run the engine without the air cleaner result from contaminants, such as dust and dirt, getting into the engine.
7) Check that all nuts, bolts, and screws are tightened.
Tighten the bolts and nuts properly and securely, if necessary.
8) Check the priming water.
The pump chamber should be primed with full of water before operating.
• Never attempt to operate the pump without priming water, or the pump will overheat.
• Extended dry operation will destroy the pump seal. if the unit has been operated dry, stop the engine immediately
and allow the pump to cool before priming..
7
 100KB-4: 5.5L
6) Check the air cleaner element.
Remove the air cleaner cover by loosening the wing nut on th
cover.Check the element to be sure it
is clean and in good condition.
If the element is dirty, clean it. Replace the element if it is damaged.
Reinstall the element and air cleaner cover.
Never run the engine without the air cleaner
resultfrom contaminants,
such as dust and dirt, getting into the engine.
7) Check that all nuts, b
olts, and screws are tightened.
Tighten the bolts and nuts properly and securely, if necessary.
8) Check the priming water.
The pump
chamber should be primed with full of water before operating.

Never attempt to operate the pump without priming water, or the
pumpwill overheat.

Extended dry operation will destroy the pump seal. if the unit has been operated dry,
stopthe engine immediate
ly and allow the pump to cool before priming.
Remove the air cleaner cover by loosening the wing nut on th
e top of the air cleaner
is clean and in good condition.
If the element is dirty, clean it. Replace the element if it is damaged.
Never run the engine without the air cleaner
. Rapid engine wear will
such as dust and dirt, getting into the engine.
olts, and screws are tightened.
Tighten the bolts and nuts properly and securely, if necessary.
chamber should be primed with full of water before operating.
Never attempt to operate the pump without priming water, or the
Extended dry operation will destroy the pump seal. if the unit has been operated dry,
ly and allow the pump to cool before priming.
7
 100KB-4: 5.5L
6) Check the air cleaner element.
Remove the air cleaner cover by loosening the wing nut on th
cover.Check the element to be sure it
is clean and in good condition.
If the element is dirty, clean it. Replace the element if it is damaged.
Reinstall the element and air cleaner cover.
Never run the engine without the air cleaner
resultfrom contaminants,
such as dust and dirt, getting into the engine.
7) Check that all nuts, b
olts, and screws are tightened.
Tighten the bolts and nuts properly and securely, if necessary.
8) Check the priming water.
The pump
chamber should be primed with full of water before operating.

Never attempt to operate the pump without priming water, or the
pumpwill overheat.

Extended dry operation will destroy the pump seal. if the unit has been operated dry,
stopthe engine immediate
ly and allow the pump to cool before priming.
Remove the air cleaner cover by loosening the wing nut on th
e top of the air cleaner
is clean and in good condition.
If the element is dirty, clean it. Replace the element if it is damaged.
Never run the engine without the air cleaner
. Rapid engine wear will
such as dust and dirt, getting into the engine.
olts, and screws are tightened.
Tighten the bolts and nuts properly and securely, if necessary.
chamber should be primed with full of water before operating.
Never attempt to operate the pump without priming water, or the
Extended dry operation will destroy the pump seal. if the unit has been operated dry,
ly and allow the pump to cool before priming.
PRIMING WATER FILLER CAP

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STARTING THE ENGINE
5
1) Open the fuel valve.
2) Set the engine governor lever at START position.
3) Pull the starter grip until you feel resistance, then return it back gently.
4) Move the decompression handle to the no compression position. After the diesel enginestarted,
decompression handle will return back automatically.
5) On the cold days, when it is difficult to start the diesel engine, screw off the refuelling bolt in the cylinder cover
and fill in 2ml engine oil.
8
5. STARTING THE ENGINE
1) Open the fuel valve.
2) Set the engine governor lever
at START position.
3) Pull the starter grip until you feel resistance, then return it back gently.
4) Move the decompression handle to the no compression position. After the diesel
enginestarted, decompression handle will return back automatically.
5) In the cold days, when it is difficult to start the diesel engine, screw off the refueling
bolt inthe cylinder cover and fill in 2 ml engine oil.
8
5. STARTING THE ENGINE
1) Open the fuel valve.
2) Set the engine governor lever
at START position.
3) Pull the starter grip until you feel resistance, then return it back gently.
4) Move the decompression handle to the no compression position. After the diesel
enginestarted, decompression handle will return back automatically.
5) In the cold days, when it is difficult to start the diesel engine, screw off the refueling
bolt inthe cylinder cover and fill in 2 ml engine oil.
8
5. STARTING THE ENGINE
1) Open the fuel valve.
2) Set the engine governor lever
at START position.
3) Pull the starter grip until you feel resistance, then return it back gently.
4) Move the decompression handle to the no compression position. After the diesel
enginestarted, decompression handle will return back automatically.
5) In the cold days, when it is difficult to start the diesel engine, screw off the refueling
bolt inthe cylinder cover and fill in 2 ml engine oil.

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OPERATION
6) Hold the housing of the pump securely and pull the starter grip then pull briskly.
CAUTION
Do not allow the starter grip to engine snap back against the engine. Return it gently to prevent damaging the starter.
NOTE
Always pull the starter grip briskly. If not pulled briskly, it will result in failing to start the engine.
CAUTION
Never use the pump for muddy water, waste oil, wine etc. Do not pull the governor linkage to operate the engine forcibly
outside its design parameters.
Turn the governor lever to the desired engine speed position.
Discharge flow is controlled by adjusting the engine speed.
Moving the governor lever to the FAST position will increase the flow, and the SLOW position will decrease pump flow.
9
6) Hold the housing of the pump securely and pull the starter grip
thenpull briskly.
Do not allow the starter grip to engine snap
Returnit gently to
prevent damaging the starter.
Always pull thestarter grip
briskly. If not pulled briskly, it will result in
failing to start the engine
6. OPERATION
Never use the pump for muddy
the governor linka
ge to operate
parameters.
Turn the governor lever to the desired engine speed position.
Discharge flow is controlled by adjusting the engine speed. M
theFAST position will increase the f
low, and the SLOW position will decrease pump
flow..
6) Hold the housing of the pump securely and pull the starter grip
until you feel resistance,
Do not allow the starter grip to engine snap
back against the engine.
prevent damaging the starter.
briskly. If not pulled briskly, it will result in
Never use the pump for muddy
water, rejected oil, wine, etc.Do not pull
ge to operate
the engine forcibly outside itsdesign
Turn the governor lever to the desired engine speed position.
Discharge flow is controlled by adjusting the engine speed. M
oving the governor lever to
low, and the SLOW position will decrease pump
9
6) Hold the housing of the pump securely and pull the starter grip
thenpull briskly.
Do not allow the starter grip to engine snap
Returnit gently to
prevent damaging the starter.
Always pull thestarter grip
briskly. If not pulled briskly, it will result in
failing to start the engine
6. OPERATION
Never use the pump for muddy
the governor linka
ge to operate
parameters.
Turn the governor lever to the desired engine speed position.
Discharge flow is controlled by adjusting the engine speed. M
theFAST position will increase the f
low, and the SLOW position will decrease pump
flow..
6) Hold the housing of the pump securely and pull the starter grip
until you feel resistance,
Do not allow the starter grip to engine snap
back against the engine.
prevent damaging the starter.
briskly. If not pulled briskly, it will result in
Never use the pump for muddy
water, rejected oil, wine, etc.Do not pull
ge to operate
the engine forcibly outside itsdesign
Turn the governor lever to the desired engine speed position.
Discharge flow is controlled by adjusting the engine speed. M
oving the governor lever to
low, and the SLOW position will decrease pump
5
6 OPERATION

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STOPPING THE ENGINE
1) First bring down the speed of the engine by using the speed governor. Let it run for 3 minutes at no load before stopping it.
2) Then move the governor lever to the STOP position.
3) Turn the fuel valve in the fuel tank to the OFF position.
4) If the engine comes with an electric starter, turn the starting switch to the OFF position. After use, remove the pump drain
plug, and the filler cap, flush the pump chamber with clean,fresh water. Allow the water to drain from the chamber, then
reinstall the filler cap and drainplug.
10
7. STOPPING THE ENGINE
1) First bring down the speed of the engine by using the speed governor. Let it run for 3
minutes at no load before stopping it.
2) Then move the governor lever to the STOP position.
3) Turn the fuel valve in the fuel tank to the OFF position.
4) If the engine comes with an electric starter, turn the starting switch to the OFF position.
After use, remove the pump drain plug, and the filler cap, flush the pump chamber with
clean,fresh water. Allow the water to drain from the chamber, then reinstall the filler cap
and drainplug.
8. ENVIRONMENTAL PROTECTION
Please arrange for the proper disposal of the packaging.
The packaging material can be recycled.
Please do not place the packaging into the ordinary refuse bin fordisposal, but
arrange for the proper recycling.
Please arrange for the proper disposal of the old appliance.
Old appliances contain valuable materials that can be recycled. Please
arrange for the proper recycling of old appliances. Batteries, oil, and
similar substances must not enter the environment. Please dispose of your old
appliances using appropriate collection systems.
7
PLEASE ARRANGE FOR THE PROPER DISPOSAL OF THE PACKAGING
The packaging material can be recycled.
Please do not place the packaging into the ordinary refuse bin fordisposal, but arrange for the proper recycling.
PLEASE ARRANGE FOR THE PROPER DISPOSAL OF THE OLD APPLIANCE
Old appliances contain valuable materials that can be recycled.
Please arrange for the proper recycling of old appliances.
Batteries, oil, and similar substances must not enter the environment.
Please dispose of your old appliances using appropriate collection systems.
8 ENVIRONMENTAL PROTECTION

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MAINTENANCE
9.
Periodic inspection and adjustment of the pump are essential if high to be maintained. Regular maintenance will also help
to extend ser service intervals and the kind of maintenance to be performed are described in the table below.
WARNING
• Shut off the engine before performing any maintenance.
• If the engine must be run, make su well-ventilated.
The exhaust contains poisonous carbon monoxide gas, exposure can cause loss of consciousness and may lead to death.
CAUTION
If the pump has been used with seawater, water immediately afterward to reduce corrosion or remove sediment.
NOTE:
1) Service more frequently when used in dusty areas.
2) Change engine oil every 25 hours when used under heavy load or high ambient temperature.
12
Maintenance schedule
INTERVALS
(hours) INEM
Before
each use
First
month
or 20hrs
First
year or
50hrs
First
year or
100hrs
First
year or
200hrs
First
year or
500hrs
First
year or
1000hrs
All bolts and nuts check ○
Check and replenish oil ○
Change lube oil ○(first)
○
(second
)
Clean oil filter ○
Check for oil leakage ○
Air cleaner element
replacement
○
Clean or replace fuel
filter ○(first) ○(clean)
○
(replace
)
Check fuel injection ○
Check fuel injection
pump
○
Adjust valve clearance
of intake and exhaust
○
Check in take and
Exhaust valves base
○
Replace piston ring ○
NOTE:
(1) Service more frequently when used in dusty areas.
(2) Change engine oil every 25 hours when used under heavy load or high ambient
temperature.

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MAINTENANCE
1) Change oil
Drain the oil while the engine is still warm to assure
1) Remove the oil filler cap and drain plug, to drain the oil.
2) Install the drain plug, and tighten it securely.
3) Refill with the recommended oil and check the oil level.
4) Install the oil filler cap.
Engine oil capacity: DK50 - 0.75L
WARNING
Wash your hands with soap and water after handling used oil. The diesel fuel and engine oil are harmful for your health.
To change them must wear protective equipment.
CAUTION
Please dispose of used engine oil in a manner that is compatible with the environment.
We suggest you take it in a sealed container to your local service station.
Do not throw in the trash or pour it on the ground.
2) Air cleaner service
A dirty air cleaner element will restrict the air flow, hard starting,the exhaust of black smoke.
To prevent pump operating the pump resulting in malfunction service the loss of output and cleaner regularly.
Service more frequently when in extremely dusty areas.
WARNING
Do not use diesel fuel or low flash point are flammable and explosive under certain conditions.
CAUTION
Never run the pump without the air cleaner result from contaminants such as dust and dirt being drawn into the engine.
13
1) Change oil
Drain the oil while the engine is still warm to assure
(1) Remove the oil filler cap and drain plug, to drain the oil.
(2) Install the drain plug, and tighten it securely.
(3) Refill with the recommended oil and check the oil level.
(4) Install the oil filler cap.
Engine oil capacity: 5OKB-2:0.75L 80KB-
3:1L 100KB
Wash your hands with soap and water after handling used oil.
The gasoline and engine oil are harmful for
them by
hand. To change them must wear protective equipment.
Please
dispose of used engine oil in a manner that is compatible with the
environment. We suggest you take it in a sealed container to your local
service station. Do not throw in the trash or pour it on the ground.
2) Air cleaner service
A dirty air cleaner eleme
nt will restrict the air flow,hard starting,the exhaust of black
smoke.To prevent pumpoperating the pumpresulting inmalfunctionservice theloss of
output andcleaner regularly.Service more frequently when
Do not use diesel oil or lo
w flash point
are
flammable and explosive under certain conditions.
Never run the pump without the air cleaner
result
from contaminants such as dust and dirt being drawn into the
engine.
Drain the oil while the engine is still warm to assure
rapid and complete draining.
(1) Remove the oil filler cap and drain plug, to drain the oil.
(3) Refill with the recommended oil and check the oil level.
3:1L 100KB
-4:1.62L
Wash your hands with soap and water after handling used oil.
The gasoline and engine oil are harmful for
healthy, so don't touch
hand. To change them must wear protective equipment.
dispose of used engine oil in a manner that is compatible with the
environment. We suggest you take it in a sealed container to your local
service station. Do not throw in the trash or pour it on the ground.
nt will restrict the air flow,hard starting,the exhaust of black
smoke.To prevent pumpoperating the pumpresulting inmalfunctionservice theloss of
output andcleaner regularly.Service more frequently when
in extremely dusty areas.
w flash point
solvents for cleaning. They
flammable and explosive under certain conditions.
Never run the pump without the air cleaner
. Rapid engine wear will
from contaminants such as dust and dirt being drawn into the

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MAINTENANCE
2) Air cleaner service
1) Remove the air cleaner cover by loosening the wing nut.
2) Wash the element in a non flammable or high flash point solvent and dry it thoroughly.
3) Soak the element in clean engine oil and squeeze out the excess oil.
4) Reinstall the air cleaner element.
5) Reinstall the air cleaner cover, then screw on the wing nut and tighten it securely.
3) Cleaning and replacing the fuel filter.
Remove the fuel filter from the fuel tank, then wash or replace it.
Clean: every 6 months or 500 hours.
Replace: every year or 1000 hours.
1) Drain the fuel from the fuel tank thoroughly.
2) Screw off two nuts in the fuel valve, remove the fuel filter from the fuel tank.
If the engine has been running, the muffler wil to cool before proceeding.
14
(1) Remove the air
cleaner cover by loosening the wing nut.
(2)Wash the element in a nonflammable or high flash point solvent and dry it thoroughly.
(3) Soak the element in clean engine oil and squeeze out the excess oil.
(4) Reinstall the air cleaner element.
(5) Reinstall
the air cleaner cover, then screw on the wring nut and tighten it securely.
3) Cleaning and replacing the fuel filter.
Remove the fuel filter from the fuel tank, then wash or replace it.
Clean: every 6 months or 500 hours.
Replace: every year or 1000 hours.
(1) Drain the fuel from the fuel tank thoroughly.
(2) Screw off two nuts in the fuel valve, remove the fuel filter from the fuel tank.
If the engine has been running, the muffler wil
to coolbefore proceeding.
cleaner cover by loosening the wing nut.
(2)Wash the element in a nonflammable or high flash point solvent and dry it thoroughly.
(3) Soak the element in clean engine oil and squeeze out the excess oil.
the air cleaner cover, then screw on the wring nut and tighten it securely.
Remove the fuel filter from the fuel tank, then wash or replace it.
(2) Screw off two nuts in the fuel valve, remove the fuel filter from the fuel tank.
If the engine has been running, the muffler wil
l be very hot. Allow it
14
(1) Remove the air
cleaner cover by loosening the wing nut.
(2)Wash the element in a nonflammable or high flash point solvent and dry it thoroughly.
(3) Soak the element in clean engine oil and squeeze out the excess oil.
(4) Reinstall the air cleaner element.
(5) Reinstall
the air cleaner cover, then screw on the wring nut and tighten it securely.
3) Cleaning and replacing the fuel filter.
Remove the fuel filter from the fuel tank, then wash or replace it.
Clean: every 6 months or 500 hours.
Replace: every year or 1000 hours.
(1) Drain the fuel from the fuel tank thoroughly.
(2) Screw off two nuts in the fuel valve, remove the fuel filter from the fuel tank.
If the engine has been running, the muffler wil
to coolbefore proceeding.
cleaner cover by loosening the wing nut.
(2)Wash the element in a nonflammable or high flash point solvent and dry it thoroughly.
(3) Soak the element in clean engine oil and squeeze out the excess oil.
the air cleaner cover, then screw on the wring nut and tighten it securely.
Remove the fuel filter from the fuel tank, then wash or replace it.
(2) Screw off two nuts in the fuel valve, remove the fuel filter from the fuel tank.
If the engine has been running, the muffler wil
l be very hot. Allow it

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TRANSPORTING / STORAGE
10.
WARNING
• To avoid severe burns or fire hazards, let the engine cool before transporting the pump or storing it indoors.
• When transporting the pump, turn the fuel valve to the OFF position, keep the pump level and make sure
the tank cap is installed securely. Spilled fuel or fuel vapour may ignite.
Before storing the pump for an extended period
1) Be sure the storage area is free of excessive humidity and dust.
2) Clean the pump interior
Sediment will settle in the pump if it has been used in muddy, containing heavy debris.
3) Drain the fuel
a. Drain the diesel oil in the fuel tank into the suitable container, tipping the pump slightly prevents the control parts
to not be contaminated by the drained diesel oil.
b. Retighten the fuel valve again.
Pump clean water through the pump before shutting down, or impeller may be damaged when restarting.
After flushing, remove the pump drain plug, drain as much water as possible from the pump housing and reinstall the plug.
4) Replace the engine oil.
5) Clean the air cleaner.
6) Pull the starter grip until resistance is felt. This will close the valves so moisture cannot enter the engine cylinder,
and protect the engine from dust and corrosion. Return the starter gently.
7) Cover the pump to keep out dust.
15
10. TRANSPORTING/STORAGE
 To avoidsever
burns or fire hazards, let the
beforetransporting the pump or storing it indoors.

When transporting the pump, turn the fuel valve to the OFF position,keep the
pump level and make sure the tank cap
vapor may ignite.
Before storing thepump for an extended period.
1) Be sure the storage area is free of excessive humidity and dust.
2) Clean the pump interior.
Sediment will settle in the pump if it has been used in muddy,
containingheavy debris.
3) Drain the fuel
a. Drain the diesel oil in the fuel tank into the suitable container,
lestthe control part should not be
contaminated by the drained diesel oil.
b. Retighten the fuel valve again.
Pump clean water through the pump before shutting down,
when
restarting. After flushing, remove the pump drain plug, drain
possible fromt
he pump housing and reinstall the plug.
burns or fire hazards, let the
engine cool
beforetransporting the pump or storing it indoors.
When transporting the pump, turn the fuel valve to the OFF position,keep the
pump level and make sure the tank cap
is installed securely. Spilledfuel or fuel
1) Be sure the storage area is free of excessive humidity and dust.
Sediment will settle in the pump if it has been used in muddy,
sandy water or water
a. Drain the diesel oil in the fuel tank into the suitable container,
tipping the pump slightly
contaminated by the drained diesel oil.
Pump clean water through the pump before shutting down,
or impeller may be damaged
restarting. After flushing, remove the pump drain plug, drain
as much water as
he pump housing and reinstall the plug.
16
4) Replace the engine oil.
5) Clean the air cleaner.
6) Pull the starter grip until resistance is felt. This will close the valves so moisture cannot
enterthe engine cylinder, and protect the engine from dust and corrosion. Return the
starter gently.
7) Cover the pump to keep out dust.
11. TROUBLESHOOTING
When the engine will not start:
1) Is the diesel oil used appropriate?
2) Is there enough oil in the engine?
3) Is the fuel valve ON?
4) Is there fuel in the fuel tank?
5) Is the injection timing correct? Adjust the thickness of the shim packs.
6) Is the atomization ofthe injection nozzle bad? Clean or replace the injection nozzle.
If any fuel is Spilled, make surethearea isdry before starting the engine. spilled fuel or
fuel vapor may ignite
When the pump cannot pump the water:
1) Is the pump fully primed?

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TROUBLESHOOTING
When the engine will not start:
1) Is the diesel oil used appropriate?
2) Is there enough oil in the engine?
3) Is the fuel valve ON?
4) Is there fuel in the fuel tank?
5) Is the injection timing correct? Adjust the thickness of the shim packs.
6) Is the atomization ofthe injection nozzle bad? Clean or replace the injection nozzle.
If any fuel is spilled, make sure the area is dry before starting the engine. Spilled fuel or fuel vapour may ignite
When the pump cannot pump the water:
1) Is the pump fully primed?
2) Is the strainer clogged?
3) Are the hose bands installed securely?
4) Are the hose damaged?
5) Is the suction head too high?
11.
16
4) Replace the engine oil.
5) Clean the air cleaner.
6) Pull the starter grip until resistance is felt. This will close the valves so moisture cannot
enterthe engine cylinder, and protect the engine from dust and corrosion. Return the
starter gently.
7) Cover the pump to keep out dust.
11. TROUBLESHOOTING
When the engine will not start:
1) Is the diesel oil used appropriate?
2) Is there enough oil in the engine?
3) Is the fuel valve ON?
4) Is there fuel in the fuel tank?
5) Is the injection timing correct? Adjust the thickness of the shim packs.
6) Is the atomization ofthe injection nozzle bad? Clean or replace the injection nozzle.
If any fuel is Spilled, make surethearea isdry before starting the engine. spilled fuel or
fuel vapor may ignite
When the pump cannot pump the water:
1) Is the pump fully primed?
17
2) Is the strainer clogged?
3) Are the hose bands installed securely?
4) Are the hose damaged?
5) Is the suction head too high?
12. SPECIFICATION
Type 2in 3in 4in 6in 178F15H 178F20H 186F30H
Inlet outlet
caliber(mm)
50(2") 80(3") 100(4") 150(6") 38(1.5")
50(2") 80(3")
Max flow(
m
�
/h)
22 36 64 145 20 30 40
Single-cylinder,4-stroke air-cooled diesel engine
Pump life(m) 25 28 25 28 57 65 70
Max.Suction
Head(m)
7 7 7 6 7 7 7
Weight 37 45 65 136 45 48 65
Displacement(cc) 211 296 406 498 296 296 406
Engine Type 170F 178F 186F 192F 178F 178F 186F
Rated
output[kW(HP)]
2.5(3.4) 3.8(5.2) 6.5(9.0) 8.2(11) 3.8(5.2) 3.8(5.2) 6.5(9.0)
Rated Speed 3000 3000 3000 3000 3000 3000 3000
Dimension
(L*W*H)(mm)
535*420*510 560*455*560 660*490*610 7855*575*805 560*455*560 560*455*560 660*490*610
17
2) Is the strainer clogged?
3) Are the hose bands installed securely?
4) Are the hose damaged?
5) Is the suction head too high?
12. SPECIFICATION
Type 2in 3in 4in 6in 178F15H
178F20H
186F30H
Inlet outlet
caliber(mm)
50(2") 80(3") 100(4") 150(6") 38(1.5")
50(2") 80(3")
Max flow(
m
�
/h)
22 36 64 145 20 30 40
Single-cylinder,4-stroke air-cooled diesel engine
Pump life(m) 25 28 25 28 57 65 70
Max.Suction
Head(m)
7 7 7 6 7 7 7
Weight 37 45 65 136 45 48 65
Displacement(cc)
211 296 406 498 296 296 406
Engine Type
170F 178F 186F 192F 178F 178F 186F
Rated
output[kW(HP)]
2.5(3.4) 3.8(5.2) 6.5(9.0) 8.2(11) 3.8(5.2) 3.8(5.2) 6.5(9.0)
Rated Speed 3000 3000 3000 3000 3000 3000 3000
Dimension
(L*W*H)(mm)
535*420*510 560*455*560 660*490*610 7855*575*805 560*455*560 560*455*560 660*490*610
12 SPECIFICATIONS