If the unit is not used over some extended period of time, the water in the pump ought to be fully drained. Please
allow the pump to dry completely in order to prevent corrosion. Likewise, the fuel tank and the carburetor should
be emptied, too. On the units with auto-lubrication, the motor oil should be drained as well. Prior to placing the
unit in storage, it should be cleaned thoroughly and afforded some kind of preservation, should this be advisable.
Please make sure that the device is stored in a dry and frost-proof place.
If the water pump is used to pump slightly dirty water, a residue can be left in the pump. Before storage, take in
clean water with the water pump, in order to clean it.Otherwise, the pump impeller may be damaged when it is put
in service again. To clean the pump, unscrew the drain plug (2) from the pump and drain the pump
thoroughlyTroubleshooting
We decline any liability for damage caused by inappropriate repair attempts. Any damage
caused by inappropriate repair attempts will avoid all warranty claims.
None of the remedial actions listed below must be performed with the engine running.
The list below shows some cases of malfunction of the device, possible causes and tips on how to eliminate
them. None of the remedial actions specified must be performed while the engine is running. If you yourself
should feel unable to remove a malfunction, please contact the customer service department or your point of sale.
Any repair beyond the scope specified below must only be performed by qualified staff. Always keep in mind that
damage caused by improper repair attempts will void any warranty claims and that we decline any liability for
ensuing damage.
Should any malfunction occur, please check first whether a faulty operation or any other cause is present, i.e. that
the malfunction was not caused by a defect on the side of the device, for instance by a lack of fuel.
Malfunction
1. The pump does not
1. Not enough liquid in the pump.
discharge any liquid
at all or only a small
2. Leakage in the intake line.
quantity, engine is
running.
3. Selected motor performance too low.
4. Filter at the inlet of the intake line is
clogged.
5. Intake line is clogged.
6. Pump wheel is blocked by foreign
matters.
7. Suction height and/or discharge height
too high.
8. Mechanical shaft seal is defective.
9. Pump wheel is not properly seated.
10. Pump wheel is damaged.
11. Motor is not running smoothly.
2. Vibration or loud
1. Suction height and/or discharge height to
noise during
high.
operation.
2. Intake line and/or pump wheel blocked
by foreign matters.
3. Instable installation.
4. Unit is not standing firmly.
5. Pump wheel is damaged.
6. Other technical defect.
3. Motor does not
1. Lack of fuel.
start or stop to run
2. Absence of ignition spark.
during operation.
3. Clogged carburettor.
4. Clogged air filter.
5. On a model with auto-lubrication, the
auto-stop feature was activated because
the motor oil level had dropped below
required minimum.
6. Other technical defect.
20
Possible cause
9
Translation of the Original Operating Instructions
Elimination
1. Fill pump housing through filling opening
with liquid.
2. Check intake line and its connections. If
required, seal connection parts of intake line
with Teflon tape. Replace intake line if it
shows damage which cannot be repaired.
3. Increase motor performance.
4. Clean filter.
5. Clean intake line.
6. Remove foreign matters.
7. Modify the arrangement so that the
suction height and/or discharge height do not
exceed the maximum value any longer.
8. Replace mechanical shaft seal.
9. Arrange pump wheel properly.
10. Replace pump wheel.
11. Contact customer service.
1. Modify the arrangement so that the
suction height and/or discharge height do not
exceed the maximum value any longer.
2. Remove foreign matter.
3. Stabilise the installation.
4. Arrange unit firmly.
5. Replace pump wheel.
6. Contact customer service.
1. Open fuel cock and/or fill in fuel.
2. Check ignition switch. If required, check
the spark plug.
3. Clean carburetor.
4. Clean air filter.
5. Top up motor oil.
6. Contact customer service.