EN
27
TROUBLESHOOTING
Problem
Possible cause
Action
The motor does not start when
the power switch is pressed.
Fault in power cord, plug and/
or power point.
Have the power cord, plug
and/or power point checked
and repaired.
Fault in power cord, plug and/
or power point.
Have the power switch
replaced.
Tool makes abnormal noise
and the motor does not start,
or runs slowly when the power
switch is switched on.
Fault in the power switch
contacts.
Have the power switch
replaced.
Blocked components.
Have the tool checked and
repaired.
The motor speed drops as a
result of overloading.
Reduce the load.
The engine overheats.
Foreign object in the motor.
Remove foreign object.
Lack of lubricant, or
contaminated lubricant.
Add or change lubricant.
Pressure is too high.
Reduce the load.
Lots of sparks from the
commutator.
Short-circuited rotor.
Have the rotor replaced.
Worn or blocked carbon
brushes.
Have the carbon brushes
checked, and if necessary
replaced.
Uneven surface on the
commutator.
Clean or polish the surface of
the commutator.
Summary of Contents for 009-016
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