20
7.
Troubleshooting
Fault
Possible cause
Remedy
Excessive vibration
And / or unusual noises
Imbalance due to worn or broken grinding
tools.
Worn out flexible coupling
Debris or dirt deposit between the grinding
disc and the coupling.
Defective bearing.
Replace all worn or broken parts.
Replace the flexible coupling
Clean the coupling and grinding disc.
Check the bearing on the axle drive shaft
and replace if necessary.
Reduced or no grinding
performance
Grinding tools have reached the maximum
permissible wear.
Inappropriate grinding tool for the
application.
Replace the worn parts.
Replace the grinding tools with
appropriate grinding tools for the surface
to be treated.
Motor does not switch on
Missing phase / Wrong power supply
Defective Component.
The belt with the remote control is not
secured around the middle of the body.
Check the mains power supply and next
switch on again.
Find fault and replace defective
component.
Make sure the remote control is in a
horizontal position, tilting the remote
control too much will activate the safety
feature. (Which shuts down the machine
if the operator falls down.)
Motor triggers while
running
Motor protection switch triggered because of
overload.
Motor has a defect.
Reduce additional load .
Check the motor.
