Repair instructions
8. Troubleshooting
Fault
Cause
Remedy
M t
t
i
C
ti
bl i d
d
Ch
k
Motor not running.
Connecting cable is damaged.
Check passage.
Cable disconnected from switch.
Check cable.
Switch is defective.
Check passage.
Motor is running out of
round. Speed fluctuates.
Bearing / gearbox is defective.
Rotor out of balance.
Check components.
Earthing conductor
Screw connections on earthing bar are
Check screw connections.
g
resistance too high.
g
loose.
Connecting cable is damaged.
Check passage.
Insulating resistance is too
Tool is dirty
Clean tool thoroughly
Insulating resistance is too
low.
Tool is dirty.
Clean tool thoroughly.
Drive spindle rotating in
wrong direction.
Incorrect wiring.
Modify wiring to change rotating
field.
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