Idiomas disponibles
Idiomas disponibles
For malfunctions that are not specified in this chapter, when in doubt or when explicitly indicated, seek assis-
tance from an authorized service facility.
Problem
The motor doesn't work.
Motor makes too much
noise.
Motor mildly overheats.
Motor runs. Core bit
doesn't rotate.
Rate of drilling progress
decreases.
16
Troubleshooting
Possible cause
Defective cable of plug.
Defective switch.
The carbon brushes of the machine are
worn.
Defective motor.
Damaged windings.
The carbon brushes of the machine are
almost worn.
Motor overload.
Motor doesn't cool sufficiently
Gearing defective.
Core bit segments polished.
Water pressure/water flow rate too
high.
The core is stuck in the core bit.
Maximum drilling depth reached.
Core bit defective.
Gearing defective.
The clutch is releasing prematurely or
slipping.
Possible solution
PRCD protective switch is not switched
on, test!
Have inspected by a electrical specialist
and replaced if necessary.
Contact customer service.
Contact customer service.
Contact customer service. Never repair
the motor yourself. Danger!
Have the motor inspected by customer
service.
Have the motor inspected by customer
service.
Prevent motor overload when drilling.
Remove the dust from the motor, so that
the cool air can flow.
Have the machine inspected by the
service facility.
Sharpen the core bit on a sharpening
plate while water is flowing.
Use the feed lever to reduce the water
flow rate.
Remove the core.
Remove the core and use a core bit
extension.
Check the core bit for damage and
replace if necessary.
Have the machine repaired at a service
center.
Have the machine repaired at a service
center.
