10
GB
implementa
in accordance with na
law, electric tools that have reached the end of their life must
be collected separately and returned to an environmentally compa
recycling facility
TROUBLE SHOOTING
Fault Symptom
Possible Cause
Tr
Electric motor out of
service
Disc
etween plug and power
socket
Put plug in power socket
shortcircuit in power supply
Repair and rec
At switch-o
ff
Switch on
Loose switching contact
Replace switchboard by repairer
Burnout of stator coil
Replace stator by repairer
Stator wiring disc
Rec
by repairer
tripout due to improper closing of movable
guard
Shut down movable guard again
Electric circuit disc
Check electric circuit c
by
repairer
Sluggish start-up of
electric motor, falling
short of running speed
Unsmooth running in mechanical part
Check mechanical part by repairer
Burnout of switching contacts
Repair or replace switchboard by
repairer
Capacitor damage
Replace capacitor by repairer
Low supply voltage
Regulate supply voltage
Excessive running noise Electric motor at fault
Check motor by repairer
Stopover in mechanical running gear or
damage in bearing
Check mechanical part by repairer
Severe wear in bearing or edge
Replace bearing, stator or rotor
stator/rotor
Failed to reach full
power
Electrocircuit overload due to ligh
de
appliances
electric appliances on machine-
connected electrocircuit
Failed to reach rated
power
Electromotor overload
Overload prot
Insu
fficie
nt motor cooling
Dedust electric motor
Bearing overhea
to de
ficie
nt
lubrica
excessive thick lubrica
or bearing full of grease stain
Supplement or replace lubrica
and clean up bearing
Stopover or damage in bearing
Replace bearing by repairer
Damage in capacitor
Replace capacitor by repairer
Excessiv
ht in belt
Properly regulate belt
Substandard auger
boring quality
Wearout of drilling bit
Replace drilling bit
Improper adjustment of driving belt
Readjust driving belt
Driving blet tensile elonga
speed drop due to wearout in driving belt
Replace driving belt
Wearout of driving belt or belt fracture
Replace driving wheel or driving belt
Disc
etween drill chuck and
main drilling spindle
Re
fi