22
6. Service
Otherwise contact your distributor.
Malfunction
Cause
Remedial action
Handpiece does not
start.
The speed display on the
controller does not show
any display
The speed of the hand-
piece does not increase
Check whether the controller
is switched on and the motor
speed display is lit.
Check whether the chuck of
the handpiece is closed (check
that the tool is firmly seated)
Check whether the handpiece
is plugged into the controller.
Check whether the foot pedal
is plugged into the controller.
Check whether the controller
is switched on (On/Off switch
11)
Check whether the controller
is connected to the mains
supply.
Check whether the fuse in the
controller (mains cable con-
nector) has blown.
The maximum speed of the
handpiece must be set with
the speed knob (D50).
The maximum speed of the
handpiece must be set with
the safety switch T2 (K50)
Unplug the mains cable 20
and plug it in again; switch
on the mains switch 110,
see 1.2.
Open and close the chuck
mechanism.
Plug in and secure the
handpiece cable (see 0.4 &
0.6). Plug in and secure the
foot pedal (see 0.6)
Unplug the power cable
and plug it in again. Switch
on the On/Off switch 11.
Replace the fuse
(see 2.4)
Adjust the setting with the
speed knob 24.
Adjust the safety switch T2
(see 1.1)
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