64
05-7175-00-00.fm
Maintenance and Servicing
5.6.2
Changing the brushes
Use the indicator
Fig. 28-A
on the brush head to:
• determine the wear of the brushes.
• determine whether the brushes have been assembled.
Change the brushes at the latest when the red pointer is in the red zone.
1. Decouple the brushes, see section 5.6.3.
2. Couple the new brushes, see section 5.6.4.
5.6.3
Decoupling the brushes
Variant 7175.1x:
To decouple the brush, push button
Fig. 27-44
for approx. 5 seconds until the
four consecutively flashing symbols in the display panel have gone out.
After the brush has been decoupled, the upper or lower symbol bar flashes
alternately. The machine is not ready. To complete brush decoupling,
acknowledge the process with the key switch OFF/ON.
Variant 7175.2x/.30:
1. Turn off the machine.
2. To decouple the brushes, press down the lever
Fig. 27-8
with your foot.
Attention
If
no
brushes have been assembled, the red pointer is in the
red
zone
of the indicator.
Fig. 28:
A