11 Maintenance
46
100_0101_mt_0007.fm
Checking/replacing the carbon brushes
Performing preparations
1. On/Off-switch OFF.
2. Wait until the HMS has come to a complete standstill.
3. Pull the plug from the plug receptacle.
4. Remove any dirt around the cap.
Removing the carbon brushes
1. Unscrew the caps (on both sides of the drive motor) with a suitable flat-head
screwdriver and remove with the O-ring.
2. Mark the position and location of the carbon brush with a pencil for reinstall-
ing.
3. Remove carbon brush.
WARNING
Improper replacement of parts.
Danger of electrocution.
X
Only a qualified electrician is permitted to replace parts and perform a sub-
sequent safety check according to the directives in effect.
Item
Designation
Item
Designation
1
Cap
3
Carbon brushes
2
O-ring
4
Minimum length 10mm (0.4 in)