Driving Wheel System 123
Service Manual – SC3000
Drive system motor carbon brush check/replacement
Check and replacement
1.
Drive the machine on a level floor.
2. Turn the ignition key to “0” and disconnect the
batteries.
3. Remove the electromagnetic brake (see the
procedure in the relevant paragraph).
4. Remove the drive system motor (see the
procedure in the relevant paragraph).
5. At the workbench, with indelible pen (A) mark
the installation position of the flange on the
drive system motor.
6.
Remove the screws (B), the flange (C) and the
plastic ring (D).
7. Disengage the spring (E) and remove the 2
carbon brushes (F).
8. Check the carbon brushes for wear.
9. The carbon brushes are worn when the contact
with the motor armature is insufficient, the
contact surface is not even, the thrust spring is
broken, etc.
10. If necessary, replace the carbon brushes.
Reset
11. Assemble the components in the reverse order of
disassembly, and note the following:
◦
Clean with compressed air the area around
the carbon brushes and the removed compo-
nents.
◦
Assemble the carbon brushes (F) with the
cables (G) positioned as shown in the figure.
◦ Install the flange (C) on the drive system mo
-
tor using the mark (A) as reference.
D
E
F
C
A
B
B
F
G
P100390
