ENGLISH
SERVICE MANUAL
62
909 6424 000(3)2007-12
BR 601 / BR 651 / BR 751 / BR 751 C
DRIVE SYSTEM
DRIVE SYSTEM MOTOR SLIDING CONTACT CHECK AND REPLACEMENT (Machines after January
2007)
Check and replacement
Drive the machine to the appointed disposal area, and empty the recovery water tank (58) with the hose (22).
Empty the washing water tank (59) with the tap (36).
Place the machine on a hoisting system (if available).
Otherwise, drive the machine on a level fl oor.
Turn the ignition key (12) to "0".
Carefully lift the tank assembly (60).
Disconnect the battery connector (63).
Remove the screws (A), then remove the sliding contact cover (B).
Disconnect the sliding contact connections (C).
Remove the sliding contact mounting screws (D) and nuts (E). Recover the washer (E).
Remove both sliding contacts (G).
Check the sliding contacts (D) for wear. Replace the sliding contacts when: the contact with the sliding ring is insuffi cient, the
sliding contacts are worn, the contact surface is not integral, the thrust spring is broken, etc.
If necessary, replace the sliding contacts.
Reset
Assemble the components in the reverse order of disassembly, and note the following:
The sliding contact surface (H) must be turned downwards, as shown in the fi gure.
C
C
A
A
B
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