DRIVE SYSTEM
ENGLISH
SERVICE MANUAL
90
909 6756 000(
5)2010-03
BA 451 / BA 451D / BA 531 / BA 531D / BA 551 / BA 551D / BA 551CD / BA 611D
CA 451 / CA 531 / CA 551
DRIVE SYSTEM MOTOR CARBON BRUSH CHECK AND REPLACEMENT (For BA 451D, BA 531D, BA
551D, BA 551CD, BA 611D)
Drive the machine to the appointed disposal area, and empty the recovery water tank (21) with the hose (16).
1.
Place the machine on a hoisting system (if available).
2.
Otherwise, drive the machine on a level floor.
Turn the ignition key (80) to “0”.
3.
Disconnect the battery connector (12).
4.
Operating on the left side of the machine, clean the drive system motor (B) in the area of the covers (A).
5.
Unscrew the covers (A) and remove the carbon brushes (C).
6.
Check if the carbon brushes (C) are worn. Replace the carbon brushes when: the contact with the motor armature is
7.
insufficient, the carbon brushes are worn, the carbon brush contact surface is not integral, the thrust spring is broken, etc.
If necessary, replace the carbon brushes. Replace the carbon brushes as an assembly.
Assemble the components in the reverse order of disassembly.
8.
B
S301563
