Vacuum Motor Carbon Brush Check And Replacement - Nilfisk-Advance BA 600S Service Manual

VACUUM MOTOR CARBON BRUSH CHECK AND REPLACEMENT

1. Drain the recycling water, if any, from the related tank (70) by using the pipe (36).
2. Drain the solution, if any, from the related tank (71) by using the pipe (37).
3. Position the machine on a level ground.
4. Turn the ignition key (10) to "0" position.
5. Disconnect the battery connector (40).
6. Unscrew the handwheel (66).
7. Hold the handlebar (2) and carefully lift the tank assembly (78) to be able to work on the deck (79).
8. Remove the acoustic insulation assembly (A).
9. Remove the press-fitted cover (B) from the vacuum motor (C).
10. Partially unscrew the screws (D) by lowering the plates (E).
11. Extract the carbon brushes (F).
NOTE
When reassembling, insert the carbon brushes with the retainers (G) facing upwards.
12. Check the carbon brushes for wear; the carbon brushes are worn when there is not sufficient contact with the motor
armature, because of the carbon brush wear, the contact surface deterioration, the thrust spring breakage, etc. The
carbon brush (F) minimum length is 22 mm: when this length is reached, the carbon brushes have to be replaced.
13. If necessary, replace the carbon brushes. Replace all carbon brushes as an assembly.
14. Reassemble by carrying out the disassembly operations in the reverse order.
909 5484 000(1)2004-03
Figure 3
SERVICE MANUAL
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