Side Brush Motor Brushes (Or Carbon Brushes) Check And Replacement - Nilfisk-Advance SR 1100 P/B Service Manual

GB
SERVICE MANUAL
SWEEPING SYSTEM
SIDE BRUSH MOTOR BRUSHES (OR CARBON BRUSHES) CHECK AND
REPLACEMENT
Remark: This procedure refers to the right brush: the procedure for the left brush is the same.
1. Turn the ignition key (10) to OFF position and activate the parking brake (17).
2. Open the hood (21) and fix it with the support rod (36).
3. Disconnect the battery electrical connector (38).
4. Remove the relevant side brush.
5. Disconnect the spring (A) from the motor bracket (B).
6. Remove the fixing nut of the motor assembly rotation pin (C).
7. Move a bit the motor assembly (D) from its position.
8. Remove dust and dirt from the motor exterior part; then disengage and remove the covers (E).
9. Remove the retaining spring (F) and pull out the brushes (G).
10. Check if the two brushes are worn out. The brushes are worn when there is not sufficient contact with the
motor armature, because of their use, of the contact surface which is not integral or because the thrust spring
is broken, etc.
11. If necessary, remove the brushes to replace them, by disengaging the lead-in wires (H).
It is advisable to replace all the brushes (G) at the same time.
12. Install in the reverse order of removal.
Figure 23
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Figure 24
S30N1100(1)2002-01
S300099