Nilfisk-ALTO FLOORTEC R 870 Service Manual page 195

Service Manual – Floortec R 870
Side Broom Motor Carbon Brush Check/Replacement
Disassembly
1 Remove the side broom motor (see the procedure in the previous paragraph)
2 Take the motor (A) to the workbench and, if necessary, mark the position (B) of the cap (C) as to the
motor body (for proper reassembly)
3 Remove the screws (D)
4 Carefully remove the cap (C) by disengaging the carbon brushes inside the motor armature
5 Inside the cap, disconnect the connections (E) and remove the carbon brushes with wiring harness (F).
6 Check the carbon brushes (F) for wear. The carbon brushes are worn when:
• The contact with the motor armature is insufficient
• The contact surface is not integral
• The stroke is less than 0 12 in (3 mm)
• The spring is broken
In this cases, replace all motor carbon brushes.
Assembly
7 Assemble the components in the reverse order of disassembly
C
A
D
B
E
Side Broom System
E
F
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