I
Brush
holder
1
I
I
spring
I
Point Operations
[Point I]
Inspection:
lnspect for continuity between the field coil brush and
C
terminal.
Standard: Continuity exists.
Inspection:
lnspect the insulation between the field coil brush and the field.
Standard: 0.1
MR
or more
[Point 21
Disassembly:
Lift up the brush spring on the plus side with long-nose pliers.
Take care not to damage the brush or the commutator.
[Point 31
Inspection:
lnspect the brush.
1.
lnspect for roughness of the contact surface and the length of
the brush.
Measure the brush length in the center section (concave part).
Standard: 20.5 mm (0.807 in.)
Limit: 13.0 mm (0.512 in.)
2.
When correcting the contact surface and replacing the brush,
wrap sand paper around the commutator to correct the contact
surface.