Yamaha F100B - Checking the Brushes

60C5D11
8-18
1
2
3
4
5
6
7
8
9
3. Measure the commutator undercut
a
.
Replace the armature if out of specifica-
tion.
4. Check the armature for continuity.
Replace if out of specifications.
Checking the brushes
1. Measure the brush length. Replace the
brush assembly if out of specification.
2. Check the brush holder assembly for
continuity. Replace if out of specifica-
tions.
Commutator undercut limit
a
:
0.2 mm (0.01 in)
Armature continuity
Commutator segments
b
Continuity
Segment –
Armature core
c
No continuity
Segment –
Armature shaft
d
No continuity
Brush length limit
a
:
9.5 mm (0.37 in)
Brush continuity
Brush
1
– Brush
2
No continuity
S60C8340
Starter motor