Checking The Brush Holder And Brush - SELVA MARINE Wahoo 15 Service Manual

3. Measure the commutator undercut a.
Replace the armature if below specifica-
tion.
Commutator standard undercut a:
0.8 mm (0.03 in)
Wear limit: 0.2 mm (0.01 in)
4. Check the armature
Replace the armature if out of specifica-
tion.
b
c
Armature continuity
Checking points
Commutator segments b
Segment – Armature core c
Segment – Armature shaft d
Checking the brush holder and
brush
1. Check the brush holder assembly for
continuity. Replace if out of specification.
6AG3J11
for continuity.
d
S6AG8460
Continuity
Yes
No
No
8
Starter motor (electric starter model)
2
1
3
3 1
Brush holder assembly continuity
Checking points
Brush 1 – Terminal 3
Brush 1 – Brush 2
Brush 2 – Terminal 3
2. Measure the length of each brush.
Replace if below specification.
Brush standard length:
12.5 mm (0.49 in)
Wear limit a: 9.0 mm (0.35 in)
2
S6AG8470
Continuity
Yes
No
8-16
1
2
3
4
5
6
7
8
9