6D93G11
7-28
1
2
3
4
5
6
7
8
9
3. Measure the commutator undercut
a
.
Replace the armature if below specifica-
tion.
4. Check the armature for continuity.
Replace if out of specifications.
5. Check the circuit breaker for continuity.
Replace if there is no continuity.
6. Measure the brush length. Replace if
below specification.
7. Check the base for cracks or damage.
Replace if necessary.
8. Check the bushing
1
and oil seal for
damage or wear. Replace if necessary.
Commutator diameter wear limit:
21.0 mm (0.83 in)
Commutator undercut wear limit
a
:
1.0 mm (0.04 in)
Armature continuity
Commutator segments
b
Continuity
Segment – Armature core
c
No continuity
Segment – Armature shaft
d
No continuity
Brush length wear limit
e
:
3.5 mm (0.14 in)
Power trim and tilt motor
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