60H5E11
7
Brush length limit A:
4.8 mm (0.19 in)
Commutator diameter limit C:
21 mm (0.83 in)
Armature coil continuity:
a
b
Commutator segments E Continuity
Segment E - Laminations F No continuity
Segment E - Shaft G No continuity
Checking the PTT motor
1. Check the blush length A. Replace the
blush if it is shorter than the specified limit.
60h70490
2. Check the brush and circuit breaker for con-
tinuity. Replace them if there is no conti-
nuity.
60h70500
Do not touch the bimetal
BB
BB
B, otherwise the
operation of the circuit breaker may be af-
fected.
3. Check the commutator diameter. Replace
it if the diameter is smaller than the limit.
60h70510
4. Check the armature coil for continuity. Re-
place it if the continuity is out of specifica-
tion.
PTT motor and Reservoir
7-24
5. Check the base for cracks or damage.
Check that the bearing and oil seal have
no flaw. Replace if necessary.
60h70540
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