Service manual

ELEC
STARTER MOTOR (T135SE)
8-20
2. Measure:
9
commutator diameter
a
Out of specification
→
Replace the starter
motor.
3. Measure:
9
mica undercut
a
Out of specification
→
Scrape the mica to
the proper measurement with a hacksaw
blade that has been grounded to fit the
commutator.
NOTE:
The mica of the commutator must be undercut
to ensure proper operation of the commutator.
4. Measure:
9
armature assembly resistances (commuta-
tor and insulation)
Out of specification
→
Replace the starter
motor.
✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭✭
a. Measure the armature assembly resis-
tances with the pocket tester.
b. If any resistance is out of specification,
replace the starter motor.
✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬✬
Commutator wear limit
16.6 mm (0.65 in)
Mica undercut
1.35 mm (0.05 in)
Pocket tester
90890-03112
Armature coil
Commutator resistance
11
0.0315–0.0385
Ω
at 20° C (68° F)
Insulation resistance
22
Above 1 M
Ω
at 20° C (68° F)
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