Service Manual

Armature
Continuity Between Segments: Refer to Figure
10-4. Check for continuity between the segments of
the commutator.
If there is no continuity, replace the
armature.
Armature Coil Core and Commutator Continu-
ity: Refer to Figure 10-6. Check for no continuity be-
tween the commutator and armature’s shaft. If con-
tinuity exists, replace the armature.
commutator
ES1872
COMMUTATOR
FIGURE 106. MEASURING ARMATURE SHAFT
AND COMMUTATOR CONTINUITY
flGURE
10-4. MEASURING SEGMENT
CONTINUITY
Armature Coil Core and Commutator Continu-
ity: Refer to Figure 10-5. Check for no continuity be-
tween the commutator and the armature coil core.
If
continuity exists, replace the armature.
Armature Shaft and Bushing Clearance: Refer to
Figure
10-3, 10-7, and 10-8. Measure the bushing
inside diameter in the starter drive housing and end
frame. Measure the armature shaft outside diame-
ter on the pinion side and commutator side.
If the
clearance is not as specified in
Dimensions and
Clearances, replace the bushing.
COMMUTATOR
ES1873
FIGURE 10-5. MEASURING ARMATURE COIL
CORE AND COMMUTATOR CONTINUITY
BUSHING
STARTER DRIVE
HOUSING ES-1876
FIGURE 10-7. MEASURING STARTER DRIVE
HOUSING INSIDE DIAMETER
10-3