INSPECTION OF STARTER
Armature Coil
1. INSPECT THAT COMMUTATOR IS NOT GROUNDED
Using an ohmmeter, check that there is no continuity be–
tween the commutator and armature coil core.
If there is continuity, replace the armature.
2. INSPECT COMMUTATOR CIRCLE RUNOUT
(a) Place the commutator on V–blocks.
(b) Using a dial indicator, measure the circle runout.
Maximum circle runout: 0.05 mm (0.0020 in.)
If the circle runout is greater than maximum, correct it on
a lathe.
2. INSPECT COMMUTATOR FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between
the segments of the comrnutator.
If there is no continuity between any segment, replace the
armature.
Commutator
1. INSPECT COMMUTATOR FOR DIRTY AND BURNT
SURFACES
If the surface is dirty or burnt, correct it with sandpaper
(No.400) or on a lathe.
3. INSPECT COMMUTATOR DIAMETER
Using vernier calipers, measure the commutator diameter.
Standard diameter: 30 mm (1.18 in.)
Minimum diameter: 29 mm (11.14 in.)
If the diameter is less than minimum, replace the armature.
–STARTING SYSTEM Starter
ST–5
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