Section 05
ELECTRICAL
Sub-Section 06
(ELECTRIC STARTER)
05-06-11
CLEANING
Discard all O-rings and gasket.
Clean brushes and holders with a clean cloth
soaked in solvent. Brushes must be dried thor-
oughly with a clean cloth.
Blow brush holders clean using compressed air.
Remove dirt, oil or grease from commutator using
a clean cloth soaked in suitable solvent. Dry well
using a clean, dry cloth.
Clean engine ring gear teeth and drive unit
(clutch).
NOTE:
Bushings must not be cleaned with
grease dissolving agents.
Immerse all metal components in cleaning solu-
tion. Dry using a clean, dry cloth.
PARTS INSPECTION
Armature
NOTE:
An ohmmeter may be used for the
following testing procedures, except for the
one concerning shorted windings in armature.
Check commutator for roughness, burnt or
scored surface. If necessary, turn commutator on
a lathe, enough to resurface only.
Check commutator for mica depth. If depth is less
than 0.20 mm (.008 in), undercut mica. Be sure
that no burrs are left and no copper dust remains
between segments after undercutting operation
is completed.
1. Commutator undercut 0.20 mm (.008 in)
Check commutator out of round condition with V-
shaped blocks and an indicator. If commutator out
of round is more than 0.40 mm (.016 in), commu-
tator should be turned on a lathe.
Check commutator outer diameter. If less than 27
mm (1.063 in), replace.
Brush Holder
Check brush holder for insulation using an ohm-
meter. Place one test probe on insulated brush
holder and the other test probe on brush holder
plate. If continuity is found, brush holder has to be
repaired or replaced.
Brush Length
Measure brush length. If less than 8.5 mm (.335
in), replace them.
NOTE:
New brush length is 12 mm (.472 in).
-
CAUTION
Yoke ass’y and drive unit assembly must not
be immersed in cleaning solvent.
◆
WARNING
Always wear safety glasses when using
compressed air.
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F01H0RA
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A03E06A
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