STARTING SYSTEM
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 4A-13
Testing
ARMATURE TESTS
Test for Shorts
1. Check armature for shorts by placing on growler and holding hack saw blade over
armature core while rotating armature. If saw blade vibrates, armature is shorted. After
cleaning between commutator bars, recheck. If saw blade still vibrates, replace
armature.
01440
a
b
c
a-Hacksaw Blade
b-Armature Core
c-Growler
Test for Ground
1. With continuity meter, place one lead on armature core or shaft and other lead on com-
mutator.
2. If meter hand moves, armature is grounded and must be replaced.
01441
a
c
b
d
c
a-Commutator
b-Armature Core
c-Shaft
d-Growler
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