CHARGING & STARTING SYSTEM
90-884294 OCTOBER 2001 Page 2B-31
TESTING
Armature Test for Shorts
Check armature for short circuits by placing on growler and holding hack saw blade over
armature core while armature is rotated. If saw blade vibrates, armature is shorted. Re-
check after cleaning between commutator bars. If saw blade still vibrates, replace arma-
ture.
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Armature Test for Ground
1. Set ohmmeter to (R x 1 scale). Place one lead of ohmmeter on armature core or shaft
and other lead on commutator.
2. If meter indicates continuity, armature is grounded and must be replaced.
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