CHARGING AND STARTING SYSTEM
90-828631R3 MARCH 1999 Page 2B-29
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 armature.
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, as shown.
2. If meter indicates continuity, armature is grounded and must be replaced.
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