Armature Inspection. Chevrolet Joy 2008

For 1990-2009 cars

### Inspection Procedure

1. Inspect the insulation between commutator and armature coil using the voltmeter.
2. Replace the armature assembly if necessary.
3. Ground test the armature for armature coil.

Important: If test equipment is available, check the armature for short circuit by placing it on a growler, and holding back a saw blade over the armature core while the armature is rotated. If the saw blade vibrates, replace the armature.

4. Short circuit test the armature for armature coil.
5. Check the continuity between the commutator bars using multimeter.
6. Replace the armature assembly if necessary.
7. Open circuit test the armature for armature coil.
8. Inspect the brushes, the pop-out springs, and the brush holder for wear (wear limit [a]) and damage. Replace the brushes, if necessary.

Specification
The Brushes Wear Standard is 11.3-11.5 mm (0.445-0.453 in).

Specification
Brushes Wear Limit is 7.0-7.25 mm (0.275-0.285 in).