Hombre XS Space Cab L4-2.2L CPC (1997)
6. Inspect the armature for short circuits using the following procedure:
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Rotate the armature in a "growler."
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Use a steel strip (such as a hacksaw blade) held on the armature, parallel to the shaft.
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If a short circuit is detected, the steel strip will vibrate over the area.
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Consult the "growler" manufacturer's instructions for more information.
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Short circuits between the commutator bars can be produced by brush (carbon) dust or copper dust.
7. Inspect the armature for opens as follows:
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Look for loose connections where the conductors join the commutator bars.
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Poor connections cause arcing.
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Arcing causes burning of the commutator.
8. Inspect the armature for grounds with a self-powered test lamp (continuity tester). Use J21008-A.
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Place one test probe on the commutator.
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Place the other test probe on the armature core or shaft.
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If the test lamp lights, the armature is grounded.
9. Inspect the brushes for wear.
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If the brushes are worn to half the size of a new brush, install new brushes.
10. Inspect the holders for dirt or damage. Make sure that the brushes move freely and do not bind in the holders.
11. Inspect the brush springs for distortion or discoloring (indicating they have lost their tension).
12. Repair or replace as necessary.
13. Inspect the field coils.
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Look for burned or damaged insulation.
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Look for damaged connections.
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Look for loose poles.
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If the condition of the coils is doubtful, replace the field and frame assembly.
