Starter Component Inspection: Commutator
- Using "V" blocks and dial indicator, check commutator runout (out-of-round). Ensure runout is not more than .002"(.05 mm). Turn commutator/armature on lathe until runout (out-of-round) is within specification.
- Check diameter commutator. Commutator should not be less than specification. See MINIMUM COMMUTATOR SPECIFICATIONS . If commutator is cut down more than .008" (.20 mm), undercut insulating mica to depth of .015-.031" (.38 -.78 mm).
MINIMUM COMMUTATOR SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Metro (A/T) | 1.06 (27) | |
| Prizm | 1.14 (29) | |
| Storm | ||
| A/T | 1.14 (29) | |
| M/T | 1.06 (27) | |
| Tracker | 1.13 (28.8) | |