Inspection

1. Inspect the gear surface and bearing surface for wear and damage, then measure the mainshaft at points A, B, and C.
- If any part of the mainshaft is less than the service limit, replace it with a new one.





2. Inspect for runout.

Standard: 0.02 mm (0.0008 in.) maw.
Service Limit: 0.05 mm (0.002 in.)

NOTE: Support the mainshaft at both ends as shown.

- If the runout is more than the service limit, replace the mainshaft with a new one.