Diesel Data: Automotive Repair

9. Mainshaft Inspection

Mainshaft Inspection





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





2. Inspect the runout by supporting both ends of the mainshaft. Rotate the mainshaft two complete revolutions when measuring the runout. If the runout is more than the service limit, replace the mainshaft.