Pre-Inspection
Before disassembling final drive, perform the following inspection.
1. Total preload
a. Turn drive pinion in both directions several times to set bearing rollers.
b. Check total preload with Tool number ST3127SOOO (J25765-A).
Total preload: 1.2 - 2.3 Nm (10 - 20 inch lbs.)
2. Ring gear-to-drive pinion backlash Check backlash of ring gear with a dial indicator at several points.
Ring gear-to-drive pinion backlash: 0.13 - 0.18 mm (0.0051 - 0.0071 inch)
3. Ring gear runout
Check runout of ring gear with a dial indicator.
Runout limit: 0.05 mm (0.0020 inch)
4. Check tooth contact.