Model H190A

Before disassembling final drive, perform the following inspection.
1. Total preload.
a. Turn drive pinion in both directions several revolutions to seat bearing rollers correctly.
b. Check total preload with Tool number ST3127SOOO (J25765-A).
Total preload: 1.2 - 2.2 Nm (10 - 19 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: 0.08 mm (0.0031 inch)





4. Check tooth contact.
5. Side gear-to-pinion mate gear backlash.
- Measure clearance between side gear thrust washer and differential case with a feeler gauge
Clearance between side gear thrust washer and differential case: Less than 0.15 mm (0.0059 inch)