Model H190A
For quiet and reliable final drive operation, the following five adjustments must be made correctly:
1. Side bearing preload.
2. Pinion gear height.
3. Pinion bearing preload.
4. Ring gear-to-pinion backlash.
5. Ring and pinion gear tooth contact pattern.
A selection of carrier side bearing preload shims is required for successful completion of this procedure.
1. Make sure all parts are clean and that the bearings are well lubricated with light oil or type DEXRON automatic transmission fluid.
2. Remove side bearing inner cones. To prevent damage to bearing, engage puller jaws in grooves with Tool numbers:
(A) ST33051001 (J22888-20)
(B) ST33061000 (J18107-2)
3. Reinstall all of the original side bearing adjusting shims on the carrier side, away from the ring gear.
4. Reinstall the carrier side bearing using Tools J25805-01 and J8107-2. Press on the bearings.
5. Install carrier and bearings into the final drive housing. Install side bearing caps. Torque the bolts and tap on the caps with a soft hammer to seat the bearings.
Side bearing cap bolt torque specification: 49 - 59 Nm (36 - 43 ft. lbs.)
6. After turning the carrier several times to seat the bearings, measure carrier turning force with spring gauge J8129.
Turning force specification: 34.3 - 39.2 N (7.7 - 8.8 lbs.) of pulling force at the ring gear bolt.
7. If necessary, correct the carrier bearing preload by adding to or subtracting from the total amount of shim thickness. Add shim thickness to increase turning force on the carrier. Subtract shim thickness to decrease turning force on the carrier.