2. Check the tapered bearing race shafts for signs of corrosion and abrasion by painting them purple. If necessary, replace the bearing as described below. It is necessary to pay attention to the fact that the bearings and races are adjusted to each other. Therefore, it is prohibited to replace the races with bearings.
3. Using a puller, remove the inner tracks with baskets from both sides of the differential mechanism (photo 6.10).
4. Wipe the bearing surfaces on the differential mechanism clean, then heat the new inner races and bearings in boiling water. Quickly transfer them to the differential mechanism journal using a metal tube with a diameter corresponding to the inner race.
5. Using a metal pipe, knock out the outer races from the clutch housing and gearbox housing after removing the oil seals. Knock them out from the outside of the gearbox, and then remove the spacers. Set the spacers aside with the gearbox housing. The washer is 1 mm thick and should be installed in the gearbox housing when determining the bearing preload and when installing the bearing during final assembly.
6. Clean the housing nests. If necessary, you can remove the seal bushing from the clutch housing by lifting it with a suitable screwdriver. It is necessary to pay attention not to damage the housing. After removing the old seal bushing, install a new one by pressing it with a suitable tubular punch.
7. Place a 1mm thick thrust washer into the gearbox housing and drive in the new outer bearing race.
8. In a similar manner, it is necessary to drive a new outer track into the clutch housing, but without the spacer washer.
9. Install the differential mechanism into the gearbox housing, then clean the mating surfaces and install the clutch housing (if there was, then together with a new gasket). Insert the bolts and tighten them crosswise to the appropriate torque.
10. Attach the clock gauge to the gearbox and, without rotating the differential mechanism, measure the longitudinal clearance by moving the differential mechanism toward the middle and outward. Write this measurement as A.
11. The bearing pre-tension should be 0.30 mm. To obtain the thickness of the adjusting washer that needs to be secured in the clutch housing, add 0.30 mm to the measured clearance A. The washer size will be A + 0.30 mm.
Example:
Size A = 1.50 mm. Washer thickness = 1.50 + 0.30 = 1 80
12. Remove the clutch housing, knock out the outer bearing race, then install the appropriate adjusting washer and drive the outer race back in
13. Dry and blow out the differential mechanism cone bearings thoroughly before installing them in the gear housing and install new seals as described in point 4.
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