2. Check the tapered bearing race shafts for signs of corrosion and abrasions 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 the tracks are adjusted to each other. Therefore, it is forbidden to replace the tracks with bearings.
3. Using a puller, remove the inner tracks with baskets on both sides of the differential mechanism (photo 6.10).
4. Wipe clean the bearing surfaces on the differential mechanism, and then heat the new inner races and bearings in boiling water. With a quick movement, transfer them to the trunnion of the differential mechanism, using a metal tube with a diameter corresponding to the inner track.
5. Using a metal tube, knock out the outer tracks from the clutch housing and transmission housing after removing the oil seals. Knock them out from the outside of the gearbox, and then remove the spacers. Set spacers aside with gearbox housing. The washer is 1 mm thick and must be installed in the gearbox housing when determining the bearing prestress and when installing the bearing during final assembly.
6. Clean the slots in the housings. If necessary, the seal bushing can be removed from the clutch housing by prying it up with a suitable screwdriver. Care must be taken not to damage the casing. After removing the old seal bushing, install a new one by pushing it in with a suitable tubular punch.
7. Place a 1 mm thick thrust washer in the gearbox housing and drive in a new outer bearing race.
8. Drive the new outer track into the clutch housing in the same way, but without the spacer.
9. Install the differential mechanism in the gearbox housing, and then clean the adjacent surfaces and install the clutch housing (if it was, then together with a new gasket). Insert the bolts and press them crosswise with the appropriate torque.
10. Fix the clock gauge on the gearbox and, without rotating the differential mechanism, measure the longitudinal clearance by moving the differential mechanism towards the middle and out. Let's write this as A.
11. Bearing preload should be 0 30 mm. To obtain the thickness of the adjusting washer, which must be fixed in the clutch housing, it is necessary to add a value of 0.30 mm to the measured gap A. The washer size will be A + 0.30 mm.
Example:
Dimension A = 1.50 mm. Washer thickness = 1.50 + 0.30 = 180
12. Remove the clutch housing, knock out the outer race of the bearing, and then install the appropriate shim and drive the outer race back
13. Dry and blow thoroughly the tapered bearings of the differential mechanism before installing them in the gear case and install new seals as described in paragraph 4.
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