Installing the wheel drive shaft seal in the rear axle housing without bearing caps
11 - tapered roller bearing; 12 - differential box; 26 - spring retaining ring; 29 - oil seal; 049a - installation device; 54 - rear axle housing
Locking the main gear pinion nut
a = 8.0 mm
b = 4.0 mm
1. Remove the cardan shaft and drain the oil from the rear axle housing.
2. Remove the rear axle.
3. Determine the initial torque of the slow rotation of the gear. For this purpose, you can use a cord wound around the flange axis and a spring dynamometer.
4. Lock the flange with a rod, securing it with a lever inserted between the crosspiece bolts, and unscrew the drive gear crown nut with a special key.
5. Remove the flange from the drive gear splines using a puller.
6. Use a screwdriver to remove the oil seal from the rear axle housing.
7. Clean the gland seat on the flange. If the groove for the gland is heavily worn, replace the flange.
8. Apply a light coat of grease to the outer and sealing lips of the new oil seal and use a mandrel to press the oil seal into the crankcase.
9. Lubricate the splines of the drive gear and install the flange, screw on and gradually tighten the new nut so that the torque of rotation of the gear corresponds to the torque measured at the beginning of the replacement. Do not overtighten the nut, but the final tightening torque must be at least 18.0 kgf·m.
10. Secure the nut by pressing its flange into the gear slot.
11. Assemble the knots in reverse order.