SEQUENCE OF WORKS
1. Raise the car horizontally and secure it on supports. Unscrew the bolts and remove the rear wheel.
2. Loosen the adjusting nut on the parking brake drive lever. First, squeeze the rubber protective cap and lift it up the lever.
3. Disconnect the automatic brake shoe clearance adjuster.
4. Carefully lift the cap off the wheel hub.
Fig. 13.21. Rear wheel hubs: 1 – lower shock absorber strut mount; 2 – brake drum; 3 – inner bearing ring; 4 – outer bearing ring; 5 – nut
5. Loosen the wheel hub mounting nut, holding the wrench in a horizontal position, and remove the hub together with the brake drum (Fig. 13.21).
6. Using a large screwdriver, remove the seal from the inside of the hub (use a new seal when installing).
7. Using a hammer and a suitable punch, remove the rotating outer bearing race from the wheel hub.
8. Using two screwdrivers, remove the inner bearing from the hub axle.
9. Clean the wheel hub and carefully install the new inner bearing rings until they rest against the hub flange. Do not tilt the bearing rings when installing.
10. Fill the new bearings with lithium grease (for example, LM-320). Clean the seal, fill it halfway with new grease.
11. Carefully push the new seal with a rod until it stops in the hub. The working edge of the seal should be on the bearing side. At the same time, lubricate the sealing edge with lithium grease.
12. Install the inner bearing into the bearing ring and place it on the hub axle together with the hub. If necessary, tap the hub into place using a wooden or rubber pad and lightly tap it with a hammer.
13. Install the outer bearing onto the hub axle and secure it in the inner bearing ring.
14. Tighten the new hub nut to 250–290 N·m. The wheel hub bearings are not adjustable, they are made with such close tolerances that tightening the hub nut automatically sets the required wheel hub bearing clearance.
15. Install the cap onto the wheel hub.
16. Press (but not to the floor of the body) the brake pedal until preliminary pressure appears in the brake system.
17. Adjust the parking brake.