- cylinder key, key "on 27"
- pliers
- screwdriver
- hammer
- jack
- stand
- wheel chocks
Lower the parking brake lever all the way down (the car is released).
Remove the rear wheel.
Inner diameter of brake drum, mm:
- nominal 180
- maximum permissible 181.5
Be sure to replace the drum if its internal diameter has reached the maximum permissible size.
(The text is published on the portal VazBook)
Attention! A defective brake drum reduces the durability of the brake shoes, leads to ineffective and uneven braking.
1. Clean any dirt from the brake drum and wheel hub cap.
2. While turning the drum, carefully knock off the protective cap of the hub and...
3....remove it from the drum.
4. Bend the cotter pin and remove it from the hole in the hub axle.
5. Loosen the hub nut.
6. Remove the thrust washer.
7. Remove the front (outer) hub bearing by gently pushing the drum toward you and then sliding it into place.
8. If the drum is difficult to remove, bring the shoes together by turning the adjusting nut of the expansion bar and knock the drum down with a rubber hammer.
9. Remove the brake drum.
10. Carefully inspect the drum. Be sure to replace the drum if you find chips or cracks on it.
11. Inspect the working surface of the drum. If there are deep scratches, chips or ovality is visible, the drum must be replaced.
12. The drum can be bored and ground, but its internal diameter must not exceed 181 mm.
13. Replace wheel rim mounting studs that have a loose fit in the drum or have damaged threads.
14. When replacing the drum, press out the studs from it, screwing the nuts onto them flush so as not to damage the threads. Also remove the oil seal, rear bearing and inner bearing rings (see subsection 5.2.3.).
15. Press the studs into the new drum with the cut off part of the head towards the center. Press in the outer bearing races and install the rear bearing with the seal (see subsection 5.2.3.).
16. If a ridge has formed on the working surface of the drum as a result of wear, remove it with a file.
17. Bring the pads together by screwing the adjusting nut onto half of the threaded part of the expansion bar.
18. Lubricate the journal with Litol-24 grease, install the brake drum and adjust the clearance in the wheel hub bearings (see subsection 5.2.4.).
19. Adjust the clearances between the brake shoes and the brake drum (see subsection 7.4.4.). Install the wheel, check the operation of the parking brake and adjust it if necessary (see subsection 7.4.3.).