- balloon key, key "at 27"
- pliers
- screwdriver
- hammer
- jack
- stand
- wheel chocks
Push the parking brake lever all the way down (the car is disinhibited).
Remove the rear wheel.
Internal diameter of the brake drum, mm:
- nominal 180
- maximum allowable 181.5
Be sure to replace the drum when its inner diameter has reached the limit.
Attention! A defective brake drum reduces the life of the brake pads, resulting in inefficient and uneven braking.
1. Clean the brake drum and wheel hub guard from dirt.
2. Turning the drum, carefully knock off the protective cap of the hub and...
3....take it out of the drum.
4. Unbend the cotter pin and remove it from the hole in the hub axle.
5. Loosen the hub nut.
6. Remove the thrust washer.
7. Take out the front (outer) hub bearing. To do this, slightly move the drum towards you, and then move it into place.
8. If it is difficult to remove the drum, bring the shoes together by turning the adjusting nut of the expander bar, and knock the drum down with a rubber mallet.
9. Remove the brake drum.
10. Inspect the drum carefully. Be sure to replace the drum if it is chipped or cracked.
11. Inspect the working surface of the drum. If it has deep risks, chips or ovality is noticeable, the drum must be replaced.
12. The drum can be bored and ground, but its inner diameter must not exceed 181 mm.
13. Replace wheel studs with a loose fit in the drum or with damaged threads.
14. When replacing the drum, press the studs out of it by screwing the nuts flush onto them so as not to damage the threads. Also remove the oil seal, rear bearing and bearing inner races (see subsection 5.2.3.).
15. Press the studs into the new drum with the cut part of the head towards the center. Press in the outer races of the bearings and install the rear bearing with the oil seal (see subsection 5.2.3.).
16. If a shoulder has formed on the working surface of the drum as a result of wear, remove it with a file.
17. Bring the shoes together by screwing the adjusting nut onto half of the threaded part of the expansion bar.
18. Lubricate the pin with Litol-24 grease, install the brake drum and adjust the clearance in the wheel hub bearings (see subsection 5.2.4.).
19. Adjust clearances between pads and 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.).