Loosen locknut 5 (see fig. 6-4) and adjusting nut 6, remove the return spring 9 (pic. 6-26), then completely loosen the locknut and nut.
Pic. 6-26. Parking brake drive parts:
1 - parking brake drive lever;
2 - button;
3 - thrust spring;
4 - latch rod;
5 - cover;
6 - front cable;
7 - rear cable guide;
8 - spacer sleeve;
9 - withdrawal spring;
10 - spacer bar;
11 - lever for manual drive of the pads;
12 - rear cable.
Remove the front ends of the rear cable from the body floor brackets, and the cable sheath from the rear axle beam brackets, and remove the rear cable 12.
Remove the arm assembly and front cable.
Remove the cotter pin and thrust washer, disconnect the front cable from the parking brake lever.
Install the parking brake in the reverse order of removal, followed by adjustment (see «Parking brake adjustment»). When installing, lubricate with grease Litol-24 or LSTs-15 the rear cable guide, the parking brake lever axle and the tip of the front cable.
Check and repair. Carefully check the condition of the parking brake parts.
If a break or rubbing of the wires is detected, replace the cable with a new one.
Make sure that the sector teeth and handle latches are not damaged; replace worn parts.
Check the condition of the spring. It should ensure the return of the lever to the non-working position.
Check the condition of the rear cable sheath and the fastening of the lugs on the sheath, and also make sure that the cable moves freely inside the sheath. If the sheath is damaged and the lugs are loose, replace the cable.