65637bd9

11.4.3. Blocks of back drum brakes

Replacement

PERFORMANCE ORDER
1. Remove drums.
2. Clear a board of a brake and drums.
3. Pay attention to an arrangement of back and forward blocks, springs and the regulator of a gap between blocks and drums.
4. Remove clamping springs of blocks for what press a cap and turn on 90 °.
5. Remove springs, caps and get pins from the brake board back.
6. Carefully give on yourself and remove blocks assembled with the regulator and a cable of the emergency brake.
7. Disconnect the top and lower springs of blocks.
8. If necessary tie with a wire the cylinder that there were no pistons if on the cylinder there are traces of dribbles, then replace or repair the cylinder.
9. Disconnect the regulator and a spring from a forward block.
10. Disconnect the regulator and a spring from a back block.
11. Remove the regulator lever from a forward block.
12. Disconnect a cable of the emergency brake from the lever.
13. Get a lock washer.
14. Remove an axis of the lever and remove the lever from a back block.
15. Attach a lock washer the lever of the emergency brake to a new block.

Prevention

Levers of the drive of the emergency brake for the left and right wheels differ.


16. Slightly grease with special lubricant of a surface of contact of a board of a brake with blocks.
17. Establish a block on a board and attach a cable of the emergency brake to the lever, previously having convinced of correctness of orientation of a spring of the lever. Fix a block, having established a pin, a spring and having turned a cap.
18. Make sure that the top end face of a block came into a groove on the speaker from the cylinder a piston end face.
19. Attach a regulator spring to the top part of a back block, having hooked on a spring from that party of a block which is turned to a board.
20. Dress the lower returnable spring on a back block, having hooked on a spring from that party of a block which is turned outside.
21. Establish a forward block and hook on a regulator spring for a pin from the block back. Dress the lower returnable spring on a forward block.
22. Truncate a strut of blocks, rotating a gear nut.
23. Grease the surfaces of contact of a strut, levers of the emergency brake and the regulator with special lubricant.
24. Install the regulator, having rested against the corresponding grooves in blocks.
25. Check correctness of installation of the regulator.
26. Establish a forward block in the place, fix by a pin, a spring and having turned a cap. The top part of a block has to come into a cylinder groove, and lower – into an emphasis on a brake board.
27. Install the regulator lever on a back block so that the lever entered gearing with an axis and a gear nut.
28. Dress the top coupling spring. Hook on the extended part for an opening in the regulator lever, and short – for a pin on a forward block.
29. Check correctness of installation of all details.
30. Rotating a gear nut, reduce blocks so that it was possible to dress a drum.
31. Repeat the described actions with a brake of other wheel and dress drums.
32. Before departure check work of brakes.