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8.5. Replacement of front brake shoes

Prevention

Surely you make replacement of all blocks on one axis of the car even if the limit of wear was reached by one block. If blocks are repeatedly established, before removal they need to be marked.

During the work of brake shoes brake dust which contains asbestos, unhealthy therefore when cleaning brake shoes do not use compressed air is formed and do not inhale dust.

PERFORMANCE ORDER
1. Lift a forward part of the car and record on supports. Remove forward wheels.
2. Disconnect the electric socket from the sensor of wear of brake shoes.
3. From the outer side of a support remove the fixing spring.
4. Remove dustproof caps from the internal ends of the directing bolts.
5. Unscrew the directing support bolts.
6. Lift a support with an internal block.
7. Using a soft wire, tie up it to a forward rack.
8. Remove an internal block from the support piston.
9. Remove an external block from the holder of a support.
10. Purify dust and dirt from a support, and a rust from edge of a brake disk.
11. Measure thickness of brake shoes.
12. If blocks are suitable for further operation, clear them, using a wire brush or rags.
13. Before installation of blocks check that the directing bolts easily move in a support.
14. If new brake shoes are established, press the piston into a support a wooden core or the handle of the hammer. At the same time you watch that the piston did not warp also the surfaces of the piston and a boot were not damaged. At a piston vdviganiye brake fluid is forced out from the brake cylinder in a broad tank. Therefore constantly watch liquid level in a tank, and if necessary, pump out its small amount from a tank.
15. Check that dredging on the piston of a support is established, as shown in the drawing. If necessary turn the piston in the correct situation.
16. Establish an internal block on a support. At the same time the spring bracket has to be established in dredging of the piston.
17. Establish an external brake shoe.
18. Establish a support with an internal block on the holder of a support.
19. Screw in the directing bolts of a support and tighten them the required moment.
20. Establish dustproof caps on the directing support bolts.
21. Establish the fixing spring on a support. At the same time the ends of a spring have to settle down in a support opening.
22. Connect the sensor of wear of brake shoes.
23. Several times press a brake pedal that brake shoes nestled on a brake disk. Check the level of brake fluid in a tank.
24. Repeat above-mentioned actions on the second wheel.
25. Establish wheels and lower the car.
26. Check the level of brake fluid.