Table of contents: Replacing brake pads ↓ Removal ↓ Disassembly ↓ Checking the caliper ↓ Checking the brake disc ↓ Assembly ↓ Installation ↓
1. Cable guide
2. Support
3. Brake shoe manual lever
4. Guide fingers
5. Protective covers for guide pins
6. Shoe guide
7. Holder
8. Inner lining
9. Inner brake shoe
10. Brake pad holder
11. Outer brake shoe
12. External gasket
13. Expansion pin
14. Sealing ring
15. Piston rod
16. Key plate
17. Retaining ring
18. Spring seat
19. Spring
20. Spring cup
21. St support ring
22. Piston sealing ring
23. Retaining ring
24. Remote laying
25. Spring washer
26. Remote laying
27. Bearing
28. Regulator
29. Washer
30. Piston
31. Piston protective cuff
Replacing brake pads
When replacing brake pads, follow all precautions listed in the section "Front disc brake mechanism".
1. Remove the master cylinder reservoir cap.
2. Remove the parking brake cable retaining plate.
3. Remove the cable guide from the caliper.
4. Disconnect the parking brake cable.
5. Remove the brake hose retaining plate.
6. Unscrew the lower guide pin.
7. Fold the caliper forward, then remove the pad holders, inner and outer pads and the pads themselves.
- Nominal thickness of brake linings - 10 mm
- Maximum permissible - 1.5 mm
8. When installing new pads, press the piston into the cylinder by rotating it clockwise.
Monitor the fluid level in the reservoir, because when the piston is pressed into the cylinder, the fluid will return to the reservoir.
Removal
1. Remove the parking brake cable retaining plate.
2. Unscrew the brake shoe guide mounting bolts and the brake hose connecting bolt.
If the caliper is not being replaced or disassembled, there is no need to disconnect the brake hose. Hang the caliper on a wire so that the hose is not stretched.
Disassembly
1. Remove the piston from the cylinder by turning it counterclockwise using needle-nose pliers.
2. Remove the retaining ring from the piston and remove the adjusting nut.
3. Disassemble the cylinder:
- Remove the first snap ring and take out the spring cup, spring and seat.
- Remove the second snap ring and take out the key plate, piston rod and spacer pin.
- Remove the piston seal ring from the cylinder groove. Be careful not to scratch the cylinder walls.
4. Remove the return spring; manual brake pad lever and cable guide.
Checking the caliper
The inspection procedure is similar to that of the front wheel disc brakes.
Checking the brake disc
The inspection procedure is similar to that for front wheel disc brakes.
- Maximum runout - 0.07 mm
Maximum permissible disc thickness:
- CL7HB - 6.0 mm
- CL9HC - 8.0mm
Assembly
1. Insert the cam, orienting it as shown in the figure.
2. Generously lubricate the expansion pin and piston rod with rubber grease to facilitate their installation.
3. Align the protrusion on the key plate with the recess in the cylinder.
4. Install the retaining ring.
5. Insert the seeder, spring and spring cup. Then install the second retaining ring by compressing the spring.
6. Install the regulator as shown in the figure.
7. Install the washer, adjuster, bearing, spacers and snap ring.
8. Insert the piston seal ring into the cylinder groove.
9. After placing the protective cuff on the piston, insert it into the groove of the cylinder and install the piston by turning it clockwise with needle-nose pliers or another suitable tool.
10. Install the manual brake shoe release lever, return spring and cable guide.
Installation
Installation is performed in the reverse order of removal. If the caliper was disassembled, remove air from the hydraulic drive (see the relevant section of this chapter).