Brake pads 1. Brake hose; 2. Connecting bolt; 3. Copper washer; 4. Cap; 5. Bleeding fitting; 6. Guide pin bolt; 7. Cylinder body; 8. Piston seal; 9. Piston; 10. Piston boot; 11. Retaining ring; 12. Guide pin boot; 13. Bushing; 14. Caliper bracket; 15. Inner gasket cover; 16. Internal gasket; 17. Inner block; 18. Pad wear sensor (only on the right side from the inside); 19. Pad holder; 20. Outer block; 21. External gasket.
Removal and installation
Removal
Attention:
- To reduce the health hazard posed by dust particles or other materials, clean the caliper and brake pads with a vacuum cleaner. Do not use compressed air.
- When removing the brake pads or cylinder body, do not press the brake pedal, otherwise the piston will pop out.
- Do not spill brake fluid onto the brake disc.
1. Remove the wheels.
2. Remove the bolt from the lower guide pin.
3. Hang the cylinder body on the wire so as not to stretch the brake hose. Then remove the pads from the caliper bracket.
Attention:
- Do not deform the pad holder when removing it from the caliper bracket.
- Do not damage the piston boot.
- Do not drop brake pads, shims, or shim caps.
Installation
Attention:
- To reduce the health hazard posed by dust particles or other materials, clean the caliper and brake pads with a vacuum cleaner. Do not use compressed air.
- When removing the brake pads or cylinder body, do not press the brake pedal, otherwise the piston will pop out.
- Do not spill brake fluid onto the brake disc.
1. If the pad holders were removed, install them in the caliper bracket.
Attention:
- When installing the pad holder, insert it firmly so that it does not protrude beyond the caliper bracket.
- Do not deform the pad holders.
2. Apply copper-based brake lubricant to the contact surfaces between the brake pads, shims and shim caps and place them on the brake pads.
Attention. When replacing brake pads, always replace the shims and shim caps as a set.
3. Insert the cylinder body and brake pads into the caliper bracket.
Attention. Do not damage the piston boot.
- If you replace the pads with new ones, monitor the brake fluid level in the reservoir, since when the piston is pressed in, the brake fluid will return and raise the level in the master cylinder barrel.
Note. To make it easier to compress the piston, use a disc brake piston tool (special tool).
4. Screw the bolt into the lower guide pin and tighten to the required torque.
5. Press the brake pedal several times and check whether the rear wheel brakes are sticking.
6. Install the wheels.
Check and adjustment
Check after removal
If the gaskets and gasket caps show signs of rust, replace them with new ones.
Adjustment after installation
Brake running-in procedure
Run-in the friction surfaces of new brakes in accordance with the procedure below in case of boring or replacing discs after replacing brake pads, and also if after a short mileage it begins to «Fail» pedal.
Attention:
- Watch the speed of the car, because... The brakes only function properly if the brake pads and discs are properly run-in.
- Carry out this procedure only on safe roads, without interfering with traffic. Be extremely careful.
1. Drive your car on a straight, level road.
2. Adjust the pressure on the brake pedal so that the time it takes to stop the car is 3-5 seconds.
3. Allow the brake system to cool by driving the vehicle without pressing the brake pedal.
4. Repeat pp. 1-3 until the break-in of the brake pads and discs is complete.