Removing
1. Raise the front of the car and place on stands.
2. Remove the wheel.
3. To reduce fluid loss, tightly wrap the tank cap by laying a plastic film, or pinch the hoses.
4. Clean the hose ring and remove the bolt.
5. Remove two gaskets.
6. Remove pads.
7. Loosen the top pin of the caliper.
8. Remove the support.
9. If necessary, you can remove the caliper bracket.
Disassembly
1. Carefully clean the caliper.
2. Get fingers for heads of bolts which screw in fingers.
3. Remove the rubber finger covers.
4. Remove retaining ring and cylinder cover.
5. Remove the piston by blowing air from the pump into the fitting hole.
6. Remove the cylinder seal with a wooden stick.
7. Wash all parts in clean brake fluid or alcohol.
8. All seals and covers must be replaced.
9. Check the condition of the caliper, especially carefully inspect the piston and the inner surface of the cylinder, replace worn parts. The caliper or caliper bracket are not supplied separately as spare parts.
10. Minor defects on the cylinder are eliminated by polishing with fine sandpaper, while the piston with the same defects must be replaced. The piston must not be polished.
11. Check the condition of the threads on the caliper fingers, there should be no play in the fingers in the caliper.
12. Blow through the channels in the caliper.
13. Before assembly, check the cleanliness of all parts.
14. Dip the cylinder seal in the liquid and install in the cylinder groove.
15. Put the edge of the cover into the groove of the cylinder, lubricate the piston and cylinder with brake fluid, install the piston in the cylinder and put the second edge of the cover on the piston.
16. Put new covers on the caliper pins, lubricate the fingers with brake fluid before installing them in the caliper.
Installation
1. Install the caliper bracket, tighten the bolts.
2. Install the caliper, lubricate the threads of the upper pin bolt with locking compound and tighten the bolt to the specified torque.
3. Install pads.
4. Check the freedom of movement of the caliper in the bracket.
5. Connect the hose by installing two gaskets and tightening the ring fitting bolt.
6. Remove the plastic seal from the tank cap (or remove hose clamps).
7. Bleed air from hydraulic wheel brake (if the integrity of other circuits was not violated).
8. Press the brake pedal several times.
9. Install the wheel, lower the car.