Withdrawal
1. Remove the wheel with tire.
2. Disconnect the brake hose.
Note. Plug the brake hose to prevent fluid from escaping.
3. Remove the cylinder mounting bolt.
4. Remove the cylinder and blocks.
5. Remove the caliper mounting bolts from the steering knuckle.
6. Remove the caliper (brace).
Disassembly
1. Remove the piston boot.
2. Use compressed air to remove the piston.
Warnings:
- 1) When using compressed air, make sure your fingers are against the piston.
- 2) Be careful not to splash brake fluid.
- 3) Using a screwdriver, remove the piston o-ring from the caliper.
Examination
1. Check the caliper for wear, damage, cracks or rust.
2. Check the piston for damage, rust, cracks, and wear on the outer surface.
3. Check sleeve and pin for damage, rust.
4. Check up a spring of blocks and covers on damage.
Warnings:
- 1) When processing the surface of the piston, do not use sandpaper.
- 2) All rubber parts must be replaced with new ones.
6. Using a micrometer and a dial indicator, check the disc.
7. If necessary, replace the brake disc.
- 1) Remove the hub cap.
- 2) Remove the drive shaft nut.
- 3) Jack up the car and secure with stands.
- 4) Remove the tire wheel.
- 5) Remove the front wheel brake from the steering knuckle and hang it with wire.
- 6) With a special tool (09568-31000) Disconnect the ball joint of the lower arm from the steering knuckle.
- 7) With a special tool (09568-31000) Disconnect the drive shaft from the hub.
- 8) With a special tool (09526-11001) Disconnect the drive shaft from the hub.
- 9) Remove the hub and steering knuckle from the strut in one piece.
- 10) Remove the disc mounting bolts.
- 11) Install the special tools as shown in the figure.
- 12) Turning the special tool, remove the hub from the steering knuckle.
- 13) Replace the brake disc with a new one.
- 14) Load multipurpose grease into the bearings and apply it to the inner surface of the hub.
- 15) Remove the inner oil seal.
- 16) With a special tool (09517-21500) tighten the hub/steering knuckle to 230 Nm.
- 17) Rotate the hub to install the bearing.
- 18) Measure the wheel bearing starting torque.
- starting torque (limit value) wheel bearing - no more than 1.3 Nm
- 19) If the starting torque is 0, measure the hub bearing end play.
- 20) If the axial clearance of the hub exceeds the maximum allowable value and at the same time the nut is tightened to 230 Nm, then the bearing, hub and steering knuckle are not installed correctly. Repeat the disassembly and assembly operations.
- Axial clearance (limit value) wheel bearing - 0.11 mm or less
- 21) Remove the special tool.
- 22) Lubricate the bearing and steering knuckle with multipurpose grease.
- Recommended Lubrication - SAE J310 Multipurpose Grease, MLGL No. 2
- 23) Using the special tools, press in the oil seal (from the side of the drive shaft) into the steering knuckle until it touches the outer bearing race.
- 24) Lubricate the oil seal lip with multipurpose grease.
- 25) Install the front wheel brake kit and steering knuckle according to the tightening torques.
Assembly
1. Clean all parts except pads and gaskets with isopropyl alcohol.
2. Lubricate the piston o-ring and install the ring in the cylinder.
3. Mount the piston and piston boot as follows:
- 1) Apply grease to the inside of the caliper bore, the outside of the piston, and the piston boot.
- 2) Install the piston boot on the piston as shown.
- 3) Insert the piston boot into the inner groove of the caliper and push the piston into the caliper.
4. Mount the sliding parts as follows:
- 1) Lubricate the outer surface of the sleeve and the pin, the walls of the bore of the caliper sleeve, the pin boot and the sleeve boot.
- 2) Install the covers in the grooves of the caliper.
5. Install pads.
Note. Do not apply lubricant to the disc and pads.
6. Tighten the bolts.
Tightening torque, Nm:
- Sliding finger - 34-44
- Sliding Bolt - 22-31
- Holder bolt - 64-74
- Brake Hose Bolt - 25-29
Notes:
- 1) Check bolts for damage before tightening.
- 2) Remove air from the system.
Step on the pedal several times and check for fluid leaks from the connections.