Replacing the brake pads

In Fig. 269 shows the details of the brake caliper. The appearance and position of a support after the removal of the wheels cm. Fig. 270. Despite the fact that here is the process of removing the one hand, to change the pads must be included:

- If you set the old block, when removed, they should be marked in accordance with the side of the installation and the position (external, internal);

- With the engine stopped several times to press the brake pedal to remove the vacuum system;

- Unscrew the cork brake fluid reservoir;

- Loosen the wheel bolts to install the car in front of the support and remove the wheel;

- Disconnect the brake pad wear indicator. To do this, remove the lid and remove the plug (Fig. 271);

- Using a screwdriver to remove the connection spring 7 (see. Fig. 269) between the caliper and caliper bracket;

- The back of the slide with a screwdriver to remove the plugs from the mounting bolts and turn their hex. Requires direct Allen key, which can be inserted into the socket head. The bent hexagon is not necessary, since the installation, tighten the bolts to a point. After removing the bolts as shown in Fig. 272, remove the support cylinder. The cylinder is hung on a wire to the front axle, so it does not hang on the brake hose;

- Remove the brake pads from the side of the bracket, the outer shoe is on the bracket and remove the caliper from the brake disk (Fig. 273). If the lining pads worn down to a thickness of 3.5 mm or less, or they zamasleny pads should be replaced complete. Although permitted lining wear pads to a thickness of 2 mm, the warning light in the instrument cluster lights up when the value of 3.5 mm. Always change both pads, even if one of them is worn out. If the pads are worn out very possibly jamming of the piston. In this case, should be given support in the repair. For reasons of security is not a description of the work;

- Repairs are needed and, if damaged cover mud in the cylinder body. Pad wear sensor must be replaced if damaged insulation of the contact plate, or any other part of it, including the wire;

- Check the brake discs and thoroughly cleaned before installing new pads. Measure the thickness of the disc, as shown in Fig. 274. You may need to be replaced or grinding.

When installing the pads, proceed as follows:

- Clean the surface at the brake pads in the caliper;

- Bit pumped brake fluid from the master cylinder reservoir as described above;

- Press the piston inside the cylinder. For this purpose the clamp shown in Fig. 275;

- Set with the spring block in the support cylinder, as shown in Fig. 276, and push in the direction of the arrows;

- To insert the external mounting block in place of the caliper bracket so that it took the position shown in Fig. 273;

- Insert the second connector into the support arm;

- Carefully place the cylinder body on blocks and screw the mounting bolts through the pads in the caliper bracket. Wrap them hexagon, as shown in Fig. 277, point 25-28 Nm. The shape of the hexagon must comply shown in the figure, to him it was possible to establish a torque wrench;

- After tightening the bolts to put on their caps;

- Insert the spring in the caliper and bracket;

- Wear a wire to spiral and attach to the contact support. Replace the cover of the plug connection;

- Several times strongly press a brake pedal that came with the disc pads;

- If necessary to add brake fluid to the reservoir;

- Set the wheels, lower the car and tighten the wheel bolts to 160-180 Nm;

- After setting a few times to push the brake pedal until you install it the normal course. If you do not, at first inspection while driving brakes can fail. If the pedal "fails" to check the system for leaks. During the run the first kilometers after installing new brake pads are not too sharply. To brake a good run-in, followed by several times during soft brake pedal is depressed with a speed of 80 km / h to 40 km / h. After each braking is necessary to wait a little longer to brake is not overheated.