1. Under normal driving conditions, check the brake shoes every 5000km. Not only the remaining thickness, but also the wear state of the shoes. Whether the wear degree is the same on both sides, whether the return position is comfortable, etc., it is abnormal The situation must be dealt with immediately.
2. Brake shoe is generally composed of iron liner and friction material of two parts, must not wait friction material parts are worn before the replacement of the shoe. For example, Jetta front brake shoes, the new film thickness of 14 mm, and the replacement of the ultimate thickness of 7 mm, including more than 3 millimeters of iron liner thickness and nearly 4 mm friction material thickness. Some vehicles with brake shoe alarm function, once reached the wear limit, the instrument will prompt the replacement of the shoe alarm. To reach the limit of the shoe must be replaced, even if can still be used for some time, will also reduce the effect of braking, driving safety.
3. To replace the original spare parts to provide the brake pads, the only way to make the braking effect between brake pads and brake discs best, wear the least.
4. Replace the shoe must use special tools to the top of the brake manifold. Can not use other crowbar hard pressure back, so easily lead to brake caliper guide screw bending, brake stuck.
5. After replacement, be sure to step a few feet brake to eliminate the gap between the shoe and brake disc, resulting in the first leg without brake, prone to accidents.
6. Brake shoe replacement, the need to run 200 km in order to achieve the best braking effect, just for the shoe to be careful driving
How to replace the brake pads:
1. Loosen the handbrake and loosen the hub screw of the wheel to be replaced (note loosening, do not unscrew completely). Top the car with a jack. Then remove the tire. Before moving the brake, it is best to use a dedicated brake fluid spray in the brake system spray to prevent the powder into the respiratory tract, affecting health.
2. Remove the brake caliper's screw (for some vehicles, just unscrew one of them, then loosen the other)
3. Hang the brake calipers with the rope to avoid damaging the brake pipe. Then remove the old brake pad.
4. Use c-clamp to push the brake piston back to the far end. (Please note that before this step, lift off the hood and unscrew the lid of the brake fluid box, because the top of the brake piston, brake fluid level will rise). Install the new brake pad.
5. Replace the brake caliper and torque the caliper screw to the required torque. Replace the tire and tighten the hub screw slightly.
6. Lower the jack and tighten the hub screws thoroughly.
7. Because in the process of changing the brake pads, we will brake the piston to the top, the beginning of the brakes will be empty. After a few steps in succession just fine.