1. Under normal driving conditions, check the brake shoe every 5000 km, not only check the remaining thickness, but also check the wear state of the shoe, whether the wear degree on both sides is the same, whether it can return freely, etc. if abnormal conditions are found, they must be handled immediately.
2. The brake shoe is generally composed of iron lining plate and friction materials. Do not replace the shoe until the friction materials are worn out. For example, the thickness of the front brake shoe of Jetta is 14mm, while the replacement limit thickness is 7mm, including more than 3mm iron lining plate thickness and nearly 4mm friction material thickness. Some vehicles are equipped with brake shoe alarm function. Once the wear limit is reached, the instrument will alarm and prompt to replace the shoe. The shoe that has reached the service limit must be replaced. Even if it can be used for a period of time, it will reduce the braking effect and affect the driving safety.
3. When replacing, replace the brake pads provided by the original spare parts. Only in this way can the braking effect between the brake pads and brake discs be the best and the wear be the least.
4. When replacing the shoe, the brake cylinder must be pushed back with a special tool. It is not allowed to press back with other crowbars, which will easily lead to bending of the guide screw of the brake caliper and jamming of the brake pad.
5. After replacement, be sure to step on several brakes to eliminate the gap between the shoe and the brake disc, resulting in no braking of the first foot, which is prone to accidents.
6. After the brake shoe is replaced, it needs to be run in for 200km to achieve the best braking effect. The newly replaced shoe must be driven carefully