Hot New Products Trucks And Parts - Sinotruk Howo Chassis Parts-Brake shoe assembly WG9100440030 – JieCheng

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Specifications

Relevant Knowledge

What is the reason for the brake shoe alarm

Reasons and solutions for brake shoe alarms: 1. Lack of brake fluid. Check whether there is no oil in the brake oil pot, if there is no oil, add brake oil. 2. The brake pads are worn to the limit. Disassemble the tire, check the thickness of the brake pads with a gauge, and replace the brake pads if necessary. 3. The circuit is short circuited. Use a multimeter to measure the four-wheel brake pad alarm route, brake oil level transmission

First, what is the reason for the brake shoe alarm

Causes and solutions of brake shoe alarm:

1. Lack of brake fluid. Check whether there is no oil in the brake oil pot, if there is no oil, add brake oil.

2. The brake pads are worn to the limit. Disassemble the tire, check the thickness of the brake pads with a gauge, and replace the brake pads if necessary.

3. The circuit is short circuited. Use a multimeter to measure the four-wheel brake pad alarm circuit, the circuit of the brake oil level sensor, and the circuit of the handbrake switch for short circuit. If the circuit is short circuit, the sensor needs to be replaced and the circuit should be repaired.

The following is an introduction to the brake pads:

1. Brake shoes refer to the accessories that are expanded outwards by the action of the brake cam or push rod to suppress the brake drum to exert the braking effect. They are installed on the brake drum and are one of the key safety parts in the automobile brake system.

2. The shape of the brake shoes is like a half-moon. When the brakes are applied, the two half-moon-shaped brake shoes are stretched out under the action of the brake wheel cylinder, and the brake shoes are propped up to rub against the inner wall of the brake drum to slow down or stop. role.

Second. The brake pedal has a dry friction feeling

Reasons for the abnormal noise of the brake pedal:

1. The brakes are weak. This situation is generally caused by the loss of pressure in the transmission pipeline that provides the pressure. You should check whether the vacuum booster hose of the brake master cylinder and the interface of the engine are cracked or loose;

2. The brakes are trembling. This kind of situation mostly occurs on the old car body that has been driven for many years. Because of the large wear and tear, the surface flatness of the brake disc has been out of alignment to a certain extent. It can be solved by grinding the brake disc or directly replacing the brake disc;

3. The brake pedal does not return to its position. If this happens, it cannot be a normal situation. Under normal circumstances, the cause of this problem is that the brake master cylinder or sub-cylinder may have oil leakage, or the failure of the brake master cylinder and sub-cylinder causes the pedal to sink. It is also possible that the bearing of a certain shaft is worn, lacking oil, or damaged. If the bearing is damaged, the whole car will be uncoordinated. The brake pads may appear in an inappropriate position, causing the brake pedal not to return;

4. The brake becomes hard or soft. It is normal that the brake pedal is hard when the vehicle stops, because the vacuum booster pump is not working at this time. If the pedals are still stiff after the vehicle is started, it is likely that the vacuum tube is leaking or the vacuum pump is broken. If you find that the brakes have softened while driving, it is a very dangerous signal! This could mean that there is air in the brake fluid line, or that the brake fluid is leaking, and the vehicle needs to be pulled over immediately and taken to the shop for repairs.