Langdong brake pad problem? What brake pads does Lang use?

The difference is that the brake pads of the front wheels of the general car are larger than the brake pads of the rear wheels, because the brake pads of the car are composed of the main brake pads of the front wheels, so the brake pads are naturally larger, and the brake calipers are also larger.

Hello, go to the air separation gang of the brakes to see, the second check that the brake pads are hard plates. If you have a problem with your car, ask the owner. Technician at 4S shop, 10 minutes.

From Lang Dong. As can be seen in the car purchase manual, all Langdong series are equipped with front ventilated disc brake system.

The braking system is very important to the life safety of the driver, and once the braking system fails while driving, it often causes a major traffic accident.

Therefore, we should pay special attention to the maintenance of the car's brake system. Most cars use the front disc rear drum brake structure, under normal circumstances, the front brake shoe wear phase spike pair is faster, the rear brake shoe is used for a relatively long time, in the daily inspection and maintenance should focus on the following aspects:

1.Under normal driving conditions, every 5000 kilometers of the brake shoe is inspected, not only to check the remaining thickness, but also to check the state of the shoe wear, whether the degree of wear on both sides is the same, whether the return is free, etc., and the abnormal situation must be dealt with immediately.

2.Brake shoes are generally composed of two parts: iron lining plate and friction material, and you must not wait for the friction material part to wear out before replacing the shoes. For example, the front brake shoes of the Jetta car have a thickness of 14 mm for the new ones, while the limit thickness for replacement is 7 mm, which includes more than 3 mm of iron lining thickness and nearly 4 mm of friction material thickness.

Some vehicles have a brake shoe alarm function, once the wear limit is reached, the instrument will alarm to prompt the shoe to be replaced. The shoes that have reached the limit of use must be replaced, even if they can be used for a period of time, it will reduce the effect of braking and affect the safety of driving.

3.When replacing, replace the brake pads provided with the original spare parts.

Only in this way can the brake pads and brake discs be made.

The braking effect is best and the wear is minimal.

4.When replacing the shoes, a special tool must be used to push the brake cylinder back. No other crowbars can be used.

Hard pressing, which can easily cause the brake caliper guide screw to bend and make the brake pads stuck.

5.After the replacement, the socks must be stepped on a few brakes to eliminate the gap between the shoe and the brake disc, resulting in the first foot without brakes, which is prone to accidents.

6.After the brake shoe is replaced, it needs to be run in for 200 kilometers to achieve the best braking effect, and the newly replaced shoe must be driven cautiously.

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How do you change brake pads? How do you change brake pads? The method of changing the brake pads of Langdong:

1. Prepare the brake pads to be replaced, and remove the wheels where the brakes are located; 2. Remove the bolts of the brake caliper with a wrench combined with the sleeve, and remove the brake skin rock digging pins; 3. Clean the brake caliper with a rag and apply silencing paste; 4. Use the piston pressure pump to press the piston to the position that cannot be pressed; 5. Install the brake pads on the brake caliper, and install the new brake pads in place. Precautions for changing brake pads: 1. Before changing brake pads, open the lid of the brake fluid reservoir in the engine compartment and look at the height of the brake fluid page; 2. Avoid scratching the rim during the dismantling process; 3. After installation, observe the height of the brake fluid, within the appropriate height range; 4. After installation, the jujube beam is tested to check the braking effect.

The brake return spring is in the brake shoe assembly. The fall or damage of the brake return spring will cause the vehicle to brake difficult, and even lead to the failure of the vehicle's first brake, which needs to be installed and replaced by a repair shop to avoid the occurrence of accidents and accidents.

The replacement method of the brake return spring is as follows:

1. Pry off the hub cover and remove the wheel;

2. Through the wheel screw hole, toggle the wedge-shaped adjustment block upwards to relax the brake shoes, or put a punch in the screw hole, push the hand brake lever from both sides, withdraw the friction plate to remove the brake drum, and then remove the spring and the gap automatic adjustment rod;

3. There shall not be any oil stains on the brake drum and friction plate during installation, and the roller of the gap automatic adjustment rod shall be screwed to the limit, the right brake adjustment rod shall be a right-handed thread, and the left brake adjustment rod shall be a left-handed thread, which shall not be mistaken;

4. Install the hand brake cable, install the brake shoe and the following tension spring, the gap adjustment rod, the support spring on the shoe and the return spring on the upper part of the shoe, and then rotate the roller so that the diameter of the shoe is equal to 178mm, then install the brake drum, and lock the nut, and install the protective plugging cover and the wheel;

5. Finally, start the engine, brake about 50 times in a continuous wide track, and then adjust the handbrake, that is, the overhaul is completed.