First, the braking effect is bad (brake soft). When the vehicle is running, the braking speed is small and the braking distance is long. Usually due to:
1 North Ben V3 parts of the pump or pump oil, can not guarantee sufficient oil pressure;
2 brake failure;
3 air in brake line.
Hydraulic braking system to produce poor braking performance of the reasons, the general can be based on the brake pedal travel, stepping on the brake pedal when the hard and soft feeling, the stability of the brake pedal to determine. Maintenance of the brake, the slow decline in the height of the pedal, indicating that the brake pipe rupture somewhere, poor sealing joints, the main pump or sub pump piston seal is bad, and the oil return valve bad. First, you can step on the brake pedal and observe whether there is any leakage of brake fluid. If the outside is normal, should check the pump or pump failure. When a few feet brake pedal height slightly higher, and has a sexy, indicating that the brake line into the air.
Two, brake suddenly failure. The car in the car, a foot or a few feet brake, North rush V3 parts brake pedal were all in the end, the brake suddenly failure. Reasons: 1 brake master pump or sub pump oil leakage; 2 brake master pump or pump piston seal failure, or brake oil in the air. If this happens, the driver should be rapid and continuous feet?
Three, brake deviation. When braking, the direction of deviation, in particular, is not equipped with ABS brake anti lock device of the car, the direction of control can not be the reason for the uneven wear of the brake, the main pump piston oil seal expansion, a sub pump leakage caused by.
Four, brake jitter. When the brake shimmy, steering wheel hand. The reason is that the brake disc is out of order, the brake caliper is deformed and the brake plate is tapered. In case of such a situation, the plant must be maintained.
Five, brake squeak. General for the North Ben V3 brake pads, brake pads or brake drum, shoe wear caused by uneven.
Six, the brake does not return. When you step on the brake pedal feel high and hard or no free travel, the car is difficult or difficult to start. Failure phenomenon: step on the brake pedal, pedal does not rise, no resistance. Need to determine whether the brake fluid is missing; brake pump, pipeline and the joint is leaking oil; total pump, pump parts are damaged.