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Why replace the brake tube?

Update:01-02-2021
Summary:

Rubber hoses are most likely to cause the brake pressur […]

Rubber hoses are most likely to cause the brake pressure to weaken. Because the rubber material has considerable elasticity, when the brake pedal is stepped on, the oil pressure suddenly increases, and the brake pressure is partially converted into the expansion of the rubber oil pipe, and its inner diameter is therefore forced to increase. The pressure in the brake oil circuit decreases due to this change, which results in a decrease in braking force and an increase in braking distance and a longer braking time. This does have hidden dangers to car safety, especially in the case of high-frequency and high-strength braking, this defect of rubber tubes will become more and more obvious. The solution is to replace rubber hoses with brake steel bellows. The inside of the brake steel roar is made of Teflon material, which has higher performance than nylon material, and the outside is bound by a metal braided mesh leather, hence the name brake steel roar. The combination of this layer of metal skin and Teflon material is to limit the expansion of the tube body, so that the braking force will not be lost due to expansion.

Brake hose related terms
1. Brake pipe
In addition to pipe joints in the brake system, it is used to transmit or store the hydraulic pressure, air pressure or vacuum degree of the flexible conveying pipe for the application of the automobile brake.
2. Sheath
A protective device installed on the outside of the hose to improve the ability of the hose to resist scratches or impact.
3. Brake hose assembly
This is the brake hose with pipe joints. The brake hose can be sheathed or without sheath.
4. Free length
The length of the exposed part of the hose between the two pipe joints on the hose assembly in a straight state.
5. Brake hose connector
In addition to the clamp, a connecting piece attached to the end of the brake hose.
6. Permanent connection of pipe joints
The connected pipe joints are assembled by crimping or cold extrusion deformation, or every time the hose is reinstalled, the damaged bushing and ferrule pipe joints are required to be replaced.
7, burst
Failure to cause the brake hose to be separated from the pipe joint or leak.

How to maintain the brake system
1. Replace the brake pads according to the mileage
The braking effect of a car is ultimately determined by the brake pads, so keeping the brake pads in good condition is the most direct maintenance method of the brake system. Brake pads and brake discs (drums) have a service life and must be replaced when they are worn to a certain degree. In normal use in general urban driving, their lifespan is about 50,000 kilometers, and the life of brake pads is about 30,000 kilometers, but the specific situation depends on the operation of the owner, and it is best to check every 10,000 kilometers.
2. New cars should pay attention to the brake system running-in
The new car has a running-in period at the beginning of its use, and the indispensable part is the running-in of the brake system. The running-in of the first 1,000 kilometers of the new car is very important, and the brake system also needs to be run-in. It is best not to have emergency braking. In order to run-in smoothly, the clutch must be depressed before stepping on the brake, but this is only an expedient measure in the extraordinary period. After 1000 kilometers, in order to extend the clutch
Life, still has to "brake before leaving".
3. The deviation of the car must be adjusted immediately when braking