The use of handbrake is very high during the use of the car. Handbrake is not universal insurance, its performance will decline with the increase in the number of uses. In many cases, the handbrake has been pulled up, but due to system failure or improper use, it does not achieve its intended effect, causing an accident.
The majority of drivers must be highly valued and should regularly maintain and inspect the car's handbrake.
To determine the working position of the handbrake handle and the foot brake pedal, the handbrake handle also has a pulling stroke. Normally, when the handle is lifted to 70% of the full stroke, the handbrake brake system should be in the normal brake position. Therefore, before checking the handbrake brake force, the 70% working point should be found. This work point It can be determined by the ratcheting of several ratchets. The car can be parked in a relatively quiet place, slowly pull up the handbrake, pull the rattling sound of several ratchets until the handle is pulled to the end. Then calculate the 70% position of the total number of sounds, this position is the effective working point of the handbrake handle.
Check the performance of the handbrake mechanism to drive the car to a slope with a large gradient and a good road condition (preferably an asphalt road). Hold the brakes and place the gear in neutral (if it is an automatic transmission, hang it in the N range). Put the handbrake The handle is pulled to the working point just determined. Then slowly release the brake pedal. If the car does not slip, it means that the handbrake is effective. Such inspections should be done once in uphill and downhill positions.
In addition to the braking performance, the sensitivity of the test handbrake should also be checked for handbrake sensitivity, which is especially important for starting a slope. Slowly on a slopeless road, slowly lift the handbrake handle and feel the handle's sensitivity and juncture. This inspection method will cause the handbrake mechanism to wear, so the number of inspections should not be too much. In the inspection process, if it is found that the braking performance or sensitivity of the handbrake is not ideal, it can usually be solved by adjusting the handbrake's operating cable. There is an adjustable compensation mechanism at the connection between the bottom of the handbrake handle and the cable, and the length of the brake cable can be stretched by loosening the lock nut. Some car adjustment mechanisms may be located at the bottom of the vehicle. If adjustments are inconvenient, they should be referred to professional maintenance personnel.
There are many car owners who think that the brake system is malfunctioning at a high speed. You can pull the handbrake to slow down. In fact, this approach is very dangerous. Since the handbrake mechanism is not precise, the braking forces on the left and right sides are unevenly distributed. When the handbrake is pulled at a high speed, it is easy to cause the rear wheels of one side to lock up and slip sideways. The correct approach is to slow down through the downshift and pull the handbrake to stop the car until the vehicle speed is very low.
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