The working principle of car handbrake

Handbrake For small cars, some are in the gearbox, and the drive shaft connected to a place there is a brake disc, similar to the disc brakes (and of course also have a drum), and then through the cable, the pull force to that, so To achieve parking brake.

Pull the handbrake, it uses a hydraulic cylinder, to promote the car under the hydraulic cylinder movement, and then drive the valve, (so the design is to the cab do not hear the sound of those air), and then after the valve action, Brake drive shaft, the car only hand brake brake drive shaft, when the completion of the brake shaft, if it is an ordinary truck is the use of hand brake rod pull pull to achieve long-term braking, if it is more upscale trucks, such as Volvo , Then use the electric control, when you push the handbrake when the fact that there is an electric pull the machine has been started, after the completion of the air brake he pulled the cable and locked, of course, have a direct pull brake.

First, pull the car handbrake to listen to the "click" sound, until the handle pulled to the end, and then calculate the total number of 70% of the sound position. This position is the effective point of the car handbrake.

Second, the general five to seven grid is a normal position between. Then, check the performance of the car handbrake, that is, to see if the handbrake can work effectively.

Third, the car to a large slope, the road in good condition on the slope, slam the brake pedal, hanging the gap, the car hand brake to just determine the location of the work, slowly release the brake pedal, if the car did not Slip occurs, indicating that the handbrake of the good performance. Or the car will be slightly sliding, but the sliding distance is very small, hand brake performance is normal.

Fourth, uphill and downhill should be done once, if the car hand brake brake performance or sensitivity is not ideal, you can adjust the hand brake to solve the line. It is best not to do it yourself, should be as soon as possible to the repair shop by professional maintenance personnel to deal with.