I believe that friends who often use cars know that the handbrake will be used as long as the car stops in the process of use. Because the driver leaves the vehicle, if he does not use the handbrake, the vehicle may slide and cause an accident. But we must remind the majority of riders that the handbrake is not a universal insurance, because the efficiency of the handbrake will slowly decline with the increase of the use times. Sometimes, it is clear that the handbrake has been pulled up, but the failure of the brake system causes accidents. Therefore, the majority of riders should regularly carry out appropriate maintenance and inspection of the handbrake. Next, the editor will share with you some notes on the normal maintenance and inspection of the handbrake.
Determine the working position of handbrake handle
Like the pedal of foot brake, the handbrake handle also has a pulling stroke. Usually, when the handle is pulled to 70% of the whole stroke, the handbrake system should be in the normal braking position. Therefore, before checking the braking force of the handbrake, we should first find out the 70% working point, which can be determined by counting the sound of ratchets. You can park the car in a quiet place, slowly pull up the handbrake, pull and count the ratchet wheel click sound, until the handle is pulled to the end. Then calculate the position of 70% of the total noise, which is the effective working point of the handbrake handle.
Check the performance of the handbrake mechanism
Drive the car to the slope with large slope and good road condition (preferably asphalt road), step on the brake, shift to neutral gear (if it is automatic transmission, shift to n gear), and pull the handbrake handle to the working point position just determined. Then slowly release the brake pedal. If the car does not slide, it shows that the handbrake is effective. The uphill and downhill should be done once each.
Don't use the handbrake at high speed
Many car owners think that in case of brake system failure, they can pull the hand brake to slow down. In fact, this practice is very dangerous. Because the handbrake mechanism is not precise and the braking force on both sides is uneven, pulling the hand brake at high speed will easily lock one of the rear wheels and cause sideslip. The correct way is to slow down by downshifting and pull the handbrake to stop the car when the speed is very low.