What is the free travel of the brake pedal?
1 Answers
The free travel of the brake pedal is set to ensure that there is no brake drag and to completely release the brake. The following is a related introduction about the free travel of the brake pedal: 1. Function: To prevent the brake pads and brake discs from becoming too tight and overheating, which could lead to brake failure. Without free travel, braking would be very uncomfortable and could even cause the wheels to lock up on their own. 2. Brake pedal free travel: To measure, place a straightedge between the brake pedal and the floor of the cab. Press the brake pedal down by hand and note the reading on the straightedge when free resistance is encountered. Then release the pedal and observe the reading again. The difference between the two readings is the free travel of the pedal. 3. Adjustment: The free travel of the brake pedal should be 1 to 8mm. If the free travel does not meet this specification, check whether the bolt of the pedal arm shaft and the installation of the master cylinder are loose, or whether the components are excessively worn. If any issues are found, tighten or replace them as necessary.