2. Measure your brake pedal height (pic. 14.2). It should be: left-hand drive vehicles: 163.5-166.5 mm, right-hand drive vehicles: 162.5-165.5 mm.
Pic. 14.2. Measure brake pedal height
3. If the measured height does not match the nominal value, adjust it as follows:
- disconnect the wiring connector from the brake light switch;
- adjust the brake pedal height. To do this, loosen the push rod locknut and turn the push rod with pliers (pic. 14.3);
Pic. 14.3. Adjust the brake pedal height. To do this, loosen the push rod locknut and turn the push rod with pliers
- tighten the push rod locknut;
- depress the brake light switch until it touches the pedal lever (when pressed, the switch should slide);
- lift the brake pedal and rotate the brake light switch to adjust the distance (pic. 14.4);
Pic. 14.4. Lift the brake pedal and rotate the brake light switch to adjust the distance
- connect the wiring connector to the brake light switch;
- make sure the brake lights do not come on when the brake pedal is not depressed.
4. With the engine off, press the brake pedal twice or three times to create a vacuum in the brake booster. After that, press the pedal with your hand and check that the stroke length before the start of resistance (gap) matched the required value (pic. 14.5). Rated value: 3-8 mm.
Pic. 14.5. Depress the pedal with your hand and check that the stroke length before the start of resistance (gap) matched the required value
5. Start the engine and press the brake pedal with a force of 490 N, and then measure the distance between the brake pedal and the floor of the car (pic. 14.6). Rated value: 80 mm or more.
Pic. 14.6. Measure the distance between the brake pedal and the floor of the car
6. If the gap does not correspond to the nominal value, check the absence of air in the brake system, as well as the correct distance between the brake lining and the drum.