Scheme of adjustment of clearance between pads and brake drum
A – front brake pad adjusting eccentrics; B – adjusting eccentrics of rear pads; S – left wheel; d – right wheel. The upper arrows show the direction of the car's movement
1. Press the brake pedal with a force of 98–117 (10–12 kgf) to ensure a tight fit of the pads to the drum.
2. While holding the pads in this position, turn the hexagonal heads of eccentrics A and B (see fig. Diagram of adjustment of clearance between shoes and brake drum) in the indicated direction until they touch the pads.
3. Release the pedal and turn the adjustment eccentrics back approximately 10°.
4. Press the brake pedal sharply 3–4 times and, with the pedal released, rotate the raised wheels to check that the brake pads do not touch the drum.
5. During a test drive, check the effectiveness of the brakes, the free and full travel of the brake pedal.
6. It is necessary to drive 5-7 km without using the brakes and, having stopped, to check by touch that the brake drums do not heat up. If the drums heat up strongly, repeat the adjustment.
7. If the required clearance between the pads and the drum cannot be established, replace the brake pads and readjust the clearance.