1 - brake shield; 2 - rubber cap; 3 - bleed valve; 4 - wheel brake cylinder; 5 - spring; 6 - cap; 7 - piston; 8 return spring; 9 - flat lock washer; 10 - friction lining; 11 - brake shoe; 12 - brake drum
Since August 1983, the KADETT D has been equipped with an automatic brake adjustment system.
When the brake pedal is pressed, the shoes -1- are pressed outwards against the drum. This relieves the spacer bar -6-, while the spring -2- pulls the adjusting lever -3- down. If the lining is worn, the adjusting lever turns the gear -4- on the spacer bar and thus lengthens the spacer bar. The distance between the shoes and the drum remains constant when the brake is not applied.
Since the brakes heat up during heavy braking, to compensate for the thermal expansion of the brake drum (for example, moving downhill) there is a heating element -5- on the spacer bar. When heated, the heating element expands and thus lengthens the spacer bar. After cooling, the normal gap is established between the brake shoes and the brake drum again. Thanks to the heating element, the wear compensation gear is prevented from rotating when the brakes are heated, since this could lead to the brake locking.
(Material was taken from a resource: opelbook.ru)
Visitor comments