Parking brake — general information

Mechanical drive includes 3 lever (see fig. Parking brake drive parts), which, together with the return lever, is mounted on a bracket that is attached to the floor of the body. The return lever is connected with a pin to the front cable 2, the other end of which passes through the hole in the guide 9 of the rear cable and a nut or lock nut is screwed onto the threaded lug. The movement of the front cable is guided by roller 8.

The middle part of the rear cable passes through the groove of the guide 9, the tension of which is regulated by a nut screwed onto the threaded lug of the front cable. A spacer sleeve 10 is installed between the guide 9 and the adjusting nut.

The ends of the rear cable pass through the shell, one end of which is attached to the brake shield, and the other is installed in the groove of the body bracket. At the rear ends of the cable there are tips, each of which is connected to the hook of the lever 2 (see fig. Rear wheel brake) manual drive pads. This lever is pivotally attached to the brake shoe with a finger and rests with its upper part against the groove of the expander bar 9. The rib of the brake shoe enters the opposite groove of the bar.

When the lever is raised 3 (see fig. Parking brake drive parts) there is a tension of the front and rear cables. At the same time, lever 2 (see fig. Rear wheel brake), turning on the finger, through the spacer bar 9 will first press one shoe to the brake drum, and then, turning relative to the point of contact with the spacer bar and acting as a two-arm lever, will press the other shoe to the drum.