The Manual Brake or Slack Adjuster Assembly is used on commercial vehicles having Air Brakes with 'S' cam shaft. The purpose of this product is to transmit the braking torque to the 'S' cam and facilitate adjustment of the clearance between brake lining and the brake drum, which is primarily caused due to the wearing of brake lining.
The slack adjuster assembly is mounted on the 'S' cam shaft and one end is connected to the push rod of the brake chamber. When the brake pedal is pressed, the air is let into the brake chamber and thrusts the push rod out. This in turn moves the slack adjuster assembly. As slack adjuster assembly is mounted on the 'S' cam shaft, the shaft rotates and forces the brake shoes away from the other and presses against the brake drum. Thus, the brake is applied.

The Manual Brake or Slack Adjuster Assembly is used on commercial vehicles having Air Brakes with 'S' cam shaft. The purpose of this product is to transmit the braking torque to the 'S' cam and facilitate adjustment of the clearance between brake lining and the brake drum, which is primarily caused due to the wearing of brake lining.
The slack adjuster assembly is mounted on the 'S' cam shaft and one end is connected to the push rod of the brake chamber. When the brake pedal is pressed, the air is let into the brake chamber and thrusts the push rod out. This in turn moves the slack adjuster assembly. As slack adjuster assembly is mounted on the 'S' cam shaft, the shaft rotates and forces the brake shoes away from the other and presses against the brake drum. Thus, the brake is applied.