What are slack adjusters?

Slack adjusters are critical components in a vehicle's brake system, specifically in air brake systems. They serve as lever arms connected to the brake chamber's push rod. When the brakes are applied, the slack adjusters help to transfer the force generated by the brake chambers to the brake shoes, thereby enabling effective braking.

The importance of slack adjusters lies in their ability to maintain proper brake adjustment. As brake linings wear down over time, slack adjusters automatically adjust to compensate for this wear, ensuring that the distance between the brake shoes and the drum or rotor remains within an optimal range for effective braking performance. This automatic adjustment is essential for maintaining the safety and effectiveness of the braking system.

Understanding the function and role of slack adjusters helps drivers and operators of commercial vehicles ensure their safety and the reliability of their braking systems.