Slack adjusters are components within a vehicle’s air brake system responsible for maintaining the proper clearance between the brake shoes and the brake drum or rotor. They automatically compensate for brake lining wear, ensuring consistent brake performance. A common task involving these components is ensuring their correct calibration, typically measured by pushrod stroke. An improperly adjusted component can lead to reduced braking force or brake drag.
Correct operation of the air brake system relies heavily on the proper functioning of these adjusters. Adequate adjustment provides optimal stopping power, improving vehicle safety and reducing the risk of accidents. Furthermore, properly maintained adjusters contribute to fuel efficiency by preventing unnecessary brake drag and extend the lifespan of brake components. Historically, manual adjustment was common, but modern systems often incorporate automatic functionalities to enhance reliability and reduce maintenance needs.