Air Brake Practice Test

The statement is true. Slack adjusters play a crucial role in ensuring that the brakes engage properly. They are designed to compensate for the wear of brake linings and maintain the correct clearance between the brake shoes and the drum. If the slack adjusters move more than 2 inches while the push rod is mounted, it indicates that the braking system is out of adjustment. This excessive movement can lead to insufficient brake application, longer stopping distances, and overall reduced braking effectiveness. Therefore, maintaining the proper adjustment of slack adjusters is vital for safe vehicle operation and adherence to safety regulations. Regular inspections should be conducted to ensure slack adjusters are functioning correctly, and any excessive movement should prompt immediate adjustment or maintenance actions.