Final answer:
Slack adjusters are responsible for adjusting the slack in the brakes to maintain consistent braking performance.
Step-by-step explanation:
Slack adjusters are a crucial component of a vehicle's air brake system. They are responsible for adjusting the slack in the brakes, ensuring proper operation and performance.
When the brakes are applied, slack adjusters compensate for the natural wear that occurs on brake linings by adjusting the distance between the brake shoes and the drum. This adjustment helps maintain consistent braking performance over time.
It is important for slack adjusters to be properly maintained and regularly inspected to ensure safe braking and prevent excessive brake wear.