Definition
A brake component that transfers pushrod motion to the foundation brake and maintains or permits adjustment of brake stroke.
Practical example
Example: A qualified technician investigates excessive pushrod stroke instead of repeatedly readjusting an automatic adjuster.
Why it matters
Improper stroke can reduce braking force and lead to violations or out-of-service conditions.
Slack Adjuster in CDL training
CDL students should be able to recognize this term, explain it in plain language, and connect it to safe vehicle operation, inspection, licensing, or freight work as applicable. Review the term in context and practice using it during classroom study and hands-on training.
Frequently asked questions
What does Slack Adjuster mean in trucking?
A brake component that transfers pushrod motion to the foundation brake and maintains or permits adjustment of brake stroke.
Why should a commercial driver understand Slack Adjuster?
Improper stroke can reduce braking force and lead to violations or out-of-service conditions.
This glossary is educational. Always follow current federal and state rules, the vehicle manufacturer’s instructions, and your motor carrier’s procedures.