What connects the air brake chamber to the S-cam?
The slack adjuster. The chamber's pushrod attaches to the slack adjuster with a clevis and pin, and the slack adjuster turns the S-cam shaft, which spreads the brake shoes against the drum. An automatic slack adjuster also takes up shoe wear so pushrod stroke stays within the adjustment limit.
More on Air Brake Chambers
- What air brake chamber do I need for my truck?
- What does Type 30 or 30/30 mean on an air brake chamber?
- What is the difference between long stroke and short stroke air brake chambers?
- What are the signs of a failing air brake chamber?
- Can you cross-reference Bendix, Haldex, or Meritor air brake chambers?
- Why should you never open or rebuild a spring brake chamber?
- Do you sell air brake chambers in bulk or fleet packs?