Air Brake Coach
Brake adjustmentQuestion 67 of 116

The push rod starts to pull out of the chamber while you turn the wrench. What does this show?

  1. The brake is correct
  2. The chamber is full
  3. You are turning the wrench the wrong way
  4. The drum is cold
Show answer

Correct answer: You are turning the wrench the wrong way

If the push rod pulls out, the wrench turns the wrong way.

Source: Air Brake Manual: A Guide for Instructors (Government of Alberta, Alberta Transportation, March/April 2012), Module 8: Foundation brakes, page 81

Practice brake adjustment

Questions last reviewed: 18 October 2026