What is the first step when a slack adjuster is determined to be out of adjustment?

When a slack adjuster is found to be out of adjustment, the first essential step is to chock the wheels. This action is crucial for safety; it ensures that the vehicle is stabilized and does not move unexpectedly while maintenance work is being conducted. Chocking the wheels prevents accidents that could occur if the vehicle were to roll while adjustments or repairs are being made.

Taking this precaution is particularly important in emergency situations or when performing brake maintenance, as improper handling could lead to serious injury or damage. Once the wheels are securely chocked, a technician can then safely test and adjust the slack adjuster or decide on further actions, such as consulting a mechanic or replacing the part if it is found to be defective.