How can you properly check slack adjusters?

Study for the Mississippi CDL Test. Prepare with flashcards and multiple-choice questions, each question featuring hints and explanations. Get ready for your Mississippi CDL exam!

To properly check slack adjusters, the correct approach is to pull hard on each slack adjuster after releasing the parking brake. This method is effective because it allows you to assess the functionality of the slack adjuster and whether it is operating within the proper tension range. A slack adjuster that is functioning correctly should have a certain amount of movement or free play when pressure is applied, which indicates that it is effectively maintaining the brakes.

In contrast, rolling the vehicle forward is not a reliable way to check slack adjusters as it does not provide a clear indication of their condition. While visual inspection can identify obvious issues such as corrosion or misalignment, it does not measure the actual operational effectiveness of the adjusters. Measuring physical length may assist in identifying wear, but it does not assess their performance in real-time. This highlights why physically testing the slack adjusters through a hands-on method provides the most accurate reflection of their condition and suitability for safe vehicle operation.

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