What is the purpose of chocking the wheels when checking slack adjusters?

Chocking the wheels is a crucial safety practice used to prevent the vehicle from moving while maintenance or inspections are being conducted, such as checking slack adjusters. When the wheels are chocked, it secures the vehicle in place, ensuring that it remains stationary despite the presence of gravitational forces or any unintentional movement caused by mechanical adjustments or other factors. This action is vital for the safety of the technician and others nearby, as it minimizes the risk of accidents that could occur if the vehicle were to roll unexpectedly. Properly chocking the wheels is a standard safety procedure in various transport and mechanical contexts, emphasizing the importance of maintaining a controlled environment during checks and repairs.