Which item should NOT be checked during a pre-trip inspection of a fire apparatus?

During a pre-trip inspection of a fire apparatus, it is essential to verify the operational readiness and safety of various critical components. The engine, brakes, and water supply system are all integral to the performance and safety of the vehicle during emergency responses.

The engine must function properly to ensure the apparatus can move and provide the necessary power to operate equipment. The brakes are crucial for safety, allowing the driver to stop the vehicle effectively in emergency situations. The water supply system is vital as it determines the apparatus's capability to deliver water at the required flow rates for firefighting.

Stationery equipment does not typically fall under the scope of a pre-trip inspection for the fire apparatus itself, as it refers to equipment that is fixed and not part of the mobile unit. Therefore, while it may be important to check the condition of the stationery equipment at a fire station or before a call, it is not a focus during the pre-trip inspection of the fire truck. This distinction highlights the priorities during the pre-trip process, emphasizing safety and operational readiness for the apparatus in use.