In the fire department, all vehicles will require regular inspection of every aspect of their structure, systems, and operational functions. Servicing and ＿＿（52）＿＿ maintenance will ensure, as far as is practicable, that the vehicle will remain effectively available. The time taken to ＿＿（53）＿＿ these processes will be directly related to the accessibility of all the areas to be inspected and serviced and the design of the vehicle must provide this ＿＿（54）＿＿ . Additionally, in anticipation of the need to remove a major component, such as the engine, pump, tank, or ＿＿（55）＿＿ system, removable panels and suitable lifting connections must be in place to ensure that removal and replacement does not entail unacceptable extension of down-time.