U.S. Navy shipboard elevators are either the electromechanical winch type or the electrohydraulic ram type. Elevators are classified by their functional use.

The following designations are typical of elevators installed in Navy ships:

l Cargo elevator

l Weapons elevator

l Ammunition elevator

Figure 8-5.Auxiliary ship elevator.

l Personnel elevator

l Medical evacuation (MEDEVAC) (casualty) elevator

l Aircraft elevator

Some elevators serve several functions. For example, aircraft elevators are used to move weapons, cargo, personnel, and support equipment. Weapons elevators can serve as cargo elevators and can be used to evacuate personnel casualties in a mass or medical emergency situation. Figures 8-4, 8-5, and 8-6 illustrate some of the types of elevators aboard U.S. Navy vessels. Pay particular attention to the location of components and safety devices on each type of elevator.

The complexity of elevator systems is increasing and so is the degree of maintenance and training required to keep them operational. It is a must that you qualify and pass a PQS, Ordnance/Cargo Elevators, Operation/Maintenance. Only qualified personnel can work on elevators. When doing an elevator maintenance

Figure 8-6.Combatant (DD-963) elevator.

procedure, comply with all the procedures specified by the PMS.