1-22Change 1TM 9-2350-267-20LOCATION AND DESCRIPTION OF MAJOR COMPONENTS AND SYSTEMS (CONTINUED)STACKER SYSTEMThe stacker is used to transfer projectiles between the conveyorand projectile racks.Vertical Motion:The sliding stacker projectile tray is connected to a roller chain thattravels between the upper drive sprocket and lower idler sprocket.The drive sprocket is shaft-mounted to the hydraulic motor. Up-and-down movement is controlled by two pushbutton switchesmounted on the upper back of the chain guard. The pushbuttons ac-tuate the stacker directional control valve which allows hydraulicfluid to the motor. The projectile tray is prevented from falling by ahydraulic brake mounted on the motor.A winch assembly provides manual operation of the projectile traywhen hydraulic power is unavailable.Horizontal Motion:Movement of the stacker from one side of the cargo compartmentto the other is accomplished by pushing the stacker manually. Thestacker is supported at the top by a horizontal cross-member, and isguided along the vehicle floor by a wear strip. The roller bearingassembly, mounted to the vertical support assembly, provides easeof horizontal travel.
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