LOCATION AND DESCRIPTION OF MAJOR COMPONENTS AND SYSTEMS (CONTINUED)TOP REAR DOORThe top rear door is hydraulically actuated. In the raised position,it forms an overhead ballistic shield, providing protection betweenthe M992 and the supported howitzer. The door is also used todeploy and position the conveyor. From the closed position, it canbe raised to any position through 120 degrees. The top rear doordirectional control valve can be actuated by two thee-positionswitches mounted inside the rear door opening on the left side. Oneis mounted high, the other low, for inside and outside access.In the event of hydraulic power loss, the door is prevented fromclosing by a pilot check valve which stops hydraulic fluid backflowwithin the door hydraulic system. In addition, a mechanical lockengages the vehicle hull in the 45- and 90-degree positions.TA3099391-23TM 9-2350-267-20
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business