CARGO BED COVER (CBC), TYPE IV, 5 T CARGO TRUCK, MTV, AND MTV TRAILER
THEORY OF OPERATION
each corner of the CBC. The base (19) at the bottom of the lifting/locking assembly (15) is positioned over
the corner fitting pulley assembly (18) on the lower section. Pins (20) protruding from the base (19) of the
lifting/locking assembly (15) are aligned with slots located in the interlocking extrusion at the corner fitting
pulley assembly (18).
The handle (17) is then swung up and locked into position using the hairpin cotter (16) removed earlier.
The Cargo Bed Cover is now in its fully extended and locked position. The lower personnel door panel
(11) is stored in an area on the inside roof surface when the CBC is in the retracted mode. The lower
panel is installed when the CBC is fully extended.
Once the CBC is in its fully extended and operational position, the lower section (11) of the personnel door
must have its hinge relocated from its stowed position before installing the lower door section (11) below
the upper section (10) of the personnel door using three hand knob screws (21), completing the personnel
door assembly (22). A door hold-open device (23) is provided on the outside of the personnel door to lock
the door into an open position if desired.
Ventilation ports (24) are provided on the left and right side walls of the CBC permitting air to enter the
Signal and power entry ports (25) are provided on the sidewalls of the CBC that permit power and signal
cables to enter and/or exit from the CBC. Block out panels on the inside of the CBC are provided that
allow the ports to be covered when not in use.
Three roof access steps (26) are located to the right of the personnel door at the rear of the CBC to
provide a foothold for personnel climbing to the roof of the Cargo Bed Cover. A handhold (27) is installed
on the top of the CBC to assist personnel in climbing onto the roof.
Lift rings (28) are provided on each corner of the roof to permit the CBC to be lifted into position or
removed from the bed of the M923, 5 T Cargo Truck, M1083, 5 T MTV, or M1095, 5 T MTV Trailer.