e. Expansible Van (M820, M820A1, M820A2) (Cont d).
Locking plungers (located below left and right rear doors) are pushed downward
to release ratchets (14) and pawls (15) before expanding or retracting sides.
Plungers are pulled upward to lock van sides in expanded or retracted position.
Van body expanding and retracting wrench (stowed in bracket on inner part of
rear door) fits over ratchets (14). Wrench is turned counterclockwise to expand
left van side, clockwise to expand right van side.
Ratchet is turned by expanding and retracting wrench (13) to expand and retract
Pawl attached to locking plunger (12) locks ratchet (14), Pawl releases ratchet
when locking plunger (12) is pushed downward.
Lifting brackets on rear and front of
van body allow lifting van body
Ladder rack holds ladders on M820
and M820A1 vans.
Clearance and blackout lights are
controlled from vehicle cab.