TM 9-2330-271-14&P
c.
To level van body, proceed as follows:
2-12.
Tarpaulin and Bows.
(1) Follow procedure of paragraph b above to
set leveling jacks in operating position.
a. All semitrailers except XM654, XM822, XM912
(2) Check the four levels at rear corners of
van body and adjust leveling jacks as required.
tarpaulin and bows from the stowed location under the
(3) Check the four levels at front corners of
van body. Level front end of van body, using the landing
gear.
assemblies are provided with a hook and fastener at
(4) Check all eight levels.
Adjust each
each end. The fasteners are screwed snugly into the
leveling jack or landing gear leg until the bubbles of all
tapped holes in the receiving plates at the top of the van
eight levels are centered.
walls. The tarpaulin is then stretched over the bows and
d. To retract and stow, proceed as follows:
tied.
(1) Insert handle in hole at bottom of
b. The XM844, XM845, XM847, XM848, XM849,
actuation screw and turn counterclockwise to retract
and XM850 semitrailers have rods (fig. B-4) instead of
actuator screw.
bows to secure the tarpaulin. Insert rods into sockets on
(2) Remove handle and stow in pintle recess.
semitrailer and stretch tarpaulin over rods Tie tarpaulin
(3) Pull out retaining pin securing long rear
ropes to each bracket incorporating the socket.
brace in position.
(4) Pull out retaining pin securing short side
2-13.
Escape Lock Assembly
brace to gusset on side of jack housing assembly.
(5) Swing leveling jack up to horizontal
Some doors are equipped with an escape lock to enable
position and secure with two retaining pins at rear of
personnel within the semitrailer to open locked doors.
semitrailer frame.
To operate the escape lock, push interior handle in to
(6) Secure
leveling
jack
shoe
on
disengage the clutch, turn handle, and open door. The
crossmember.
following doors are equipped with an escape lock:
2-11.
Ladder
Semitrailer
Door
XM574, XM574E1
Right side door
a. A 12-foot extension ladder is stored under all
Right rear door
semitrailers except the XM654 and XM913. A 16-foot
XM738
Right side door
aluminum extension ladder is stored under the XM654
Right rear door
semitrailer. The XM654 semitrailer also has a 12-foot
Left rear door
hinged ladder located on the right side of the rear wall.
XM739
Both side doors
b. Each semitrailer has two boarding ladders
XM739E1
Both left side doors
stored under the van. The XM574, XM574E1, XN654,
Right rear door
XM738, XM739, XM739E1, XM823, XMZ824, XM844,
XM822
Both right side doors
XM845, XM847, XM848, XM849, XM850, XM912 and
Rear door
XM913 semitrailers have two three-step ladders.
XM823
Left side door
c. The XM680 and XM680E1 and semitrailers
Both rear doors
have one three-step ladder and one four-step ladder.
XM824
Right side door
The XM822 semitrailer has two three-step ladders and
Both rear doors
one four-step ladder.
XM844
Left side door
d. Installing Boarding Ladder.
Rear door
(1) A boarding ladder latch assembly is
XM845
Right side door
located on each side of the ladder at the end to be
Rear door
attached to semitrailer.
XM847
Both side doors
(2) To attach the boarding ladder to the semi-
Right rear door
trailer, turn left latch assembly handle to the right and
XM848
Right side door
right latch assembly to the left.
Right rear door
(3) Insert ladder end into mounting holes
XM849
Right side door
under the door.
Both rear doors
(4) Turn left latch assembly handle to the left
XM850
Left side door
and right latch assembly handle to the right to secure
Right rear door
ladder to the semitrailer.
XM912
Left side door
Left rear door
XM913
Right side door
Right rear door
2-7