TM 9-2330-294-14
b. Lowering and Raising Ramps. To lower each
ramp, pull quick release lever on tie-down assembly
(8, fig. B-2) free of notches and lift. This action
Two jacking pads are welded underneath the
releases the chain from tie-down assembly. Remove
semitrailer frame at the rear corners. The jacking
chain from ramp tie down lug Lower ramp to
pads are located underneath the stenciled in-
ground. To raise and secure each ramp, lift ramp into
structions, "BLOCK HERE". Install blocks under
travel position. Attach chain to ramp tie down lug.
the jacking pads when loading a payload exceeding
Extend adjustable hooks on tie-down assembly
55 tons.
pressing adjustable hook lower lever and turning
tensioning grip. Insert chain link into chain pocket
of tie-down assembly and push link down until it
When loading or transporting a payload vehicle,
bottoms in pocket. Attach extended hook of tie-
eight removable curbs are provided for installation
down assembly to semitrailer frame loop and tighten
on top of the semitrailer bed, four on each side. Six
tensioning grip. If chain assembly is loose, release
sets of holes on each side of the semitrailer bed are
chain and repeat above procedure inserting a link
provided for locating and securing the curbing. Each
that is further up the chain. Attach chain hook on
set of holes provides three lateral positions for ad-
loose end of chain to frame loop.
justment. By selective positioning of the curbs,
c. Laterally Adjusting Ramps. The ramps can be
various payload vehicles can be guided onto the
set in three positions (two positions on semitrailers
semitrailer and prevented from shifting sideways
No. 1 through 200) for alinement with various
during loading and transport. The curb portion of
payload vehicle track widths. To laterally position
the curbing assembly can be positioned either
ramp, lift flap assembly and slide ramp to desired
toward the center of the semitrailer bed (inboard) or
position. Lower flap assembly.
the outer edge of the bed (outboard). Curbing should
d. Removing Ramps. (fig. 2-12). The ramps may
always be located in position "F" on each side of the
be removed from the semitrailer when it is to be
semitrailer when loading or unloading payload
backed into a dock for loading or unloading cargo.
vehicles. Position "A" curbing may temporarily be
To remove ramps, lower each ramp and lift flap
moved to position "F" for loading and unloading
assembly; pry under shaft retaining ring closest to
operations. Stow position "F" curbs if not used in
bumper with screwdriver point and rotate
position "A" before towing semitrailer. Refer to
screwdriver around shaft until ring is lifted from pin
locking groove. Remove retaining ring from shaft.
different payload vehicles.
Support, ramp and remove shaft from ramp and
frame bracket. Remove ramp. Reverse removal
procedure to install ramps.