TM 9-2330-271-14&P
(2) The dolly assembly is removable for air
sembly Lower van body on dolly assembly.
transport.
(2) Secure in position with the attaching
(3) The semitrailer is equipped with a kingpin
hardware removed in steps (6), (7), or (8) above. On the
for use with the fifth wheel of the towing vehicle. The
XM912 and XM913 semitrailers, make certain the two
XM574, XM574E1, XM654, XM680, XM680E1, XM738,
bolts, washers, nuts, and cotter pins are installed at the
XM739, XM739E1, XM822 (serial number S2669),
rear of the dolly assembly.
XM823, and XM824 semitrailers incorporate the
(3) Remove hoist and retract lifting eyes.
standard two inch kingpin. Refer to paragraph 4-58 for
(4) Connect
air
lines
and
electrical
the air mounted fifth wheel kingpin and paragraph 4-60
connections.
for the resilient kingpin used on some vans.
b. Removal.
4-73.
Name, Data and Instruction Plates
(1) Extend lifting eyes to the operating
position.
a. Removal. Remove screws securing plate.
(2) Place one wheel chock in front of wheel
Remove plate.
on one side of semitrailer. Place the other wheel chock
b. Inspection. Inspect for rust. Remove rust and
at rear of wheel on other side.
clean thoroughly. Apply a heavy coat of clear lacquer.
(3) Use a hoist equipped with a van-width
c. Installation. Position plate and secure with
spreader bar with cables and hooks to attach to the lifting
screws.
eyes.
(4) Uncouple the air lines and install dummy
4-74.
Level Assembly (fig. 72)
(5) Disconnect electrical connections.
a.
General.
(6) On the XM574, XM574E1, XM654,
(1) Eight level assemblies are installed at
XM680, XM680E1, XM738, XM739, XM739E1, XM822
each side of each corner of the semitrailer.
(serial number S2669), XM823, and XM824 semitrailers,
(2) The levels are used to aid the leveling of
remove 24 nuts, washers and screws securing dolly
the semitrailer.
assembly.
b. Removal (fig. 72).
(7) On the XM822 (after serial number
(1) Remove two nuts (6), sleeve spacers (2)
S2669), XM844, XM845, XM847, XM848, XM849, and
and screws (3). Remove level (4).
XM850 semitrailers, remove six nuts, washers and
(2) Some semitrailers use rivets to attach the
screws securing dolly assembly.
level. For these semitrailers, remove the two rivets and
(8) On the XM912 and XM913 semitrailers,
remove the level
remove two cotter pins, two nuts, two washers and two
(3) Remove two rivets (or two screws (7) on
bolts from rear of dolly assembly. Remove four nuts,
some semitrailers securing bracket (5) to body. Remove
washers and screws from sides and front of dolly
bracket.
assembly.
c. Installation (fig. 72).
(9) Using the hoist, raise the van body.
(1) Position bracket (5) and secure with
(10) Pull dolly assembly toward the rear, away
screws (7) or rivets.
from the van body
(2) Position level (4) on bracket (5) and
(11) Lower van body to desired location.
secure with sleeve spacer (2), screw (3) and nut (6).
c
Installation
(3) On those semitrailers using rivets as at-
(1) Raise van body in position over dolly as-
taching hardware, position level (4) on bracket (5).
Secure level with two spacers (2) and rivets.
4-70
