TM 9-2330-271-14&P
d.
Installation (fig. 4-36).
4-52.
Swing-Up Landing Gear, XM847, XM848,
(1) Position landing gear leg assembly (4).
XM849, XM850, XM912, XM913
(2) Secure leg assembly mounting flange to
chassis with nine cap screws (6) and lock washers (7).
a.
General.
(3) Position diagonal brace (9) and secure to
(1) The XM847, XM848, XM849, XM850,
chassis and leg assembly (4) with two cap screws (8),
XM912, and XM913 semitrailers have two swing-up
lock washers (2) and nuts (1).
landing gears (fig. 2-3).
(4) Position side brace (5) and secure to
(2) The two swing-up landing gears are
chassis and leg assembly (4) with two cap screws (3),
separately operated two-speed landing gears, located at
lock washers (2) and nuts (1).
the drop, in the front of the semitrailer.
(5) Lower landing gear leg and remove towing
(3) The landing gears swing into horizontal
vehicle.
position for aircraft loading only.
e. Removal of Landing Gear Wheels (fig. 48).
b. Removal (fig. 49).
(1) Couple semitrailer to towing vehicle. Raise
(1) Couple semitrailer to towing vehicle, or
landing gear leg to remove semitrailer weight from leg.
block semitrailer for support.
(2) Remove nut (28) and bolt (25) securing
(2) Using crank assembly (1), retract landing
wheels (23) to axle (27). Remove wheels, axle and
gear leg (18) enough to clear the ground.
wheel caps (26).
(3) Unfasten four pin and chain assemblies (9,
f.
Cleaning and Inspection.
12, and 17) and remove two braces (10 and 11).
(1) Clean mud and dirt from exposed surfaces
(4) Remove three nuts (7), lock washers (8)
with water and a stiff brush.
and cap screws (19) and remove landing gear.
(2) Check for cracks, chipped edges or breaks.
c. Cleaning and Inspection.
Replace defective parts.
(1) Clean mud and dirt from all exposed
(3) Check axle for straightness. Replace if it
surfaces with water and a stiff brush.
cannot be straightened.
(2) Check operation of landing gear leg.
g.
Installation of Landing Gear Wheels (fig. 48).
Lubricate as required (fig. 3-1). Replace landing gear if
there is persistent binding.
NOTE
d. Installation (fig 49).
During installation, lubricate wheels
(1) Position landing gear and secure in place
with three screws (19), lock washers (8), and nuts (7).
and axle, using GAA Grease.
(2) Position two braces (10 and 11) and secure
(1) Position wheels (23) on axle (27). Place
with four pin and chain assemblies (9, 12, and 17).
one wheel cap (26) against head of bolt (25). Insert bolt
(3) Using crank assembly (1), lower landing
and cap through axle.
gear leg to ground.
(2) Insert other wheel cap (26) and nut (28) on
(4) Remove towing vehicle.
outer end of bolt. Tighten nut.
(3) Lower landing gear leg and remove
semitrailer from towing vehicle.
Section XII. MAINTENANCE OF SPRINGS AND TORQUE RODS
a.
General.
4-53. Springs, XM574, XM574E1, XM654, XM680,
(1) The XM574, XM574E1, XM654, XM680,
XM680E1, XM738, XM739, XM739E1, XM822, XM823,
XM680E1, XM738, XM739, XM739E1, XM822, XM823,
XM824
and XM824 semitrailers are equipped with tandem
suspension (fig. 4-37).
4-54
