TM 9-2330-388-14
5-8.
Suspension
(7) Position a jack under the trunnion tube
close to the inside of each trunnion hanger.
a.
(8) Raise jacks just enough to support trunnion
(1) Position semitrailer on hard level surface
tube.
with front resting on landing gear.
(9) Remove four nuts, four washers, and four
WARNING
bolts which fasten the trunnion hanger to the mounting
Release air pressure from both air reservoirs
bracket. Repeat for opposite side.
before doing any work on brake lines or
other pressurized air lines.
(10) Slowly
lower
suspension
and
support
trunnion tube.
(2) Release air from both air reservoirs by
opening drain cocks on bottom of reservoirs, fig. 4-54.
b.
(3) Loosen wheel lug nuts while wheels are or
(1) Use lifting device to support spring.
ground.
(2) Remove four nuts and four washers from U-
(4) Jack up rear of semitrailer and support
bolts.
under frame securely until weight of semitrailer is
removed from springs and axles.
(3) Remove two U-bolts and wear pale.
(4) Using lifting device, lift spring from upper
trunnion hub and remove it from the suspension.
Figure 5-4. Suspension Assembly
5-12