TM 9-2330-373-14 & P
4-34. AIR SUSPENSION SYSTEM (cont)
REPLACEMENT OF TORSION BAR ONLY
Block up semitrailer to remove all weight from semitrailer.
Remove front or rear wheels as applicable.
Remove attaching nuts (2), lock washers (3),
and cap screws (4), and loosen bracket nuts (8).
Place the chamfered end of the new torsion bar
against end of old torsion bar (11) and drive out
old torsion bar. Make sure notch in new torsion
bar is positioned to receive cap screw in outer
torsion bar clamp of left hand equalizing arm (5).
Install the cap screws (4), lock washers (3), and
nuts (2) and tighten to a torque of 200 lb-ft
(271.2 Nm). Tighten nuts (8) to a torque of 150
lb-ft (203.4 Nm).
Install the wheels and remove the blocking and
REMOVAL OF AIR SPRING
Block up semitrailer to remove all weight from suspension system.
Disconnect linkage from height control valve that supplies the faulty air spring. Exhaust pressurized air by moving
actuating arm down.