TM 9-2330-294-14
4-51. Air Suspension Check Valves (Two-Way)
(3) Remove valve (9) from vehicle and remove
fittings.
b. Installation. Install valve in reverse order of
a. Removal.
removal.
(2) Disconnect air lines.
Section IX. AIR SUSPENSION SYSTEM MAINTENANCE
justed downward, excess air pressure is exhausted at
the control valve. An air lift assembly on each rear
While the front two axles utilize an unsprung
equalizer beam operates at 100 psi air pressure to
walking-beam suspension system, the rear two axles
raise the rear axles approximately three inches. The
use an air suspension trailing-arm arrangement. Two
lift is also activated through positioning the control
valve handle. There is an adjustable regulator valve
support the frame on the rear axles. Air pressure in
for each pressure setting on the control valve. Each
the air springs can be regulated for different payload
regulator valve can be tested with a tire air gage for
weights. Either 85 psi, 50 psi or 15 psi air pressure is
routed into the air springs by the position of the
each with a hand control lever, will isolate that part
control valve handle. Air pressure requirements for
of the air suspension system that is found to leak
different payload weights are given on the in-
When air pressure in the suspension system is ad-