TM 9-2330-294-14
transporting heavy payloads of 35 to 60 tons and
b. Suspension Air control valve. The air control
provides 85 psi air pressure in the air springs. This
valve regulates the amount of air pressure in the air
position is also used to lift the two front axles when
springs and activates the air axle lift assembly to
the semitrailer is empty.
raise the two rear axles. Before towing semitrailer,
(2) Half load. The half load position is used for
set air control valve handle in proper position for
transporting medium payloads of 15 to 35 tons and
payload being transported. The air control valve
provides 50 psi air pressure in the air springs.
handle is located on the left side and has 4 operating
(3) Light load. The light load position is used
positions.
(1) Full load. The full load position is used for
