(1) Start engine (TM 9-2320-364-10).
(2) Set CTIS controller to HIGHWAY.
(3) Press CTIS START button.
(4) Check for air escaping from the inside
portion of the wheel and tire assemblies.
(a) If air is escaping, turn OFF ENGINE
switch and notify Supervisor to
replace faulty CTIS hub seals.
(b) If there is no air escaping, inside
CTIS hub seals are OK.
(5) Turn OFF ENGINE switch.
Wear safety goggles when performing leakage test on valves. Failure to do so may result in serious
eye injury due to high pressure air.
Exercise extreme caution when working around wheels or under truck while engine is operating.
Movement of truck may cause injury or death to personnel.
Tires must be deflated to 60 psi (414 kPa)
or less to perform this test.