(1) Start engine (TM 9-2320-364-10).
(2) Set CTIS controller to HIGHWAY.
(3) Press START button.
(4) Check for air escaping from the axle
(a) If air is escaping, turn OFF ENGINE
switch, notify Supervisor to re-
place faulty CTIS hub seals.
(b) If there is no air escaping, CTIS hub
seals are OK.
(5) Turn OFF ENGINE switch.
Wear safety goggles when performing leakage tests 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.