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TM 9-2320-364-20-3
2-1969
(1) Start engine (TM 9-2320-364-10).
(2) Set CTIS controller selector to
HIGHWAY.
(3) Assistant presses CTIS
START button.
(4) Check CTIS front manifold
pressure relief valve for damage
and leaks.
(a) If pressure relief valve is
damaged or leaking, turn OFF
ENGINE switch and replace
valve (Para 13-10).
(b) If pressure relief valve is not
damaged or leaking, relief valve
is OK.
(5) Turn OFF ENGINE switch.
(6) Install front CTIS manifold
cover (Para 13-8).
AUDIBLE/VISUAL INSPECTION
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.
NOTE
Tires must be deflated to 60 psi (414
kPa) or less to perform this test.
Some air leakage (bubbles forming)
may occur during inflation/deflation
cycle at relief valve. A rapid exhaust
of air indicates a problem.
Pressure relief valve should remain
closed up to 85 psi (586 Kpa).
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