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TM 9-2320-364-20-3
2-1921
(1) Check wheel valve for air leaks
(a)
If wheel valve is leaking, turn OFF
ENGINE switch and replace
wheel valve (Para 13-11).
(b)
If there are no leaks, wheel valve
is OK.
(2) Turn OFF ENGINE switch.
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.
High air pressure will be released from valve stem when valve core is removed. Stay clear of valve stem after
core is removed. Ensure all personnel wear suitable eye protection. Failure to comply may result in injury to
personnel.
(1) Remove valve cap from valve stem.
(2) Position air pressure gage on
valve stem.
(3) Start engine (TM 9-2320-364-10).
(4) Position CTIS controller to HIGH-
WAY setting.
(5) As assistant presses CTIS start
button, observe air gage.
(a)
If there is no increase in air
pressure, perform Steps (8)
and (9) below and replace
wheel valve (Para 13-11).
(b)
If there is an increase in air
pressure, go to Step (6) below.
(6) Set CTIS controller to CROSS
COUNTRY.
(7) As assistant presses CTIS start
button, observe air gage.
(a)
If there is no decrease in air
pressure, perform Steps (8)
and (9) below and replace
wheel valve (Para 13-11).
(b)
If there is a decrease in air
pressure, wheel valve is OK.
(8) Turn OFF ENGINE switch.
(9) Remove air gage.
(10) Install valve cap on valve stem.
PRESSURE TEST
Some air leakage may occur at breather during
inflation/deflation cycles. Rapid exhaust of air a
breather indicates a faulty valve.
NOTE
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