SOAPY WATER LEAK TEST - TM-9-2320-366-20-30119

TM 9-2320-366-20-3

SOAPY WATER LEAK TEST

(1) Apply soapy water solution to CTIS fittings on

outside of wheel.

(2) Observe fittings for bubbles indicating leaks.

(3) With wheel valve still connected to tire,

disconnect wheel valve air supply line from hub

at banjo bolt.

(4) Place open end of air supply line in container of

water. Look for air bubbles.

(5) Persistent bubbles from air line indicate faulty

wheel valve.

(6) Connect wheel valve to hub at banjo bolt.

NOTE

If air line from quick release valve

to affected wheel is partially

obstructed, air line to wheel cannot

escape back to quick release valve

immediately after tire is pressurized

causing wheel valve to remain

partially open and tire to lose

pressure. System will cycle again

when low pressure is checked after

30 seconds.

(1) Check air supply line(s) from quick release

valve(s) to affected wheel(s) for constrictions.

See illustration for fitting and quick release

valve locations.

(2) If air supply line is not constricted, quick

release valve for affected wheel is faulty.

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