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TM 9-2320-364-20-2
2-1757
(1) Disconnect air line 2022 from right
air chamber on Axle No. 3.
(2) Connect a 0 to 160 psi (0 to 1103 kPa)
gage to air line 2022.
(3) Release PARKING BRAKE
(TM 9-2320-364-10).
(a) If there are not 125 4 psi
(861 28 kPa) present at air line
2022, perform Steps (4) and (5)
below and replace relay spring
valve No. 1 (Para 12-16).
(b) If there are 125 4 psi
861 28 kPa) present at air
line 2022, relay spring valve
No. 1 is OK.
(4) Apply PARKING BRAKE.
(5) Remove gage and connect air line
2022 to air chamber.
PRESSURE TEST
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.
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