TM 9-2320-360-10
2-18. TRAILER CONNECTION/DISCONNECTION (FIFTH WHEEL)(CONT)
NOTE
If AIR PRESS gage does not indicate 65 psi (448 kPa) or more,
trailer brakes will not release.
(23) Check that AIR PRESS gage (24) on cab dash indicates at least 65 psi (448 kPa) before
starting out.
(24) Push in TRAILER AIR SUPPLY button (25) in cab to pressurize air system.
(25) Push in PARKING BRAKE control (26) in cab to release parking brake.
(26) Apply brake pedal (27) and check for proper operation.
(27) Apply and release trailer hand brake control (28) to check trailer brake operation.
(28) Refer to TM 9-2330-381-14&P to adjust trailer steering.
2-154 Change 1