(1) Loosen air hose 108 at TRAILER AIR SUPPLY
valve control port.
(2) Start engine (TM (9-2320-365-10).
(3) Push in SYSTEM PARK control
(TM 9-2320-365-10).
(4) Check for presence of air at air hose 108.
(5) If air is not present, replace air hose 108
(para 11-19).
(6) Shut down engine (TM 9-2320-365-10).
(7) Tighten air hose 108 at TRAILER AIR SUPPLY
valve control port.
Change 1 2-1742.11
TM 9-2320-365-20-2