(1) Loosen air hose 117 at inversion valve
control port 90-degree fitting supply port.
(2) Start engine (TM 9-2320-365-10).
(3) Apply service brakes (TM 9-2320-365-10).
(4) Check for presence of air at air hose 117.
(5) Shut down engine (TM 9-2320-365-10).
(6) If air is not present, replace air hose 117
(para 11-19).
(7) If air is present, replace inversion valve
control port 90-degree fitting (para 11-12).
(8) Tighten air hose 117 at inversion valve
control port 90-degree fitting supply port.
Change 1 2-1743
TM 9-2320-365-20-2