(1)
Drain air tanks (TM 9-2320-366-10-1).
(2)
Loosen air hose 502 at AIR IN P port.
(3)
Start engine and charge air tanks
(TM 9-2320-366-10-1).
(4)
Check for presence of air at air hose 502.
(5)
If air is not present, go to step 9 of this
fault.
(6)
If air is present, replace air/hydraulic manifold
(para 19-4).
(7)
Drain air tanks (TM 9-2320-366-10-1).
(8)
Tighten air hose 502 at AIR IN P port.
TM 9-2320-366-20-3
Change 1
2-2228.5