(1) Start engine and allow air tanks to pressurize
(TM 9-2320-365-10).
(2) Shut down engine (TM 9-2320-365-10).
(3) Raise cab (TM 9-2320-365-10).
(4) Loosen air hoses 504 and 505 at cab
leveling valve input ports.
(5) Turn CAB knob to the left
(TM 9-2320-365-10).
(6) Check for presence of air at air hoses 504
and 505.
(7) Tighten air hoses 504 and 505 at cab leveling
valve input ports.
(8) If air is not present, go to step 14 of this
fault.
(9) If air is present, replace cab leveling valve
(para 16-8).
Change 1 2-1974.21
TM 9-2320-365-20-2