TM 9-2320-366-34-1
2-1093
HOLDING VALVE CHECK
(1) Pick up light load with MHC (TM
9-2320-366-10-1).
(2) Observe that erection cylinder maintains position
for 30 minutes. If cylinder drifts, holding valve on
erection cylinder is faulty.
ERECTION CYLINDER VISUAL INSPECTION
(1) Start engine (TM 9-2320-366-10-1).
(2) Position PTO switch to on (TM
9-2320-366-10-1).
(3) Position MHC power switch to ON (TM
9-2320-366-10-1).
(4) Erect and stow mast two or more times.
(5) Observe erection cylinder for leakage.
(a) If erection cylinder leaks, cylinder is faulty.
(b) If erection cylinder drifts but does not leak,
thermal relief valve on erection cylinder is
faulty.
(6) Stow mast (TM 9-2320-366-10-1).
(7) Position MHC power switch to OFF (TM
9-2320-366-10-1).
(8) Position PTO switch to off (TM
9-2320-366-10-1).
(9) Shut down engine (TM 9-2320-366-10-1).
(10) Remove drain pan from under vehicle.
