TM 9-2320-366-34-1
2-1081
FOUR WAY CONTROL VALVE ASSEMBLY FLOW TEST
(1) Disconnect tube to (control lockout) two
way solenoid valve from elbow on port
P. Remove elbow.
(2) Connect hydraulic tester, with test
hoses and adapters, between port P and
tube.
(3) Start engine (TM 9-2320-366-10-1).
(4) Position PTO switch to on (TM
9-2320-366-10-1).
(5) Increase engine rpm to 1250-1450 rpm (TM
9-2320-366-10-1).
(6) Position MHC power switch to ON (TM
9-2320-366-10-1).
(7) Operate any MHC function (Hoist, Boom,
Telescope or Swing).
(8) Observe flow of 3-9 gpm (11-34 Ipm). If flow is
low, two way valve is faulty.
(9) Position MHC power switch to OFF (TM
9-2320-366-10-1).
(10) Position PTO switch to off (TM
9-2320-366-10-1).
(11) Shut down engine (TM 9-2320-366-10-1).
(12) Disconnect hydraulic tester, hoses and
adapters.
(13) Install elbow to port P.
(14) Connect tube to elbow.
(15) Remove drain pan from under vehicle.
