TM 9-2320-366-34-1
2-1045
CONTROL VALVE FLOW TEST
WARNING
Wear approved eye protection when performing
pressure checks. Failure to comply may result
in oil getting into eyes. If oil contacts eyes, seek
medical attention immediately.
Drop hydraulic pressure to zero before
disconnecting any hydraulic hose, tube, or fitting.
Failure to comply may result in injury to personnel.
Fuel and oil are slippery and can cause falls.
Wipe up spilled fuel or oil with rags. Failure
to comply may result in injury to personnel.
(1) Place drain pan under vehicle.
(2) Disconnect hose from port A of valve manifold.
(3) Connect hydraulic tester between hose and
port A with test hoses and adapters.
(4) Start engine (TM 9-2320-366-10-1).
(5) Position PTO switch to on (TM
9-2320-366-10-1).
(6) Position MHC power switch to ON (TM
9-2320-366-10-1).
(7) Increase engine rpm to 1250-1450 rpm (TM
9-2320-366-10-1).
(8) Extend or retract outriggers (TM
9-2320-366-10-1).
(9) Observe flow and pressure reading of about
3.5 gpm for extend (13 lpm) or 2 gpm (8 lpm)
for retract at 3000-3100 psi (20685-21375
kPa).
(10) If flow is not approximately 3.5 gpm (13 lpm)
for extend or 2 gpm (8 lpm) for retract or
pressure is not between 3000-3100 psi
(20685-21375 kPa), replace control valve in
eight bank valve assembly (para 16-59).
(11) Stow outriggers (TM 9-2320-366-10-1).
(12) Position MHC power switch to OFF (TM 9-2320-
366-10-1).
(13) Postion PTO switch to off (TM
9-2320-366-10-1).
(14) Shut down engine (TM 9-2320-366-10-1).
(15) Disconnect hydraulic tester, hoses, and
adapters from port.
(16) Connect hose to port A.
(17) Remove drain pan from under vehicle.
