TM 9-2320-366-34-1
2-991
UPPER MAIN CONTROL VALVE
PRESSURE/FLOW TEST
(1) Place drain pan under vehicle.
(2) Lift lid on lefthand aft storage box and slide off
cover over left stiffleg cylinder.
(3) Disconnect extend hose from extend port of right
stiffleg cylinder.
(4) Disconnect retract hose from retract port of left
stiffleg cylinder.
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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.
CAUTION
Exercise caution when operating stiffleg.
Failure to comply may cause hoses to rub against
stiffleg causing damage to equipment.
