TM 9-2320-366-34-1 2-1031 MONOBLOCK VALVE FLOW TEST NOTE Reduce engine speed to idle before performing pressure test. NOTE Tag hydraulic hoses, tubes, and fittings prior to disconnecting. 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. 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.   (1)  Close main return valve at hydraulic reservoir.   (2)  Place drain pan under vehicle.   (3)  Disconnect hydraulic hose from output         of monoblock valve.   (4)  Connect hydraulic tester hose to monoblock         valve output fitting with fittings and         adapters.   (5)  Connect hydraulic tester hose to monoblock         valve output hose with fittings and adapters.   (6)  Open main return valve at hydraulic reservoir.   (7)  Start engine (TM 9-2320-366-10-1).   (8)  Position PTO switch to on (TM         9-2320-366-10-1).   (9)  Increase engine RPM to 1250-1450 RPM (TM         9-2320-366-10-1). (10)  Push in and hold MANUAL OVERRIDE (TM         9-2320-366-10-1). (11)  Position TELESCOPE IN to IN (TM         9-2320-366-10-1) and note reading. (12)  If flow is not between 14-15 gpm (53-57 lpm),         repair monoblock valve (para 16-85). (13)  Push in and hold MANUAL OVERRIDE (TM         9-2320-366-10-1). (14)  Position TELESCOPE IN to IN (TM         9-2320-366-10-1) and note reading. (15)  If pressure is not between 3000-3100 psi         (20685-21375 kPa), repair monoblock valve         (para 16-85). (16)  Position PTO switch to off (TM         9-2320-366-10-1). (17)  Shut down engine (TM 9-2320-366-10-1). (18)  Close main return valve at hydraulic reservoir. (19)  Disconnect hydraulic tester and disassemble         test equipment fittings and adapters. (20)  Connect output hose to fitting on monoblock         valve . (21)  Open main return valve at hydraulic reservoir. (22)  Install center catwalk (TM 9-2320-366-20-4). (23)  Remove drain pan.