TM-9-2320-366-34-1 MTV Direct Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-34-1 TM 9-2320-366-34-1 TM 9-2320-366-34-1 TM 9-2320-366-34-1 TM 9-2320-366-34-1 FOUR WAY CONTROL VALVE ASSEMBLY FLOW TEST NOTE Test in worst direction (boom up or boom down). To select boom down: substitute port B for port A, in steps (2), (3), (14) and (15), and operate boom down, in step (8). (13) Shut down engine (TM 9-2320-336-10-1). (14) Disconnect hydraulic tester, hoses and adapters from port A and hose. (15) Connect hose to port A. (16) Remove drain pan from under vehicle. (1) Place drain pan under vehicle. (2) Disconnect hose from port A of boom lift control valve in four way (upper) control valve assembly. (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) Increase engine RPM to 1250-1450 RPM (TM 9-2320-366-10-1). (7) Position MHC power switch to ON (TM 9-2320-366-10-1). (8) Operate MHC boom up or down (TM 9-2320-366-10-1). (9) Observe reading of about 3.5 gpm (13 lpm) boom down or 5 gpm (19 lpm) for boom up at 2900-3100 psi (19996-21375 kPa). If flow is low, replace control valve. (10) Stow MHC (TM 9-2320-366-10-1). (11) Position MHC power switch to OFF (TM 9-2320-366-10-1). (12) Position PTO switch to off (TM 9-2320-366-10-1). 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. 2-1107 2-1107 2-1107 2-1107 2-1107