Danfoss 51 Series Service Manual
Also see for 51 Series: Service Kit InstructionsRepair instructionsService manualService manualService manual
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Contents
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Port locations and Gauge InstallationThe following table and drawings show the port locations and gauge sizes needed. When testing systempressures, calibrate pressure gauges frequently to ensure accuracy. Use snubbers to protect gauges.Port InformationPort identifier Port size Wrench size Reading Gauge size, bar [psi]L1, L2 1 1/16-12 UNF 9/16 internal hex Case drain 10 bar [100 psi]M1, M2 9/16-18 UNF 1/4 internal hex System pressure 600 bar [10,000 psi]M3, M4, M5 9/16-18 UNF 1/4 internal hex Servo pressure 50 bar [1000 psi]X1, M7 9/16-18 UNF 1/4 internal hex Control pressure 50 bar [1000 psi]Port LocationsM2M1ThresholdadjustmentM3M5M1 M5M3AL2L1M7P106 434EM4M4X1M7X1Radial ported motorM3 M5B AM4System port AM1+M2System port BAxial ported motorService Manual Series 51 Hydraulic Proportional Controls Service ManualPressure measurements10 11009446 • Rev BA • July 2014 |
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