Danfoss H1 Service Manual
Also see for H1 Series: Technical informationTechnical informationTechnical informationTechnical informationTechnical information
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Contents
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System noise or vibration........................................................................................................................................................... 31Sluggish system response...........................................................................................................................................................31AdjustmentsPump adjustment.......................................................................................................................................................................... 32Standard procedures.................................................................................................................................................................... 32Charge pressure relief valve adjustment...............................................................................................................................32Charge check / HPRV adjustment............................................................................................................................................ 34Pressure Limiter Adjustment (060/068 only)....................................................................................................................... 34Engaging the Bypass Function (060/068 only).............................................................................................................. 38Displacement limiter adjustment............................................................................................................................................ 39Control Neutral Adjustment.......................................................................................................................................................40Mechanical neutral adjustment................................................................................................................................................42Pump setup.................................................................................................................................................................................43Servo adjustment..................................................................................................................................................................... 44Minor repairStandard procedures, removing the pump..........................................................................................................................47Electric control module................................................................................................................................................................47Control solenoids........................................................................................................................................................................... 49MDC Control.................................................................................................................................................................................... 49MDC illustration - tandems................................................................................................................................................... 50MDC Legend - tandems..........................................................................................................................................................50Angle sensor on EDC.....................................................................................................................................................................52Removal........................................................................................................................................................................................52Installation...................................................................................................................................................................................52EDC with angle sensor..................................................................................................................................................................53Removal........................................................................................................................................................................................53Installation...................................................................................................................................................................................53Front Shaft, seal, and bearing....................................................................................................................................................54Charge Pump (045/053 only).....................................................................................................................................................56Assembly......................................................................................................................................................................................58Charge check / HPRV (45/53)..................................................................................................................................................... 58HPRV (60/68).................................................................................................................................................................................... 60Removal........................................................................................................................................................................................60Inspection....................................................................................................................................................................................60Reassembly................................................................................................................................................................................. 60Charge pressure relief valve.......................................................................................................................................................61Control cutoff valve and brake valve...................................................................................................................................... 63Torque chartFastener size and torque chart..................................................................................................................................................66Plug size and torque chart..........................................................................................................................................................66Fasteners and plugs...................................................................................................................................................................... 67Service ManualH1 45/53/60/68 Tandem Closed Circuit Axial Piston PumpsContents4 | © Danfoss | June 2018 520L0928 | AX00000103en-US0303 |
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