Case N Series Tier 4 Loader Backhoe Hydraulic System Repair Manual

OEM Case Construction Hydraulic system service repair manual for N Series Tier 4 Loader Backhoe equipment with high-quality graphics and illustrations.

Language: English

Format: PDF

Pages: 128

Table of contents:

• Introduction 6
• 580N Hydraulic System 9
• Mechanical Controlled Backhoe System Overview 9
• Pilot Controlled Backhoe System Overview 10
• Super N Hydraulic System 12
• Mechanical Backhoe Controls without Power lift Overview 12
• Mechanical Control Backhoe with Power Lift System Overview 14
• Pilot control backhoe system overview 16
• Common Components 18
• Hydraulic Oil Reservoir 18
• Hydraulic Oil Filter Assembly 19
• 580N Gear Pump 21
• 580N Gear Pump Priority Spool Operation 22
• Super N Variable Volume Axial Piston Pump 24
• Pump displacement and system pressure control 26
• HPCO spool operation 29
• LS Spool Operation 30
• Torque Control 31
• Cold Start Unloading Solenoid 42
• Power Lift 43
• Power Lift Valve for Mechanical Control Backhoe 44
• Power Lift Valve for Pilot Control Backhoe 45
• Hydraulic System4 Case N series Tier 4 Service Training ManualPower Lift Relief Valve Operation 46
• Power Lift System Pressure Control – Mechanical Control Backhoe 48
• Power Lift System Pressure Control – Pilot Control Backhoe 50
• Attenuator hose 52
• Remote Hydraulic Pressure Test Ports 53
• Monoblock Open Center Loader Valve 54
• Priority Spool (580SN, 580SNWT, and 590SN) 58
• Load Check Valve 58
• Main Relief Valve (580N with mechanical backhoe controls) 58
• Spike Clipper (580SN, 580SNWT, and 590SN) 58
• Two stage Relief Valve (580N with pilot control backhoe) 59
• Anti Cavitation Valve 60
• Circuit Relief Valve 61
• Monoblock Open Center Backhoe Valve 62
• Low Leak Check Valve (Boom “B” port only) 68
• Regeneration Valve 69
• Load Check Valve 69
• Circuit Relief / Anti cavitation Valve 69
• Rexroth Closed Center Sectional Loader Valve 70
• Inlet Section and Priority Spool 72
• Working Sections 76
• Pilot Operated Sectional Backhoe Control Valve 80
• Inlet Section with Open Center Flow Control Valve Operation 84
• Hydraulic System5 Case N series Tier 4 Service Training ManualInlet Section with Flushing Valve and Spike Clipper 86
• SX14 “S Slice” Work Section 87
• SX14 “Classic” Work Section 87
• Stabilizer Section 89
• Adjustable circuit relief / Anti Cavitation Valve (SX14 Classic Sections) 90
• Fixed Circuit Relief / Anti Cavitation Valve (SX14 S-slice Sections 90
• Pilot Control System 91
• Pilot Manifold 92
• Pilot Joystick 96
• Pilot control hose routing 98
• Swing Dampening Valve (Pro Control) 100
• Swing Cylinder Cushion Operation 105
• Stabilizer Lock Valve 109
• Backhoe Auxiliary Hydraulics 110
• Open Center Uni-Directional Auxiliary Valve 111
• Closed Center Uni-Directional Auxiliary Valve 113
• Dual Auxiliary Hydraulics 115
• Steering 117
• Standard Steering 118
• Comfort Steer Option 119
• Loader EH Clam Option 121
• Hydraulic Bucket Quick Coupler 123
• Ride Control 127

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