Case 580SR Service Manual page 591

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580SR
580SR+
590SR
695SR
SECTION 35 - HYDRAULIC SYSTEM
1. HYDRAULIC DIAGRAMS ............................................................................................................................. 3
1.1 HYDRAULIC DIAGRAM - 2WS SIDESHIFT MECHANICAL MODELS................................................. 3
1.2 HYDRAULIC DIAGRAM - 2WS SIDESHIFT PILOT MODELS .............................................................. 5
1.3 HYDRAULIC DIAGRAM - 4WS SIDESHIFT MECHANICAL MODELS................................................. 7
1.4 HYDRAULIC DIAGRAM - 4WS SIDESHIFT PILOT MODELS .............................................................. 9
1.5 HYDRAULIC DIAGRAM - 4WS CENTER PIVOT PILOT MODELS .................................................... 11
2. HYDRAULIC PUMP.................................................................................................................................... 13
2.1 DESCRIPTION AND OPERATION...................................................................................................... 13
2.2 SPECIFICATIONS ............................................................................................................................... 13
2.3 LOAD SENSING VALVE ..................................................................................................................... 16
2.4 REMOVAL ........................................................................................................................................... 18
2.5 COMPONENTS ................................................................................................................................... 19
2.6 DISASSEMBLY AND ASSEMBLY....................................................................................................... 20
3. CONTROL VALVES ................................................................................................................................... 24
3.1 CONTROL VALVES "REXROTH" (MECHANICAL MODELS) ............................................................ 24
3.2 "REXROTH" CONTROL VALVES (PILOT MODELS) ......................................................................... 40
3.3 SOLENOID VALVE FOR PILOTING THE BACKHOE CONTROL VALVE (WITH HYDRAULIC
CONTROL) ..................................................................................................................................................... 49
3.4 RELIEF VALVES ................................................................................................................................. 52
3.5 ACCUMULATOR "GLIDE RIDE" PARKER.......................................................................................... 60
4. HYDRAULIC SWING SYSTEM .................................................................................................................. 63
4.1 DESCRIPTION AND OPERATION...................................................................................................... 63
4.2 HYDRAULIC OIL FLOW ...................................................................................................................... 64
5. HYDRAULIC CYLINDERS.......................................................................................................................... 66
5.1 LOADER ATTACHMENT BOOM CYLINDER ..................................................................................... 67
5.2 LOADER BUCKET CYLINDER ........................................................................................................... 72
5.3 4X1 LOADER BUCKET CYLINDER .................................................................................................... 76
5.4 BACKHOE BOOM CYLINDER ............................................................................................................ 79
5.5 BACKHOE ATTACHMENT DIPPER CYLINDER ................................................................................ 83
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