SECTION 27 - REAR AXLE
1. REAR AXLE 2WS ......................................................................................................................................... 3
1.1 DESCRIPTION AND OPERATION....................................................................................................... 3
1.2 SPECIFICATIONS ................................................................................................................................. 6
1.3 DISASSEMBLY AND ASSEMBLY......................................................................................................... 8
1.4 FAULT FINDING.................................................................................................................................. 27
2. REAR AXLE 4WS “CARRARO”.................................................................................................................. 28
2.1 SPECIFICATIONS ............................................................................................................................... 28
2.2 DISASSEMBLY AND ASSEMBLY....................................................................................................... 32
2.3 FAULT FINDING.................................................................................................................................. 81
3. SPECIAL TOOLS........................................................................................................................................ 84
SECTION 33 - BRAKES SYSTEM
1. SPECIFICATIONS ........................................................................................................................................ 3
2. PARKING BRAKE......................................................................................................................................... 6
2.1 PARKING BRAKE ADJUSTMENT ........................................................................................................ 7
3. BRAKE CYLINDERS .................................................................................................................................... 8
4. OIL BRAKE TANK ...................................................................................................................................... 13
5. BLEEDING PROCEDURE.......................................................................................................................... 13
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
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