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CHAPTER 6. HYDRAULIC SYSTEMS.............................................................................................6-1

1. HYDRAULIC LIFT SYSTEM............................................................................................................................ 6-3

1.1 TROUBLE SHOOTING ......................................................................................................................... 6-5

1.2 SPECIFICATIONS ................................................................................................................................. 6-6

1.3 STRUCTURE AND OPERATION......................................................................................................... 6-9

1.4 PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING ........................................... 6-25

1.5 DISMANTLE AND ASSEMBLING ....................................................................................................... 6-27

2. PTO CLUTCH VALVE SYSTEM .................................................................................................................. 6-38

2.1 SPECIFICATIONS AND DIAGRAM .................................................................................................... 6-38

2.2 STRUCTURE AND OPERATION....................................................................................................... 6-39

2.3 ASSEMBLING AND DISASSEMBLING ............................................................................................. 6-44

2.4 TO CHECK AND TO REPAIR............................................................................................................. 6-46

3. POWER STEERING SYSTEM ...................................................................................................................... 6-47

3.1 TROUBLE SHOOTING......................................................................................................................... 6-47

3.2 INTRODUCTION .................................................................................................................................6-48

3.3 STRUCTURE AND OPERATION....................................................................................................... 6-50

3.4 PREPARATION STAGE FOR DISASSEMBLING AND ASSEMBLING ........................................... 6-55

3.5 TO DISMANTLE AND TO ASSEMBLE............................................................................................... 6-58

4. HYDRAULIC PUMP ....................................................................................................................................... 6-66

4.1 TROUBLESHOOTING ........................................................................................................................ 6-66

4.2 SPECIFICATIONS ............................................................................................................................... 6-66

4.3 STRUCTURE AND OPERATION....................................................................................................... 6-67

4.4 TO DISMANTLE AND TO ASSEMBLE............................................................................................... 6-69

5. HYDRAULIC FILTER ..................................................................................................................................... 6-71

5.1 STRUCTURE AND OPERATION....................................................................................................... 6-71

6. HYDRAULIC PRESSURE OPERATION PRINCIPLE AND TROUBLE SHOOTING ............................. 6-73

6.1 COMPOSITION OF HYDRAULIC DEVICE & FLOW DIAGRAM OF HYDRAULIC OIL................ 6-73

6.2 STEERING DEVICES ......................................................................................................................... 6-75

6.3 PTO SYSTEM ....................................................................................................................................... 6-77

6.4 HYDRAULIC PRESSURE RISE & FALL DEVICE........................................................................... 6-79

CHAPTER 7. BRAKE..........................................................................................................................7-1

1. TROUBLESHOOTING..................................................................................................................................... 7-3

2. SPECIFICATIONS ............................................................................................................................................ 7-3

3. TIGHTENING TORQUE .................................................................................................................................. 7-4

4. STRUCTURE AND OPERATION ................................................................................................................... 7-5

4.1 STRUCTURE......................................................................................................................................... 7-5

4.2 OPERATION ........................................................................................................................................... 7-7

5. DISASSEMBLING AND ASSEMBLING .......................................................................................................... 7-8

5.1 DRAINING THE TRANSMISSION FLUID........................................................................................... 7-8