CONTENTS
CHAPTER 1
GENERAL CAUTIONS FOR MAINTENANCE WORK
CHAPTER 2
TECHNICAL DATA
2-1 Specifications ...................................................................................................................................................................... 2-1-1
2-2 Outline Drawing and Working Area ..................................................................................................................................... 2-2-1
2-3 Weight List of Main Parts .................................................................................................................................................... 2-3-1
2-4 Lifting Capacity List ............................................................................................................................................................. 2-4-1
CHAPTER 3
SERVICE STANDARDS
3-1 Machine Performance ......................................................................................................................................................... 3-1-1
3-2 Engine ................................................................................................................................................................................. 3-2-1
3-3 Undercarriage ..................................................................................................................................................................... 3-3-1
3-3-1 Rubber Crawler Specifications ................................................................................................................................... 3-3-1
3-4 Controls ............................................................................................................................................................................... 3-4-1
3-5 Hydraulic Equipment ........................................................................................................................................................... 3-5-1
3-5-1 Hydraulic Cylinders .................................................................................................................................................... 3-5-1
3-6 Implement ........................................................................................................................................................................... 3-6-1
3-6-1 Front Attachments ...................................................................................................................................................... 3-6-1
3-6-2 Blade Moving Device.................................................................................................................................................. 3-6-2
3-6-3 Bucket Teeth .............................................................................................................................................................. 3-6-2
3-7 List of Tightening Torque .................................................................................................................................................... 3-7-1
3-7-1 Machine...................................................................................................................................................................... 3-7-1
3-7-2 Engine ........................................................................................................................................................................ 3-7-3
3-7-3 Tightening Torque for General Bolts and Nuts ........................................................................................................... 3-7-3
CHAPTER 4
ENGINE
4-1 Exploded View (General layouts of major engine components).......................................................................................... 4-1-1
4-2 Measurement, Inspection and Adjustment .......................................................................................................................... 4-2-1
4-2-1 Measuring the Compression Pressure ....................................................................................................................... 4-2-1
4-2-2 Adjusting the Valve Clearance ................................................................................................................................... 4-2-2
4-2-3 Checking the V-belt Tension ...................................................................................................................................... 4-2-3
4-2-4 Checking the Fuel Injection Valve .............................................................................................................................. 4-2-3
4-2-5 Checking and Adjusting Fuel Injection Timing ........................................................................................................... 4-2-5
Summary of Contents for ViO12-2A
Page 1: ...SERVICE MANUAL EXCAVATOR ViO12 2A...
Page 2: ......
Page 3: ......
Page 9: ......
Page 21: ......
Page 23: ......
Page 37: ......
Page 55: ......
Page 57: ......
Page 99: ......
Page 109: ...5 3 1 5 ELECTRIC SYSTEM 5 3 Wiring Diagram...
Page 114: ......
Page 117: ...6 HYDRAULIC SYSTEM 6 1 3...
Page 118: ...6 HYDRAULIC SYSTEM 6 1 4...
Page 119: ...6 HYDRAULIC SYSTEM 6 1 5 This Page Intentionally Left Blank...
Page 121: ...6 HYDRAULIC SYSTEM 6 1 7...
Page 122: ...6 HYDRAULIC SYSTEM 6 1 8...
Page 123: ...6 HYDRAULIC SYSTEM 6 2 1 6 2 Hydraulic Circuit Schematic...
Page 125: ...6 HYDRAULIC SYSTEM 6 3 2...
Page 126: ...6 HYDRAULIC SYSTEM 6 3 3...
Page 127: ...6 HYDRAULIC SYSTEM 6 3 4 This Page Intentionally Left Blank...
Page 129: ...6 HYDRAULIC SYSTEM 6 3 6...
Page 130: ...6 HYDRAULIC SYSTEM 6 3 7...
Page 131: ...6 HYDRAULIC SYSTEM 6 3 8 This Page Intentionally Left Blank...
Page 133: ...6 HYDRAULIC SYSTEM 6 3 10...
Page 134: ...6 HYDRAULIC SYSTEM 6 3 11...
Page 135: ...6 HYDRAULIC SYSTEM 6 3 12 This Page Intentionally Left Blank...
Page 137: ...6 HYDRAULIC SYSTEM 6 3 14...
Page 138: ...6 HYDRAULIC SYSTEM 6 3 15...
Page 139: ...6 HYDRAULIC SYSTEM 6 3 16 This Page Intentionally Left Blank...
Page 141: ...6 HYDRAULIC SYSTEM 6 3 18...
Page 143: ...6 HYDRAULIC SYSTEM 6 3 20 This Page Intentionally Left Blank...
Page 145: ...6 HYDRAULIC SYSTEM 6 3 22...
Page 147: ...6 HYDRAULIC SYSTEM 6 3 24 This Page Intentionally Left Blank...
Page 149: ...6 HYDRAULIC SYSTEM 6 3 26...
Page 150: ...6 HYDRAULIC SYSTEM 6 3 27...
Page 151: ...6 HYDRAULIC SYSTEM 6 3 28 This Page Intentionally Left Blank...
Page 153: ...6 HYDRAULIC SYSTEM 6 3 30...
Page 155: ...6 HYDRAULIC SYSTEM 6 3 32 This Page Intentionally Left Blank...
Page 157: ...6 HYDRAULIC SYSTEM 6 3 34...
Page 159: ...6 HYDRAULIC SYSTEM 6 3 36 This Page Intentionally Left Blank...
Page 161: ...6 HYDRAULIC SYSTEM 6 3 38...
Page 162: ...6 HYDRAULIC SYSTEM 6 3 39...
Page 163: ...6 HYDRAULIC SYSTEM 6 3 40 This Page Intentionally Left Blank...
Page 165: ...6 HYDRAULIC SYSTEM 6 3 42...
Page 166: ...6 HYDRAULIC SYSTEM 6 3 43...
Page 168: ...6 HYDRAULIC SYSTEM 6 3 45...
Page 169: ...6 HYDRAULIC SYSTEM 6 3 46...
Page 219: ...6 HYDRAULIC SYSTEM 6 7 8 1 4 3 8 7 12 10 10 15 a b c Loctite 262 0 30Nm 0 45Nm...
Page 348: ...7 ADJUSTMENT AND REPAIR 7 5 31 6 Control Levers Pilot valves Control valve...
Page 349: ...7 ADJUSTMENT AND REPAIR 7 5 32 7 Upperstructure Implement Bucket cylinder Arm cylinder...
Page 351: ...7 ADJUSTMENT AND REPAIR 7 5 34 9 Undercarriage High speed travel solenoid valve...
Page 359: ......
Page 360: ...CHAPTER 8 PERIODIC INSPECTION AND SERVICING 8 1 List of Periodic Inspection and Servicing 8 1...
Page 361: ......
Page 364: ...CHAPTER 9 FUEL LUBE OIL AND GREASE RECOMMENDED 9 Fuel Lube Oil and Grease Recommended 9 1...
Page 365: ......
Page 367: ......
Page 369: ......
Page 406: ...CHAPTER 11 REFERENCE DATA 11 1 Specifications for Attachment 11 1...
Page 407: ......