| Safety Precautions | 5-12 | General Safety Information |
| Outline | 13-22 | General Precautions for Repairs, International Unit Conversion System (Based on Marks’ Standard Handbook for Mechanical Engineers), Table 1-1, Table 1-2, Table 1-3, Table 1-4 |
| Specifications | 23-38 | Components Name, Machine Dimensions, Specifications and Performance, Machine & Components Weight (Dry), Transportation, Type of Crawler Shoes, Type of Bucket, Engine Specifications |
| Attachment Dimensions | 39-62 | Boom, Fig. 3-1 Boom Dimensional Drawings, Table 3-1, Fig. 3-2 Clearance of Pin and Bushing on Boom Section, Table 3-2, Fig. 3-3 Clearance in Thrust Direction on Boom Section |
| Tools | 63-74 | Torque Specifications for Capscrews & Nuts, Screw and Tool Sizes, Torque Specifications for Joints and Hoses, Torque Specifications for Sleeve Type Tube Fittings |
| Standard Maintenance Time Table | 75-86 | Preface, Standard Working Time Table for the Maintenance of Excavator |
| Maintenance Standards and Test Procedures | 87-108 | How to Use Maintenance Standards and Precautions, Performance Inspection Standard Table, Measuring Engine Speed, Fig. 13-1 Engine Speed Measurement (the Above Figure Shows Concept) |
| Hydraulic System | 109-122 | Summary, Hydraulic Circuits and Component Models, Hydraulic Circuit Operation |
| Electrical System | 123-150 | How to Read Circuit Diagram and Harness Connection, Electrical Equipment & Harness, Fig. 23-1 Upper Frame Portion, Fig. 23-2 Upper Frame Portion |
| Components System | 151-152 | Hydraulic Pump, Pilot Valve, Control Valve, Slewing Motor, Travel Motor, Swivel Joint |
| Hydraulic Components | 153-222 | Hydraulic Pump, Operation, Swash Plate (Hanger), Rotary Group, Control Spring, Cover, Gear Pump |
| Electrical Equipment List | 223-224 | Diode List, Electrical Fittings List, Light List, Motor List, Relay List, Sensor List, Solenoid List, Switch List |
| Electrical Equipment Specifications | 225-232 | Fuse Box Specifications, Generator Specifications, Horn Specifications, Power Socket Specifications, Air Heater Specifications, Radio Specifications, Battery Specifications |
| Electrical Component Arrangement | 233-246 | Upper Frame Components, Relay Unit Portion, Fuel Tank Portion, Socket and Hour Meter Assembly, Work Light Portion, Cab Portion |
| General Disassembly and Assembly | 247-252 | General Disassembly Procedures, Tightening Torque Specifications |
| Attachments | 253-284 | Bucket Removal and Installation, Arm Removal and Installation, Boom Removal and Installation, Swing Bracket and Cylinder Removal, Dozer Removal and Installation |
| Upper Slewing Structure | 285-414 | Canopy and Cab Removal, Counterweight Removal, Pump Removal, Control Valve Removal, Engine Removal, Pilot Valve Removal, Slewing Motor Removal, Swivel Joint Removal |
| Travel System | 415-518 | Crawler Removal and Installation, Upper Roller Removal, Lower Roller Removal, Front Idler Removal, Sprocket Removal, Travel Motor Removal, Slewing Bearing Removal |
| Engine Troubleshooting and Maintenance | 519-770 | Engine Starting Trouble, Engine Rotation Trouble, Engine Output Drops, Exhaust Trouble, Engine Maintenance Schedule, Cylinder Head Inspection, Gear Train and Camshaft |
