Part of the Hitachi Repair Manuals.
Looking for the Hitachi ZAXIS70 Technical + Workshop Manual PDF straight from the factory? All 1017 pages of it are here (Technical Manual OEM #TO1CDE-00 plus Workshop Manual OEM #W1CDE-00), covering the ZAXIS70 and 70LC hydraulic excavators end to end. Inside: full electrical circuit diagrams, hydraulic schematics for the pump device, control valve, swing and travel devices, plus a huge troubleshooting section with fault code diagnosis and operational performance tests. You also get the Workshop Manual's disassembly and assembly procedures for the upperstructure, undercarriage, and front attachment, right down to cab glass removal and installation. Set the travel main relief to 31.4 MPa and fit a 12 micron full flow filter element, not whatever your parts counter guesses. Chasing an Icx system fault with no diagrams gets old fast. Bookmarked PDF with a real text layer; type a spec, jump straight to it, and get wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and General Information | 2-26 | Manual Composition, Page Numbering, Safety Alert Symbols, Units of Measurement |
| Specifications and Component Layout | 27-143 | Machine Specifications, Component Layout, Electrical System, Hydraulic Components |
| System | 27-72 | Control System, Hydraulic System, Electrical System, Engine Control, Valve Control, Pilot Circuit, Main Circuit |
| Component Operation | 73-143 | Pump Device, Swing Device, Control Valve, Pilot Valve, Travel Device, Swing Motor, Main Relief Valve |
| Operational Performance Test | 144-237 | Engine Performance Tests, Excavator Performance Tests, Component Testing, Performance Standards |
| Troubleshooting | 238-404 | Fault Code Diagnosis, Electrical System Inspection, Icx System, Troubleshooting Procedures |
| Engine and Accessory | 405 | Engine Assembly, Lubricating System, Cooling System, Fuel System |
| Engine Harness | 405 | Engine Harness Wiring Diagram, Fuel Sensor Pump, Glow Plug Circuit, Alternator Wiring, Starter Circuit |
| Monitor Harness | 406 | Monitor Harness Wiring Diagram, Switch Box, Key Switch Wiring, Horn Switch, Radio Wiring |
| Cab Harness | 407 | Cab Wiring Harness Diagram, Wiper Motor Circuit, Monitor and Console Wiring, Relay Box, Fuse Box |
| Electrical Circuit Diagram (2) - Connectors | 408 | Harness End Connector Pinouts, Sensor Connectors, Relay Connectors, Mc-A/Mc-B/Mc-C Connectors |
| Electrical Circuit Diagram (1) | 409 | Main Electrical Circuit, Monitor Wiring, Controller Wiring, Battery Relay Circuit, Key Switch Circuit |
| Hydraulic Circuit Diagram | 410 | Control Valve Circuit, Pump Device Circuit, Swing and Travel Circuit, Blade Circuit |
| Workshop Manual Introduction and Safety | 411-442 | Manual Composition, Safety Alert Symbols, Seat Belt Safety, Back-Over and Swing Accident Prevention, High-Pressure Fluid Hazards |
| General Information | 443-466 | Precautions for Disassembling and Assembling, Maintenance Standard Terminology, Tightening Torque Specification, Torque Chart, Piping Joint |
| Upperstructure | 467-646 | Cab Removal and Installation, Counterweight, Main Frame, Pump Device, Swing Device, Pilot Valve |
| Undercarriage | 647-740 | Swing Bearing, Travel Device, Front Idler, Upper and Lower Roller |
| Front Attachment | 741-790 | Front Attachment Removal and Installation, Cylinder Disassembly and Assembly, Maintenance Standard |
| Engine and Accessory | 791-1017 | Engine Assembly, Engine Reassembly, Lubricating System, Maintenance Standard |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| ZAXIS70 | ||
| Track Shoe Width (ZAXIS70) | 450 mm (1’ 6”) | p. 7 |
| ZAXIS70LC | ||
| Track Shoe Width (ZAXIS70LC) | 450 mm (1’ 6”) | p. 8 |
| All Models | ||
| Full Flow Filter | 12 µm | p. 23 |
| Suction Filter | 177 µm | p. 23 |
| Main Relief Set-Pressure (Travel) | 31.4 MPa | p. 21 |
| Main Relief Set-Pressure (Front Attachment) | 26.0 MPa | p. 21 |
| O-ring replacement interval | Every 2 years | p. 461 |
| Fuel hose (Fuel tank to filter) replacement interval | Every 2 years | p. 461 |
| Bolt (3) for coupling torque | 10.3 to 12.4 N⋅m | p. 531 |
| Fuel filter replacement procedure | 1/3 to 2/3 of a turn | p. 815 |
| Engine Rated Output | 40.5 kW / 2100 min-1 | p. 7 |
| Swing Speed | 11.3 min-1 | p. 7 |
