SECTION 1 GENERAL SECTION AND GROUP CONTENTS Group 1 Specification Group 2 Component Layout Group 3 Component Specifications SECTION 2 SYSTEM Group 1 Control System Group 2 Control System Group 3 ECM System Group 4 Hydraulic System Group 5 Electrical System SECTION 3 COMPONENT OPERATION TECHNICAL MANUAL (Operational Principle) Group 1 Pump Device Group 2 Swing Device Group 3 Control Valve Group 4 Pilot Valve Group 5 Travel Device Group 6 Signal Control Valve Group 7 Others (Upperstructure) Group 8 Others (Undercarriage) TECHNICAL MANUAL (Troubleshooting) SECTION 4 OPERATIONAL PER- FORMANCE TEST Group 1 Introduction Group 2 Standard Group 3 Engine Test Group 4 Excavator Test Group 5 Component Test SECTION 5 TROUBLESHOOTING All information, illustrations and speci- fications in this manual are based on the latest product information available at the time of publication.
The right is reserved to make changes at any time without notice. Group 1 Diagnosing Procedure Group 2 Monitor Unit Group 3 Dr. ZX Group 4 e-Shovel Group 5 Component Layout Group 6 Troubleshooting A Group 7 Troubleshooting B Group 8 Electrical System Inspection Hitachi Construction Machinery Co., Ltd. COPYRIGHT(C)2006 Tokyo, Japan All rights reserved