This manual is a complete factory service repair manual for Hitachi ZX26U-5A Hydraulic Excavators. This manual consists of three portions: Hitachi ZX26U-5A Technical Manual (Operational Principle), the Technical Manual (Troubleshooting) and Hitachi ZX26U-5A Workshop Manual. Information included in the Technical Manual(Operational Principle): technical information needed for redeliver and delivery, operation and activation of all devices and systems. Information included in the Technical Manual(Troubleshooting): technical information needed for operational performance tests, and troubleshooting procedures and Electrical Circuit Diagram. Information included in the Workshop Manual: technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal/installation and assemble/disassemble procedures. Service Repair Manual Covers: WORKSHOP MANUAL SECTION 1 GENERAL Group 1 Precautions for Disassembling and Assembling Group 2 Tightening Group 3 Painting Group 4 Bleeding Air Group 5 Pressure Release Procedure Group 6 Preparation Group 7 Connect The Hose SECTION 2 MAINTENANCE STANDARD Group 1 Upperstructure Group 2 Undercarrlage Group 3 Front Attachment SECTION 3 UPPERSTRUCTURE Group 1 Canopy and Cab Group 2 Counterweight Group 3 Main Frame Group 4 Pump Device Group 5 Control Valve Group 6 Swing Device Group 7 Pilot Valve Group 8 Solenoid Valve SECTION 4 UNDERCARRIAGE Group 1 Swing Bearing Group 2 Travel Device Group 3 Center Joint Group 4 Track Adjuster Group 5 Front Idler Group 6 Upper and Lower Roller Group 7 Track Group 8 Blade Cylinder Group 9 Side Frame Extend/Retract Cylinder SECTION 5 FRONT ATTACHMENT Group 1 Front Attachment Group 2 Cylinder TECHNICAL MANUAL SECTION 1 GENERAL Group 1 Specification Group 2 Component Layout Group 3 Component Specifications SECTION 2 SYSTEM Group 1 Hydraulic System Group 2 Electrical System SECTION 3 COMPONENT OPERATION Group 1 Pump Device Group 2 Swing Device Group 3 Control Valve Group 4 Pilot Valve Group 5 Travel Device Group 6 Others (Upperstructure) Group 7 Others (Undercarriage) SECTION 4 OPERATIONAL PERFORMANCE TEST Group 1 Introduction Group 2 Standard Group 3 Engine Test Group 4 Machine Performance Test Group 5 Component Test Group 6 Adjustment SECTION 5 TROUBLESHOOTING Group 1 Diagnosing Procedure Group 2 Troubleshooting B Group 3 Troubleshooting C Hitachi ZX26U-5A ELECTRICAL CIRCUIT DIAGRAM Hitachi ZX26U-5A HYDRAULIC CIRCUIT DIAGRAM ================================================== High Quality PDF Manual,All pages are printable. Instant Download No Shipping Cost No Need to Wait For A CD-ROM File Format: PDF Language: English Compatible: All Versions of Windows & Mac Requirements: Adobe PDF Reader Thanks for visiting.