This workshop service repair manual covers the Hitachi Hydraulic Excavator models ZX70-3, ZX70LC-3, ZX70LCN-3, ZX75US-3, and ZX85US-3. These excavators are equipped with a 2.2L 4-cylinder, 4-cycle, water-cooled, turbocharged Isuzu 4LE2X diesel engine, designed for robust performance and reliability in demanding construction environments. The manual provides detailed information to ensure these machines operate at peak efficiency.
The purpose of this manual is to serve as a comprehensive guide for maintenance, repair, and troubleshooting of the specified Hitachi excavator models. It includes essential sections on general information, safety precautions, detailed maintenance procedures, and specific system overviews such as the engine, hydraulic systems, and undercarriage. With step-by-step instructions and clear diagrams, this resource is invaluable for both experienced technicians and owner-operators seeking to maintain their equipment effectively.
HITACHI ZX 70 75 85 HYDRAULIC EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL
APPLICABLE MODEL:
HITACHI HYDRAULIC EXCAVATOR ZX70-3
HITACHI HYDRAULIC EXCAVATOR ZX70LC-3
HITACHI HYDRAULIC EXCAVATOR ZX70LCN-3
HITACHI HYDRAULIC EXCAVATOR ZX75US-3
HITACHI HYDRAULIC EXCAVATOR ZX85US-3
ENGINE COVERED:
2.2L 4-CYLINDER, 4-CYCLE, WATER-COOLED, TURBOCHARGED, ISUZU 4LE2X DIESEL ENGINE
CONTENTS:
GENERAL INFORMATION
TIGHTENING TORQUE
PRECAUTION & SAFETY
MAINTENANCE
UPPERSTRUCTURE
CAB & FRAME SYSTEM
ENGINE SYSTEM
ENGINE MECHANICAL
CHARGING SYSTEM
STARTING SYSTEM
PRE-HEATING SYSTEM
COOLING SYSTEM
FUEL SYSTEM
ENGINE ACCESSORIES
INTAKE SYSTEM
ENGINE ELECTRICAL
EXHAUST SYSTEM
TURBOCHARGER SYSTEM
ENGINE DIAGNOSTIC
RADIATOR ASSEMBLY
HYDRAULIC OIL TANK
FUEL TANK
PUMP DEVICE
CONTROL VALVE
SWING DEVICE
PILOT VALVE
SOLENOID VALVE
SIGNAL CONTROL VALVE
MUFFLER FILTER
UNDERCARRIAGE
SWING BEARING
TRAVEL DEVICE
CENTER JOINT
TRACK ADJUSTER
UPPER &LOWER ROLLERS
TRACK SYSTEM
FRONT ATTACHMENT
CYLINDER SYSTEM
CIRCUIT DIAGRAM
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
HITACHI ZX 70 75 85 HYDRAULIC EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL
APPLICABLE MODEL:
HITACHI HYDRAULIC EXCAVATOR ZX70-3
HITACHI HYDRAULIC EXCAVATOR ZX70LC-3
HITACHI HYDRAULIC EXCAVATOR ZX70LCN-3
HITACHI HYDRAULIC EXCAVATOR ZX75US-3
HITACHI HYDRAULIC EXCAVATOR ZX85US-3
ENGINE COVERED:
2.2L 4-CYLINDER, 4-CYCLE, WATER-COOLED, TURBOCHARGED, ISUZU 4LE2X DIESEL ENGINE
CONTENTS:
GENERAL INFORMATION
TIGHTENING TORQUE
PRECAUTION & SAFETY
MAINTENANCE
UPPERSTRUCTURE
CAB & FRAME SYSTEM
ENGINE SYSTEM
ENGINE MECHANICAL
CHARGING SYSTEM
STARTING SYSTEM
PRE-HEATING SYSTEM
COOLING SYSTEM
FUEL SYSTEM
ENGINE ACCESSORIES
INTAKE SYSTEM
ENGINE ELECTRICAL
EXHAUST SYSTEM
TURBOCHARGER SYSTEM
ENGINE DIAGNOSTIC
RADIATOR ASSEMBLY
HYDRAULIC OIL TANK
FUEL TANK
PUMP DEVICE
CONTROL VALVE
SWING DEVICE
PILOT VALVE
SOLENOID VALVE
SIGNAL CONTROL VALVE
MUFFLER FILTER
UNDERCARRIAGE
SWING BEARING
TRAVEL DEVICE
CENTER JOINT
TRACK ADJUSTER
UPPER &LOWER ROLLERS
TRACK SYSTEM
FRONT ATTACHMENT
CYLINDER SYSTEM
CIRCUIT DIAGRAM
THIS IS A VERY COMPREHENSIVE AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.
