## Hitachi ZX 140W-3 Excavator: A Powerhouse of Digging Efficiency
The Hitachi ZX 140W-3 excavator embodies the pinnacle of precision and performance, engineered to tackle demanding excavation projects with unwavering efficiency. This advanced machine boasts an exceptional combination of power, stability, and versatility, making it an indispensable asset for any construction site.
**Unleashing Unstoppable Power:**
- **Tier III-compliant Isuzu A-6HK1X 6-cylinder engine:** Delivers an impressive 142 horsepower for effortless excavation and hauling, maximizing productivity. - **Advanced HIOS IV hydraulic system:** Optimizes hydraulic pressure and flow for smooth, responsive operation, ensuring precise control and increased digging efficiency. - **Three operating modes (Power, Standard, Economy):** Tailor performance to specific job demands, reducing fuel consumption without compromising productivity.
**Exceptional Stability and Control:**
- **Robust undercarriage with "X" frame structure:** Provides exceptional stability on uneven terrain, ensuring operator safety and optimal machine performance. - **Wide track gauge:** Distributes load evenly, enhancing stability and reducing ground pressure for minimal soil disturbance. - **Automatic swing brake:** Prevents uncontrolled swinging, ensuring operator safety and minimizing machine wear.
**Precision Digging and Comfort:**
- **Advanced boom and arm design:** Maximizes digging reach, breakout force, and precision, enabling operators to work efficiently in confined spaces. - **Enhanced hydraulic control system:** Provides smooth, precise bucket and boom movements for unmatched control and accuracy. - **Spacious and ergonomic cab:** Offers unparalleled operator comfort with panoramic visibility, adjustable controls, and a low-noise environment.
**Versatile Performance for Diverse Applications:**
- **Wide range of attachments:** Accommodates various attachments such as breakers, compactors, and grapples, expanding the machine's versatility for different tasks. - **Excellent maneuverability:** Compact size and tight turning radius enable easy operation in confined spaces, enhancing jobsite efficiency. - **Durable components:** Designed with high-quality materials and precision engineering, ensuring longevity and reliability in demanding operating conditions.
The Hitachi ZX 140W-3 excavator stands as a testament to engineering excellence, offering a perfect balance of power, stability, and precision. Its superior features empower operators to achieve exceptional excavation results with confidence and efficiency, making it the ultimate choice for demanding construction projects.

HITACHI ZX 140W-3 HYDRAULIC EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL



ENGINE COVERED:
3.0L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, ISUZU 4JJ1 DIESEL ENGINE


CONTENTS:
GENERAL INFORMATION
PRECAUTIONS FOR DISASSEMBLING/ASSEMBLING
TIGHTENING TORQUES
ENGINE MECHANICAL
COOLING SYSTEM
ENGINE FUEL SYSTEM
ENGINE ELECTRICAL
ENGINE CONTROL SYSTEM
AIR INTAKE SYSTEM
EXHAUST SYSTEM
ENGINE SPEED CONTROL SYSTEM
PAINTING SYSTEM
BLEED AIR FROM HYDRAULIC OIL TANK
CAB SYSTEM
COUNTERWEIGHT
CENTER HINGE
HOOD SYSTEM
HYDRAULIC OIL TANK
PUMP DEVICE
CONTROL SYSTEM
ECM SYSTEM
HYDRAULIC SYSTEM
ELECTRICAL SYSTEM
CONTROL VALVE
PILOT VALVE SYSTEM
PILOT SHUT-OFF VALVE
HYDRAULIC FAN PUMP AND MOTOR
TIRE SYSTEM
DRIVE UNIT SYSTEM
AXLE SYSTEM
PROPELLER SHAFT
BRAKE VALVE SYSTEM
CHARGING BLOCK SYSTEM
STEERING PILOT VALVE
STEERING VALVE SYSTEM
STEERING CYLINDER
FRONT ATTACHMENT
CYLINDER SYSTEM
TROUBLESHOOTING
HYDRAULIC DIAGRAMS
ELECTRICAL DIAGRAMS


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.