Table of Contents
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URL:http://www.hitachi-c-m.com
PRINTED IN JAPAN (K) 2016, 04
WJAG50-EN-00
PART NO.
Workshop Manual
ZX
470
-6
470LC
-6
490H
-6
490LCH
-6
490R
-6
490LCR
-6
530LCH
-6
Hydraulic Excavator
Service Manual consists of the following separate Part No.
Technical Manual (Operational Principle)
Technical Manual (Troubleshooting)
Workshop Manual
Engine Manual
: Vol. No.TOJAG50-EN
: Vol. No.TTJAG50-EN
: Vol. No.WJAG50-EN
: Vol. No.ETJAG50-EN, EWJAG50-EN
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Table of Contents
Related Manuals for Hitachi ZX 490LCH-6
Summarization of Contents
Introduction to the Hitachi Workshop Manual
To The Reader
Information for technicians on how to use the manual and contact Hitachi.
Additional References
List of other related materials for machine information and training.
Manual Composition
Details on the contents of the Technical, Workshop, and Engine manuals.
Page Number
Explanation of the structure and meaning of page numbers.
Trademark
Information on registered trademarks used in the manual.
Safety Alert Symbol and Headline Notations
Explanation of safety symbols and signal words used in the manual for hazard communication.
Units Used
Table showing conversions between SI units and other common units for reference.
Safety Guidelines for Hitachi Excavators
Recognize Safety Information
Identification and use of safety alert symbols and their meanings.
Understand Signal Words
Explanation of signal words like DANGER, WARNING, CAUTION, IMPORTANT, NOTE.
Follow Safety Instructions
Guidelines for adhering to safety signs, maintenance, and authorized modifications.
Prepare for Emergencies
Recommendations for fire safety, first aid, and emergency contact information.
Wear Protective Clothing
Guidance on appropriate safety clothing and equipment for job tasks.
Protect Against Noise
Importance of hearing protection against loud noises.
Inspect Machine
Daily inspection procedures for machine safety and operability.
General Precautions for the Cab
Safety measures and precautions to be taken inside the operator's cab.
Use Handholds and Steps
Safe practices for mounting and dismounting the machine using handholds and steps.
Adjust the Operator's Seat
Proper adjustment of the operator's seat for comfort and safe control operation.
Ensure Safety Before Rising from or Leaving Operator's Seat
Procedures to ensure safety before leaving the operator's seat or the machine.
Fasten Your Seat Belt
Importance and proper use of the seat belt to prevent injury in case of overturn.
Move and Operate Machine Safely
Safety precautions for moving and operating the machine, including bystander awareness.
Operate Only from Operator's Seat
Procedures and warnings related to starting and operating the machine from the seat.
Jump Starting
Safety guidelines and warnings for jump-starting the machine's engine.
Keep Riders off Machine
Risks associated with carrying passengers and the importance of operator-only operation.
Precautions for Operations
General safety measures to be taken before and during machine operations.
Investigate Job Site Beforehand
Importance of assessing job site conditions to prevent accidents like tipping or collapse.
Install OPG Guard
Guidelines for installing Operator Protective Guard (OPG) for falling object protection.
Restriction of Attachment Installation
Warning against installing attachments exceeding the machine's weight specifications.
Provide Signals for Jobs Involving Multiple Machines
Procedures for using signals and signal persons in multi-machine operations.
Confirm Direction of Machine to Be Driven
Ensuring correct understanding of travel direction controls before driving.
Drive Machine Safely
Safe practices for driving the machine, including on slopes and around obstructions.
Avoid Injury from Rollaway Accidents
Preventive measures to avoid machine rollaways when parking or stopping.
Avoid Injury from Back-Over and Swing Accidents
Safety precautions to prevent accidents during backing up and swinging operations.
Keep People Clear from Working Area
Measures to ensure bystanders are kept away from the machine's operating zone.
Never Position the Bucket Over Anyone
Warning against lifting or swinging the bucket over people or vehicle cabs.
Avoid Undercutting
Precautions against undercutting excavations to prevent collapse and tipping.
Avoid Tipping
Guidelines to prevent machine tipping, especially on grades or rough terrain.
Never Undercut a High Bank
Dangers of undercutting high banks and potential for landslides.
Dig with Caution
Safety measures for digging, including checking for underground utilities.
Operate with Caution
Precautions for operating the machine near overhead obstacles.
Avoid Power Lines
Maintaining safe distances from overhead electric power lines.
Precautions for Lightning
Safety procedures to follow during lightning storms while operating the machine.
Object Handling
Safety guidelines for lifting and handling loads using the machine.
Protect Against Flying Debris
Measures to protect against injury from flying debris during operations.
Park Machine Safely
Steps to follow for safely parking the machine to prevent accidents.
Handle Fluids Safely-Avoid Fires
Precautions for handling flammable fluids like fuel to prevent fires.
Transport Safely
Safety procedures for loading and unloading the machine onto trucks or trailers.
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