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Hitachi ZX670LC-5G User Manual

Hitachi ZX670LC-5G
51 pages
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WJBF90-EN-00
ZX670
-5G
HYDRAULIC EXCAVATOR WORKSHOP MANUAL
PRINTED IN JAPAN (K) 2013, 04
URL:http://www.hitachi-c-m.com
Service Manual consists of the following separate Part No.
Technical Manual (Operational Principle) : Vol. No.TOJBF90-EN
Technical Manual (Troubleshooting) : Vol. No.TTJBF90-EN
Workshop Manual : Vol. No.WJBF90-EN
WJBF90-EN-00
PART NO.
Workshop Manual
ZX670LC
-5G
Hydraulic Excavator

Table of Contents

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Hitachi ZX670LC-5G Specifications

General IconGeneral
BrandHitachi
ModelZX670LC-5G
CategoryExcavators
LanguageEnglish

Summary

Introduction

To The Reader

Guidance for experienced technicians on maintaining and repairing the machine, emphasizing thorough reading.

Additional References

Lists other relevant materials such as operator's manual and parts catalog for comprehensive understanding.

Manual Composition

Explains the structure and content of the Technical, Workshop, and Engine manuals.

Page Number

Describes the page numbering system, detailing section, group, and sequence numbers.

Safety Alert Symbol and Headline Notations

Explains safety alert symbols and signal words (DANGER, WARNING, CAUTION, IMPORTANT, NOTE) used in the manual.

Units Used

Details the use of SI units and provides a table for converting to other system units.

Symbol and Abbreviation

Symbol / Abbreviation

Lists and explains symbols/abbreviations like TO, TT, W/M, MC, EC, VGS, GSM, GPS, CAN, A/C, etc.

Symbol / Name

Lists and explains technical symbols/abbreviations related to engine emission control systems.

Safety

Recognize Safety Information

Identifies and explains the safety alert symbols used on the machine and in the manual.

Understand Signal Words

Explains the meaning of hazard signal words: DANGER, WARNING, CAUTION, and IMPORTANT.

Follow Safety Instructions

Provides general guidelines for safe operation, maintenance, and adherence to safety signs.

Prepare for Emergencies

Guidelines for preparedness in case of fire or accidents, including first aid and emergency contacts.

Wear Protective Clothing

Lists necessary personal protective equipment (PPE) and clothing for safe operation.

Protect Against Noise

Emphasizes the importance of hearing protection due to prolonged exposure to loud noise.

Inspect Machine

Details the importance of daily walk-around inspections to prevent personal injury.

General Precautions for Cab

Safety measures to maintain a clean and safe environment within the operator's cab.

Use Handholds and Steps

Safe practices for mounting and dismounting the machine, emphasizing three-point contact.

Adjust the Operator's Seat

Importance of proper seat adjustment for operator comfort, fatigue prevention, and control operation.

Ensure Safety Before Rising from or Leaving Operator's Seat

Procedures to follow before exiting the operator's seat, including lowering attachments and locking controls.

Fasten Your Seat Belt

Highlights the critical importance of wearing the seat belt to prevent injury or ejection during overturns.

Move and Operate Machine Safely

General safety rules for moving and operating the excavator, including awareness of bystanders.

Operate Only from Operator's Seat

Rules for safe engine starting, prohibiting starting while standing on the ground or by shorting terminals.

Jump Starting

Safety precautions and procedures for jump starting the engine to prevent battery explosions or runaway machines.

Keep Riders off Machine

Warning against carrying passengers on the machine due to injury risks and obstructed view.

Precautions for Operations

General safety measures to be taken before and during machine operations, including site investigation.

Investigate Job Site Beforehand

Importance of assessing job site conditions (ground, excavations, slopes) to prevent tipping or collapse.

Install OPG Guard

Information on equipping the machine with an OPG guard for protection against falling objects.

Confirm Direction of Machine to Be Driven

Procedures to verify the machine's orientation and travel pedal/lever direction before driving.

Drive Machine Safely

Essential safety tips for operating the machine while driving, including slope operation and obstruction avoidance.

Avoid Injury from Rollaway Accidents

Precautions to prevent machine rollaways when parking or stopping on grades.

Avoid Injury from Back-Over and Swing Accidents

Safety measures to prevent accidents involving bystanders during backing or swinging operations.

Never Position Bucket Over Anyone

Warning against lifting, moving, or swinging the bucket over any person or vehicle cab.

Avoid Tipping

Critical instructions to prevent machine tipping, emphasizing seat belt use and careful grade operation.

Dig with Caution

Safety measures to prevent explosions and fires when digging near underground cables or gas lines.

Avoid Power Lines

Safety procedures for maintaining a safe distance from electric power lines during operation.

Handle Fluids Safely-Avoid Fires

Precautions to prevent fires when handling flammable fluids like fuel and lubricants.

Practice Safe Maintenance

General safety procedures and precautions to follow before, during, and after maintenance work.

Support Machine Properly

Methods for safely supporting the machine or its components during service to prevent collapse.

Stay Clear of Moving Parts

Warning to avoid entanglement with rotating machine parts and to ensure clothing and hair are clear.

Avoid High-Pressure Fluids

Hazards and precautions related to high-pressure fluid injection into skin or eyes.

Prevent Fires

Checks and measures to prevent fires, focusing on oil leaks, short circuits, and electrical connections.

Evacuating in Case of Fire

Procedures for safely evacuating the machine in the event of a fire.

Precautions for Handling Accumulator and Gas Damper

Safety measures and warnings for handling accumulators and gas dampers due to high-pressure gas.

Beware of Asbestos and Silicon Dust and Other Contamination

Health risks associated with inhaling dust and contamination, and precautions for working in affected sites.

Prevent Battery Explosions

Safety precautions to prevent battery explosions, including managing sparks and electrolyte handling.

Handle Chemical Products Safely

Guidelines for safely handling hazardous chemicals, emphasizing the use of Material Safety Data Sheets (MSDS).

Never Ride Attachment

Strict warning against allowing anyone to ride on machine attachments or loads.

Precaution for Communication Terminal Equipment

Information regarding potential interference between the machine's communication terminal and medical devices.

Before Returning The Machine To The Customer

Final checks to confirm machine operability and safety system functionality after maintenance.

SECTION 1 GENERAL INFORMATION

Group 1 Precautions for Disassembling and Assembling

Safety precautions required before and during disassembly and assembly procedures.

Group 2 Tightening Torque

Specifies the correct tightening torque values for various fasteners and components.

Group 5 Pressure Release Procedure

Details the steps for safely releasing pressure from hydraulic or other systems.

SECTION 2 MAINTENANCE STANDARD

Group 1 Upperstructure

Provides the maintenance standards and specifications for the machine's upperstructure.

Group 2 Undercarriage

Outlines the maintenance standards and specifications for the machine's undercarriage.

SECTION 3 UPPERSTRUCTURE

Group 4 Engine

Information on the maintenance and service procedures for the engine.

Group 5 Radiator Assembly

Details the maintenance and service procedures for the radiator and cooling system.

SECTION 4 UNDERCARRIAGE

Group 4 Track Adjuster

Provides service information and procedures for the track adjuster system.

SECTION 5 ATTACHMENT

Group 1 Front Attachment

Details the maintenance and service procedures for the machine's front attachment.

SECTION 6 ENGINE

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