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Hitachi ZW 120-6 User Manual

Hitachi ZW 120-6
364 pages
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120
-6
ENMNSC-NA1-2ZW120-6 WHEEL LOADER OPERATOR'S MANUAL
PRINTED IN JAPAN (E) 2018, 07
URL:http://www.hitachi-c-m.com
ENMNSC-NA1-2
PART NO.
Wheel Loader
Operator's Manual
Serial No. 005201 and up
This book is printed on recycled paper.

Table of Contents

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Hitachi ZW 120-6 Specifications

General IconGeneral
BrandHitachi
ModelZW 120-6
CategoryFront End Loaders
LanguageEnglish

Summary

SAFETY

Follow Safety Instructions

Read and follow all safety signs and messages in the manual. Ensure signs are maintained and replaced.

Prepare for Emergencies

Be prepared for fires or accidents. Keep first aid kit and fire extinguisher ready.

Wear Protective Clothing

Wear close-fitting clothing and safety equipment appropriate to the job. Avoid loose items.

General Precautions for Cab

Keep cab clean, avoid storing transparent bottles, refrain from radio/headphone use, keep flammables away.

Fasten Your Seat Belt

Always use the seat belt securely fastened when operating. Recommended replacement every four years.

Move and Operate Machine Safely

Take care not to run over bystanders. Use travel alarm and horn. Use signal person in congested areas.

Investigate Job Site Beforehand

Investigate job site configuration and ground conditions to prevent falling or collapsing.

Avoid Tipping

Securely hold steering wheel if tipping is predicted. Fasten seat belt. Be careful on grades.

Handle Fluids Safely−Avoid Fires

Handle fuel with care as it is highly flammable. Store flammable fluids away from fire hazards.

Practice Safe Maintenance

Understand procedures, keep area clean, never lubricate while moving. Follow pre-service steps.

Precautions for DEF/AdBlue®

DEF/AdBlue® breaks down into ammonia gas at high temps. Ammonia gas is toxic and irritating.

Prevent Battery Explosions

Keep sparks and flames away. Never charge a frozen battery. Handle electrolyte with care.

Precautions for Communication Terminal Equipment

Machine has communication terminal emitting electrical waves. Be aware of medical device interference.

SAFETY SIGNS

General Safety Signs

Illustrates safety signs and their locations on the machine. Read and understand their meanings.

COMPONENTS NAME

Components Name

Lists and illustrates major components of the machine with numbered references.

GETTING ON/OFF THE MACHINE

Getting ON/OFF the Machine

Provides instructions and warnings for safely entering and exiting the machine.

OPERATOR'S STATION

About Aftertreatment Device

Explains the function of the aftertreatment device and precautions for its operation.

Cab Features

Details the various features and components within the operator's cab.

Front Console

Identifies and describes the controls and indicators on the front console.

Right Console

Identifies and describes the controls on the right console, including joystick.

Monitor Panel

Details the indicators, gauges, and selectors on the main monitor panel.

Service Indicator

Explains the function of the service indicator light and alarm buzzer.

Parking Brake Indicator (Red)

Describes the parking brake indicator and its function.

Brake Oil Level Indicator (Red)

Explains the brake oil level indicator and the warning for low oil level.

HST Warning Indicator (Red)

Describes the HST warning indicator for abnormalities in the HST system.

Engine Trouble Indicator (Red)

Explains the engine trouble indicator for abnormalities in the engine.

Overheat Indicator (Red)

Describes the overheat indicator for abnormal engine coolant temperature.

Aftertreatment Device Warning Indicator

Indicates the need for aftertreatment device regeneration.

Coolant Temperature Gauge

Explains the engine coolant temperature gauge and its readings.

Fuel Gauge

Describes the fuel gauge and when to refuel.

Turn Signal Indicator (Green)

Indicates when turn signals are flashing.

High Beam Indicator (Blue)

Indicates when the high beam headlights are used.

Work Light Indicator (Yellow)

Indicates when the work lights are turned ON.

Control Lever Lock Indicator (Red)

Indicates when the control lever lock switch is in ON position.

Maintenance Indicator (Yellow)

Indicates approaching maintenance times for various items.

Monitor Display

Details the main monitor display elements and selectors.

Forward/Reverse and Shift Position Indicator

Displays machine driving status: selected FNR lever and shift positions.

Resetting of Oil Change and Filter Replacement Intervals

Procedures for resetting oil change and filter replacement intervals.

Control Lever

Explains the operation of the control lever for lift arm and bucket.

Control Lever Lock Switch

Prevents unexpected machine operation by locking control levers.

Power Mode Switch

Switches between OFF and ON power modes for different work conditions.

Aftertreatment Device Regeneration Switch

Switch for performing manual regeneration of the aftertreatment device.

Manual Regeneration Procedure

Step-by-step guide for performing manual regeneration of the aftertreatment device.

Ride Control Switch (Optional)

Dampens vertical vibration of front attachment for comfortable ride.

Cigar Lighter

Instructions for using the cigar lighter and its port as an external power source.

Auto Air Conditioner

Details the features of the automatic air conditioner.

Adjusting Operator's Seat (Air Suspension Type Seat) (Sears)

Instructions for adjusting the operator's seat for comfort and proper posture.

Fuse Box

Location and function of the fuse boxes and their components.

ROPS Cab

Information about the ROPS cab, speakers, front room light, and sun visor.

Battery Disconnect Switch

Instructions for using the battery disconnect switch for electrical system isolation.

Articulation Lock Bar

Locks the front and rear frames to prevent articulation during service or transport.

Towing Pin

Location and use of the towing pin for machine transport.

BREAK-IN

Break-in Operation for New Machine

Instructions for proper break-in operation to ensure machine life and performance.

OPERATING ENGINE

Inspect Machine Daily Before Starting

Daily checks before starting the engine, covering various systems.

Check Before Starting

Pre-start checks including battery, levers, parking brake, and control lever.

Starting Engine

Step-by-step procedure for starting the engine safely.

Warming Up Operation

Procedure for warming up the engine and hydraulic components.

Stopping Engine

Procedure for safely stopping the engine, including cool-down for turbocharged engines.

DRIVING MACHINE

Driving the Machine

Guidelines for safe and efficient machine operation.

Starting to Move

Procedure and warnings for starting to move the machine.

Steering Wheel

Warnings and important notes regarding steering wheel operation.

Parking

Procedure for safely parking the machine.

Precautions for Driving on Slopes

Safety measures and procedures for operating on slopes.

Precautions to be Taken if Machine Failure Occurs

Actions to take when a machine failure occurs during driving.

OPERATING MACHINE

Control Lever

Explains the operation of the control lever for lift arm and bucket.

Control Lever Lock Switch

Prevents unexpected machine operation by locking control levers.

Ride Control Switch (Optional)

Dampens vertical vibration of front attachment for comfortable ride.

Excavation

Procedures and precautions for loading accumulated soil.

Loading

Guidelines for maintaining clean surfaces and carrying loads safely.

Loader and Dump Truck Combination Method

Describes V-Shape and I-Shape loading methods for dump trucks.

Dozing

Working method using bucket as bulldozer blade for reclaiming land or dumping.

Scooping

Precautions for piling material on soft ground to avoid tipping.

Removing Snow

Precautions and methods for removing snow.

Precautions for After Operations

Steps to take after daily operations, including refueling and cleaning.

TRANSPORTING

Transporting by Road

Understand and follow local regulations for transporting on public roads.

Loading / Unloading on Trailer

Safe procedures for loading and unloading the machine onto a trailer.

Fastening Machine for Transporting

Securely fasten the machine frame to the deck with chains and cables.

Precautions for Towing

Warnings and important points to consider when towing the machine.

Lifting Machine

Warnings and procedures for safely lifting the machine.

MAINTENANCE

Correct Maintenance and Inspection Procedures

Learn to service the machine correctly by following procedures.

Inspection and Maintenance Table

Lists maintenance items, intervals, and corresponding pages.

A. Greasing

Detailed instructions for greasing various points on the machine.

B. Engine

Procedures for checking and changing engine oil and filters.

C. Power Train

Procedures for checking and changing transmission and axle oil.

D. Hydraulic System

Inspection and maintenance procedures for hydraulic components.

E. Fuel System

Procedures for checking fuel level and refueling.

F. Air Cleaner

Instructions for inspecting, cleaning, and replacing the air cleaner element.

G. Cooling System

Information on coolant, its mixture ratio, and precautions.

H. Electrical System

Maintenance procedures for batteries and other electrical components.

I. Brake System

Procedures for checking brake oil level, force, and disks.

J. Tire

Procedures for checking tire pressure, damage, bolt torque, and replacement.

K. Air Conditioner

Procedures for cleaning/replacing circulation and fresh air filters.

L. Miscellaneous

Checks for cutting edge, seat belt, ROPS cab bolts, and washer fluid.

M. Aftertreatment Device

Procedures for checking and cleaning the aftertreatment device.

N. Urea SCR System

Information and precautions for using and refilling DEF/AdBlue®.

TROUBLESHOOTING

Engine Auxiliaries

Troubleshooting for common engine auxiliary symptoms and solutions.

Engine does not Start

Troubleshooting steps when the engine fails to start.

Hydraulic System

Troubleshooting for hydraulic system symptoms like inoperable functions or overheating.

Drive Function

Troubleshooting for drive system issues including steering and accelerator pedal.

Steering System

Troubleshooting for heavy steering or unexpected steering direction.

Parking Brake

Troubleshooting for dragging or non-functional parking brake.

Service Brake

Troubleshooting for service brake issues like non-working or dragging.

Transmission

Troubleshooting for noisy transmission or oil overheating.

SPECIFICATIONS

Specifications

Provides detailed technical specifications for the machine.

OPTIONAL ATTACHMENTS

HYDRAULIC TYPE QUICK COUPLER OPERATION

Instructions for operating the hydraulic quick coupler.

Removal

Procedure for removing the quick coupler and work tools.

Installation

Procedure for installing the quick coupler and work tools.

Disconnecting/connecting hydraulic hose

Procedures for connecting and disconnecting hydraulic hoses.

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