Download Hitachi Zaxis ZX120-3 to 350LC-3 Excavator Operator Manual EM1U1-NA3-2 PDF (English)

Get the Hitachi Zaxis ZX120-3 to 350LC-3 Excavator Operator Manual EM1U1-NA3-2 PDF for complete operation, safety, maintenance, and service guidance. This official-style operator manual provides detailed instructions for Hitachi Zaxis excavator models, helping operators understand machine controls, operating procedures, safety precautions, and daily maintenance requirements. Ideal for owners, technicians, and equipment professionals, this PDF manual supports efficient excavator operation and helps maintain optimal performance, reliability, and productivity of Hitachi Zaxis ZX120-3, ZX130-3, ZX160LC-3, ZX180LC-3, ZX210LC-3, ZX250LC-3, ZX270LC-3, and ZX350LC-3 models.

MODEL COVERED:
Zaxis ZX120-3 to 350LC-3 Excavator

MANUAL CONTENTS:
EM1U1-NA3-2
INTRODUCTION
INDEX
MACHINE NUMBERS
CONTENTS
SAFETY
Recognize Safety Information
Understand Signal Words
Follow Safety Instructions
Prepare for Emergencies
Wear Protective Clothing
Protect Against Noise
Inspect Machine
General Precautions for Cab
Use Handholds and Steps
Adjust the Operator’s Seat
Ensure Safety Before Rising from or Leaving Operator’s Seat
Fasten Your Seat Belt
Move and Operate Machine Safely
Operate Only from Operator’s Seat
Jump Starting
Keep Riders Off Machine
Precautions for Operations
Investigate Job Site Beforehand
Equipment of Head Guard, Rops, Fops
Provide Signals for Jobs Involving Multiple Numbers of Machines
Confirm Direction of Machine to Be Driven
Drive Machine Safely
Avoid Injury from Rollaway Accidents
Avoid Injury from Back-over and Swing Accidents
Keep Person Clear from Working Area
Never Position Bucket Over Anyone
Avoid Undercutting
Avoid Tipping
Never Undercut a High Bank
Dig with Caution
Operate with Caution
Avoid Power Lines
Precautions for Lightning
Object Handling
Protect Against Flying Debris
Park Machine Safely
Handle Fluids Safely−avoid Fires
Transport Safely
Practice Safe Maintenance
Warn Others of Service Work
Support Machine Properly
Stay Clear of Moving Parts
Prevent Parts from Flying
Store Attachments Safely
Prevent Burns
Replace Rubber Hoses Periodically
Avoid High-pressure Fluids
Prevent Fires
Evacuating in Case of Fire
Beware of Exhaust Fumes
Precautions for Welding and Grinding
Avoid Heating Near Pressurized Fluid Lines
Avoid Applying Heat to Lines Containing Flammable Fluids
Remove Paint Before Welding or Heating
Beware of Asbestos Dust
Prevent Battery Explosions
Service Air Conditioning System Safely
Handle Chemical Products Safely
Dispose of Waste Properly
SAFETY SIGNS
COMPONENTS NAME
OPERATOR’S STATION
Cab Features
Multi Function Monitor
Outline
Menu Screen (23)
Hour Meter
Fuel Gauge
Clock
Menu Key
Optional Function Key
Return to Basic Screen Key
Alarm Light
Optional Function Display
Coolant Temperature Gauge
Operating Status Icon Display
Alarm Occurrence Screen
Contents of Alarms
Clock Setting
Attachment Selection (Only Machines Equipped with Optional Parts)
Pump 2 Flow Rate Adjustment (Only Machines Equipped with Optional Parts)
Displaying Operating Conditions
Fuel Rate Display/No Display.
Maintenance Settings
Language Settings
Switch Panel
Engine Control Dial
Auto-idle Switch
Power Mode Switch
Travel Mode Switch
Work Light Switch
Wiper/Washer Switch
Switch Panel
Key Switch
Power Boost Switch
Horn Switch
Cigar Lighter
Cab Light
Installing Fire Extinguisher (Optional)
Pilot Control Shut-off Lever
Engine Stop Switch
Fuse Box
Auto Air Conditioner
Cab Heater Operation
Cooling Operation
Defroster Operation
Tips for Optimal Air Conditioner Usage
Cab Heater (Optional)
Cab Heater Operation
Defroster Operation.
AM/FM Radio Operation
Digital Clock Setting Procedure
Cab Door Release Lever.
Opening Upper Front Window
Closing Upper Front Window
Removing and Storing Lower Front Window
Opening Side Windows
Opening/Closing Overhead Window
Emergency Exit
Adjusting the Seat
Adjusting the Air-suspension Seat (Optional)
Adjusting Console Height
Seat Belt
BREAK-IN
Observe Engine Operation Closely
Every 8 Hours or Daily
After the First 50 Hours
After the First 100 Hours.
OPERATING THE ENGINE
Inspect Machine Daily Before Starting
Before Starting Engine
Starting the Engine in Ordinary Temperature
Starting in Cold Weather
Check Instruments After Starting
Using Booster Batteries
Stopping the Engine
DRIVING THE MACHINE
Drive the Machine Carefully
Steering the Machine Using Pedals
Steering the Machine Using Levers
Travel Mode Switch
Travel Alarm (Optional)
Operating on Soft Ground
Raise One Track Using Boom and Arm
Towing Machine a Short Distance
Operating in Water or Mud
Parking the Machine on Slopes
Parking the Machine
OPERATING THE MACHINE
Control Lever (Iso Pattern)
Control Lever (HITACHI Pattern)
Control Lever (4 Way Multi Valve) (Optional)
Control Lever (2 Way Multi Valve) (Optional)
Attachment Pedal (Hydraulic Breaker) (Optional)
Attachment Pedal (Hydraulic Crusher) (Optional)
Pilot Control Shut-off Lever
Engine Speed Control
Auto-idle
Work Mode
Work Mode Select
Power Boost
Power Mode
Operating Backhoe
Grading Operation
Face Shovel Operation
Avoid Abusive Operation
Operating Tips
Select Correct Track Shoes
Hydraulic Breaker and Hydraulic Crusher
Pipings for Breaker and Crusher
Secondary Relief Pressure Adjustment
Precautions for Breaker Operation
Breaker Maintenance
Precautions for Crusher Operation
Attachment
Attachment Connection Parts
Precaution for Arm Roll-in/bucket Roll-in Combined Operation- If Headguard-Integrated Cab or Rainguard is Equipped
When Installing an Attachment Longer Than Standard Bucket
Shackle Hole Usage
Overnight Storage Instructions
Emergency Boom Lowering Procedure (Without Hose-Rupture Safety Valve)
Object Handling – If Equipped
TRANSPORTING
Transporting By Road
Loading/Unloading on a Trailer
Machine Lifting Procedure
MAINTENANCE
Correct Maintenance and Inspection Procedures
Check the Hour Meter Regularly
Use Correct Fuels and Lubricants
Layout
Maintenance Guide Table
Prepare Machine for Maintenance
Hood and Access Covers
Periodic Replacement of Parts
Maintenance Guide
A. Greasing
Front Joint Pins
Swing Bearing
Swing Internal Gear
Electric Grease Gun (Only ZX350LC-3)
B. Engine
Engine Oil Level
Change Engine Oil
Replace Engine Oil Filter
C. Transmission
Pump Transmission
Swing Reduction Gear
Travel Reduction Gear
D. Hydraulic System
Inspection and Maintenance of HydraulicEquipment
Breaker Maintenance
Check Hydraulic Oil Level
Change Hydraulic Oil
Suction Filter Cleaning
Replace Hydraulic Oil Tank Filter
Replace Pilot Oil Filter
Replace Air Breather Element
Check Hoses and Lines
Service Recommendations for Hydraulic Fittings
E. Fuel System
Drain Fuel Tank Sump
Drain Fuel Filter
Replace Fuel Main Filter Element
Replace Fuel Pre-Filter Element
Clean Fuel Solenoid Pump Strainer
Check Fuel Hoses
F. Air Cleaner
Clean Air Cleaner Outer Element
Replace Air Cleaner Outer and Inner Elements
G. Cooling System
Check Coolant Level
Check and Adjust Fan Belt Tension
Change Coolant
Clean Radiator Interior
Clean Radiator, Oil Cooler Core and Inter Cooler
Clean Oil Cooler, Radiator and Inter Cooler Front Screen
Clean Air Conditioner Condenser
Clean Fuel Oil Cooler
Clean Air Conditioner Front Screen (Opt.)
H. Electrical System
Batteries
Replace Batteries
Replacing Fuses
I. Miscellaneous
Check Bucket Teeth
Change Bucket
Convert Bucket Connection Into Face Shovel
Adjust Bucket Linkage
Remove Travel Levers
Check and Replace Seat Belt
Check Windshield Washer Fluid Level
Check Track Sag
Clean and Replace Air Conditioner Filter
Check Air Conditioner
Clean Cab Floor
Retighten Cylinder Head Bolt
Inspect and Adjust Valve Clearance
Measure Engine Compression Pressure
Check Starter and Alternator
Check and Replace EGR Device
Check Tightening Torque of Bolts and Nuts
MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
Maintenance Under Special EnvironmentalConditions.
STORAGE
Storing the Machine
Removing the Machine from Storage
TROUBLESHOOTING
Impossible to Start the Engine
Engine
Electrical System
Mode Selection
Control Levers
Hydraulic System
SPECIFICATIONS
Specifications (ZX120-3)
Working Ranges (ZX120-3)
Shoe Types and Applications (ZX120-3)
Bucket Types and Applications (ZX120-3)
Specifications (ZX160LC-3)
Working Ranges (ZX160LC-3)
Shoe Types and Applications (ZX160LC-3)
Bucket Types and Applications (ZX160LC-3)
Specifications (ZX200LC-3)
Working Ranges (ZX200LC-3)
Shoe Types and Applications (ZX200LC-3)
Bucket Types and Applications (ZX200LC-3)
Specifications (ZX240LC-3)
Working Ranges (ZX240LC-3)
Shoe Types and Applications (ZX240LC-3)
Bucket Types and Applications (ZX240LC-3)
Specifications (ZX270-3, 270LC-3)
Working Ranges (ZX270-3, 270LC-3)
Shoe Types and Applications (ZX270-3, 270LC-3)
Bucket Types and Applications (ZX270-3, 270LC-3)
Specifications (ZX350LC-3)
Working Ranges (ZX350LC-3)
Shoe Types and Applications (ZX350LC-3)
Bucket Types and Applications (ZX350LC-3)
OPTIONAL ATTACHMENTS AND DEVICES
Using Pad Crawler Shoe
Traveling and Other Cautions
Transporting
Precautions for Transporting Machines with Pad Crawler Shoes
Long Arm Operation – If Equipped
Blade Lever
Precautions for Blade Operation
Avoid Hitting Blade with Front-end Attachment
Avoid Hitting Blade with Bucket
Avoid Striking The Blade Into a Rock
Blade Maintenance
Specifications (ZX120-3, 130L-3 with Blade)
Working Ranges (ZX120-3, 130L-3 with Blade)
Shoe Types and Applications (ZX120-3 with Blade)
INDEX

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