Factory Technical Manual and Workshop Manual For Hitachi ZAXIS 40U, 50U Excavators. Tons of illustrations, instructions, diagrams for step by step remove and install, assembly and disassembly, service, inspection, repair, troubleshooting, tune-ups.
Format: PDF
Language: English
Pages: 655
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
Hitachi ZAXIS 40U, 50U
Contents
1.Technical Manual
2.Workshop Manual
1.Technical Manual
INTRODUCTION
SAFETY
-GENERAL
–SPECIFICATION
Specifications
Working Ranges and Machine-Dimensions for Transportation
–COMPONENT LAYOUT
Main Component
Electrical System
Relays
Monitor and Switches
Solenoid Valve Unit
–COMPONENT SPECIFICATIONS
Engine
Engine Accessories
Hydraulic Component
Filter
Electrical Component
-SYSTEM
–HYDRAULIC SYSTEM
Outline
Pilot Circuit
Main Circuit
–ELECTRICAL SYSTEM
Outline
Power Circuit (key Switch : OFF)
Indicator Light Check Circuit/Accessory Circuit (Key Switch : ON)
Preheat Circuit (Key Switch :ON)
Starting Circuit (Key Switch :START)
Charging Circuit (Key Switch : ON)
Engine Stop Circuit (Key Switch : OFF)
-COMPONENT OPERATION
–PUMP DEVICE
Outline
Main Pump P1
Power Control
Flow Rate Control
PS Valve
–REVOLUTION SENSING VALVE
Outline
Operation
–SWING DEVICE
Outline
Swing Motor
Parking Brake
Valve Unit
Swing Reduction Gear
–CONTROL VALVE
Outline
Hydraulic Circuit
Main Relief Valve
Overload Relief Valve
Make-Up Valve
Main Shut-Off Valve
Boom Anti-Drift Valve
Unload Valve
Differential Reducing Valve
Pressure Compensator
Variable Relief Valve
–PILOT VALVE
Outline
Operation
–TRAVEL DEVICE
Outline
Travel Motor
Travel Brake Valve
Travel Reduction Gear
–OTHERS (UPPERSTRUCTURE)
Solenoid Valve Unit
Pilot Relief Valve
–OTHERS (UNDERCARRIAGE)
Swing Bearing
Center Joint
Track Adjuster
-OPERATIONAL PERFORMANCE TEST
–INTRODUCTION
Operational Performance Test
Preparation for Performance Tests
–STANDARD
Operational Performance Standard
–ENGINE TEST
Engine Speed
Engine Compression Pressure
Valve Clearance
Nozzle Check
Injection Timing
–EXCAVATOR TEST
Travel Speed
Track Revolution Speed
Mistrack Check
Travel Motor Leakage
Swing Speed
Swing Function Drift Check
Swing Motor Leakage
Maximum Swingable Slant Angle
Swing Bearing Play
Hydraulic Cylinder Cycle Time
Dig Function Drift
Control Lever Operating Force
Control Lever Stroke
–COMPONENT TEST
Primary Pilot Pressure
Secondary Pilot Pressure
Main Relief Valve Set Pressure
Overload Relief Valve Set Pressure
Swing Motor Drainage
Travel Motor Drainage
Revolution Sensing Valve Output Pressure
Pump Delivery Pressure
Pump Driving Torque
-TROUBLESHOOTING
–DIAGNOSING PROCEDURE
Introduction
Diagnosing Procedure
–TROUBLESHOOTING A
Troubleshooting A Procedure
Engine System Troubleshooting
Actuator Operating System Troubleshooting
Front Attachment System Troubleshooting
Swing System Troubleshooting
Travel System Troubleshooting
Blade System Troubleshooting
Boom Swing System Troubleshooting
–TROUBLESHOOTING B
Troubleshooting B Procedure
Malfunction of Coolant Temperature Gauge
Malfunction of Fuel Gauge
Malfunction of Alternator Indicator
Malfunction of Engine Oil Pressure Indicator
Malfunction of Overheat Indicator
Malfunction of Fuel Level Indicator
Malfunction of Buzzer
Malfunction of Hour Meter
2.Workshop Manual
INTRODUCTION
SAFETY
-GENERAL INFORMATION
–PRECAUTIONS FOR DISASSEMBLING AND ASSEMBLING
Precautions for Disassembling and Assembling
–TIGHTENING
Tightening Torque Specification
Torque Chart
Piping Joint
Periodic Replacement of parts
–BLEEDING AIR
Bleed Air from Hydraulic Oil Tank
–PAINTING
Painting
-UPPERSTRUCTURE
–CANOPY
Remove and Install Canopy
–COUNTERWEIGHT
Remove and Install Counterweight
–PUMP DEVICE
Remove and Install Pump Device
Disassemble Pump Device
Assemble Pump Device
Maintenance Standard
–CONTROL VALVE
Remove and Install Control Valve
Disassemble And Assemble Control Valve
–SWING DEVICE
Remove and Install Swing Device
Disassemble Swing Reduction Gear
Assemble Swing Reduction Gear
Disassemble Swing Motor
Assemble Swing Motor
Maintenance Standards
–PILOT VALVE
Remove and Install Front Pilot Valve
Remove and Install Travel Pilot Valve
Remove and Install Blade Pilot Valve
Remove and Install Boom Swing Pilot Valve
Disassemble Front Pilot Valve
Assemble Front Pilot Valve
Disassemble Travel Pilot Valve
Assemble Travel Pilot Valve
Disassemble Blade and Boom Swing Pilot Valve
Assemble Blade and Boom Swing Pilot Valve
–SOLENOID VALVE
Disassemble and Assemble Solenoid Valve
Group 8 Revolution Sensing Valve
Remove and Install Revolution Sensing Valve
Disassemble Revolution Sensing Valve
Assemble Revolution Sensing Valve
-UNDERCARRIAGE
–SWING BEARING
Remove And Install Swing Bearing
–TRAVEL DEVICE
Remove And Install Travel Device
Disassemble Travel Device
Assemble Travel Device
Maintenance Standards
–CENTER JOINT
Remove And Install Center Joint
Disassemble Center Joint
Assemble Center Joint
–TRACK ADJUSTER
Remove And Install Track Adjuster
Disassemble Track Adjuster
Assemble Track Adjuster
–FRONT IDLER
Remove And Install Front Idler
Disassemble And Assemble Front Idler
Maintenance Standards
–UPPER AND LOWER ROLLER
Remove and Install Upper Roller
Remove and Install Lower Roller
Disassemble and Assemble Lower Roller
Maintenance Standards
–TRACK
Remove and Install Rubber Crawler
Maintenance Standards
-FRONT ATTACHMENT
–FRONT ATTACHMENT
Remove and Install Front Attachment
Maintenance Standards
–CYLINDER
Remove and Install Cylinders
Disassemble Boom Cylinder
Assemble Boom Cylinder
Disassemble Arm Cylinder
Assemble Arm Cylinder
Disassemble Bucket Cylinder
Assemble Bucket Cylinder
Disassemble Boom Swing Cylinder and Blade Cylinder
Assemble Boom Swing Cylinder and Blade Cylinder
Maintenance Standards
-ENGINE
–GENERAL INFORMATION
General Repair Instruction
Notes On The Format Of This Manual
Appearance
Main Data And Specifications
Tightening Torque Specifications
Angular Nut And Bolt Tightening Method
Tightening Torque On Major Components
Gasket Location
Maintenance
Recomended Lubrication Oil
–ENGINE
Disassembly
Inspection And Repair
Reassembly
–LUBRICATION SYSTEM
Lubrication Oil Circulation System Diagram
Oil Pump
–COOLING SYSTEM
Cooling Water Circulation System Diagram
Water Pump
Thermostat
–FUEL SYSTEM
Fuel Circulation System Diagram
Governor
Nozzle Holder Assembly
–TROUBLESHOOTING
–SPECIAL TOOL
–SERVICE STANDARD
–CONVERSION TABLE
Length
Area
Volume
Mass
Pressure
Torque
Temperature
What you get
You will receive PDF file with high-quality manual on your email immediately after the payment.
Reviews
There are no reviews yet.