Hyundai R450-7A / 500LC-7A Repair Manual [Crawler Excavator]

Factory Service Repair Manual For Hyundai R450-7A / 500LC-7A. Step by step Instructions, illustrations, diagrams.

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Models

Hyundai R450-7A / 500LC-7A Crawler Excavator

Contents

FOREWORD
CONTENTS
GENERAL
Safety Hints
Specifications
STRUCTURE
Pump Device
Main Control Valve
Swing Device
Travel Device
RCV Lever
RCV Pedal
HYDRAULIC SYSTEM
Hydraulic Circuit
Main Circuit
Pilot Circuit
Single Operation
Combined Operation
ELECTRICAL SYSTEM
Component Location
Electrical Circuit
Electrical Component Specification
Connectors
MECHATRONICS SYSTEM
Outline
Mode selection System
Automatic Deceleration System
Power Boost System
Travel Speed Control System
Automatic Warming Up Function
Engine Overheat Prevention Function
Anti-Restart System
Self-Diagnostic System
0 Engine Control System
1 EPPR(Electro Proportional Pressure Reducing) Valve
2 Monitoring system
TROUBLESHOOTING
Before troubleshooting
Hydraulic and Mechanical System
Electrical System
Mechatronics System
MAINTENANCE STANDARD
Operational Performance Test
Major Components
Track and Work Equipment
DISASSEMBLY AND ASSEMBLY
Precaution
Tightening Torque
Pump Device
Main Control Valve
Swing Device
Travel Device
RCV Lever
Turning Joint
Boom, Arm and Bucket Cylinder
0 Undercarriage
1 Work Equipment
COMPONENT MOUNTING TORQUE
Introduction guide
Engine system
Electric system
Hydraulic system
Undercarriage
Structure
Work equipment