Hyundai R250LC-7 Repair Manual [Crawler Excavator]

Factory Service Repair Manual For Hyundai R250LC-7. Step by step Instructions, illustrations, diagrams. This service manual mainly contains the necessary technical information for operations performed
in a service workshop.

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Models

Hyundai R250LC-7 Crawler Excavator

Contents

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