Hyundai R250LC-3 Repair Manual [Crawler Excavator]

Factory Service Repair Manual For Hyundai R250LC-3. Step by step Instructions, illustrations, diagrams. This service manual has been prepared as an aid to improve the quality of repairs by giving the
serviceman an accurate understanding of the product and by showing him the correct way to
perform repairs and make judgements.

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Models

Hyundai R250LC-3 Crawler Excavator

Contents

For ease of understanding, the manual is divided into chapters for each main group of components;
these chapters are further divided into the following sections.

FOREWORD
GENERAL
1 Safety Hints
2 Specifications
STRUCTURE AND FUNCTION
1 Pump Device
2 Mam Control Valve
3 Swing Device
4 Travel Device
5 RCV Lever
6 RCV Pedal
HYDRAULIC SYSTEM
1 Hydraulic Circuit
2 Mam 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 Warning Up Function
7 Engine Overheat Prevention Function
8 Max Flow Cut-Off Function
9 Swing Speed Control System
10 Arm Half Flow System
11 Anti-Restart System
12 Self-Diagnostic System
13 Engine Control System
14 EPPR(Electro Proportional Pres sine Reducing) Valve
15 Prolix Switch
16 Monitoring System
TROUBLESHOOTING
1 Hydraulic and Mechanical System
2 Electrical System
3 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 Mam Control Valve
5 Swing Device
6 Travel Device
7 RCV Lever
S Turning Joint
9 Boom. Arm and Bucket Cylinder
10 Undercarriage
11 Work Equipment