Hyundai R290LC-7 Crawler Excavator Service Repair Manual

Table of Contents

SECTION 1 GENERAL
Group 1 Safety Hints
Group 2 Specifications
SECTION 2 STRUCTURE AND FUNCTION
Group 1 Pump Device
Group 2 Main Control Valve (-#1176)
Group 2 Main Control Valve (#1177-)
Group 3 Swing Device
Group 4 Travel Device
Group 5 RCV Lever
Group 6 RCV Pedal
SECTION 3 HYDRAULIC SYSTEM
Group 1 Hydraulic Circuit (-#1176)
Group 1 Hydraulic Circuit (#1177-)
Group 2 Main Circuit
Group 3 Pilot Circuit
Group 4 Single Operation
Group 5 Combined Operation
SECTION 4 ELECTRICAL SYSTEM
Group 1 Component Location
Group 2 Electrical Circuit
Group 3 Electrical Component Specification
Group 4 Connectors
Group 5 Electrical Circuit
SECTION 5 MECHATRONICS SYSTEM
Group 1 Outline
Group 2 Mode selection System
Group 3 Automatic Deceleration System
Group 4 Power Boost System
Group 5 Travel Speed Control System
Group 6 Automatic Warming Up Function
Group 7 Engine Overheat Prevention Function
Group 8 Anti-Restart System
Group 9 Self-Diagnostic System
Group 10 Engine Control System
Group 11 EPPR(Electro Proportional Pressure Reducing) Valve
Group 12 Prolix Switch
Group 13 Monitoring System
Group 14 Outline(Tier II only)
Group 15 Mode Selection System (Tier II only)
Group 16 Automatic Deceleration System(Tier II only)
Group 17 Power Boost System(Tier II only)
Group 18 Automatic Warning Up Function (Tier II only)
Group 19 Engine Overheat Prevention(Tier II only)
Group 20 Self-Diagnostic System(Tier II only)
SECTION 6 TROUBLESHOOTING
Group 1 Before troubleshooting
Group 2 Hydraulic and Mechanical System
Group 3 Electrical System
Group 4 Mechatronics System
Group 5 Electric System (Tier II only)
Group 6 Mechatronics System (Tier II only)
SECTION 7 MAINTENANCE STANDARD
Group 1 Operational Performance Test
Group 2 Major Components
Group 3 Track and Work Equipment
SECTION 8 DISASSEMBLY AND ASSEMBLY
Group 1 Precaution
Group 2 Tightening Torque
Group 3 Pump Device
Group 4 Main Control Valve (-#1176)
Group 4 Main Control Valve (#1177-)
Group 5 Swing Device
Group 6 Travel Device
Group 7 RCV Lever
Group 8 Turning Joint
Group 9 Boom, Arm and Bucket Cylinder
Group 10 Undercarriage
Group 11 Work Equipment
SECTION 9 COMPONENT MOUNTING TORQUE
Group 1 Introduction guide
Group 2 Engine system
Group 3 Electric system
Group 4 Hydraulic system
Group 5 Undercarriage
Group 6 Structure
Group 7 Work equipment

This 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. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
This mainly contains the necessary technical information for operations performed in a service workshop.