Hyundai R290LC-3 Excavator Service Manual 2004-2007

Hyundai R290LC-3 Excavator Technical Overview

• Covers 2004–2007 Hyundai R290LC-3, ROBEX 290-3, and ROBEX 290NLC-3 crawler-type excavators including bucket, arm, and undercarriage variants
• Original OEM publication, form number 2-1 through 2-62, copyright and date reference included in foreword
• Contains 476 pages of technical documentation including over 80 system diagrams, hydraulic circuit schemas, cross-section component views, and lifting capacity tables
• Accessible from your device as soon as the order is placed
• Full-text search finds any part number in seconds
• Suitable for printing individual sections for shop-floor use
• This 2004–2007 edition remains the factory reference for the R290LC-3 build series, documenting engine tuning, hydraulic system logic, and swing device assembly parameters

Component and System Documentation

The 2004–2007 Hyundai R290LC-3 service manual details the function and structure of key machine systems. Chapters cover general specifications and safety hints, hydraulic circuit diagrams for single and combined operations, and electrical system component locations with wiring schematics. The mechatronics section explains the CAPO system and EPPR valve operation, while the maintenance section defines performance standards for tracks, work equipment, and major components.

Disassembly and assembly procedures are outlined for the pump device, main control valve, swing and travel motors, and cylinder assemblies. The final chapters provide detailed troubleshooting charts correlating common operational problems with their mechanical or electrical causes.

Specification and Reference Data

The manual includes extensive tables for unit conversion, lifting capacities based on SAE J1097, and bucket selection guides tailored to material density requirements. Technical data sections contain specific engine specifications for the CUMMINS 6CT8.3-C, including firing order, piston displacement, and fuel consumption values. Hydraulic reference data for pumps and relief valves are provided with flow rates and pressure settings.

• The CUMMINS 6CT8.3-C displacement is documented at 8270 cc.
• Main pump rated oil flow is listed at 2 x 260 L/min in the specification section.
• The R290LC-3 swing motor relief pressure is specified at 240 kg/cm².

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions.

An official 476-page Hyundai OEM service manual covering the 2004–2007 R290LC-3 excavator, documenting engine, hydraulic, electrical, and mechatronic specifications for the full range of heavy-duty crawler configurations.