Part of the Hyundai Repair Manuals.
All 531 pages of this Hyundai Robex 480LC-9, 480-9, 520LC-9 Service Manual PDF focus on one job: getting your crawler excavator back to factory condition. Inside: hydraulic circuit schematics covering main and pilot routing, full electrical wiring diagrams with connector pinouts, and a self-diagnostic troubleshooting section for the mechatronics and engine control systems. You also get step-by-step disassembly and assembly procedures for the pump device, main control valve, swing and travel motors, plus mounting torque tables for everything from the undercarriage to the work equipment. Chasing a fuel gauge complaint? The sender should read 50 Ω at full and 600 Ω near empty, with 20-32V at cluster pin 1. No more hunting electrical gremlins with a multimeter and a prayer. Bookmarked with a real text layer: jump to any section, search any spec, right from the phone in your shop.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-55 | Safety Hints, Specifications |
| Structure and Function | 56-133 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal |
| Hydraulic System | 134-163 | Hydraulic Circuit, Main Circuit, Pilot Circuit |
| Electrical System | 164-214 | Component Location, Electrical Circuit, Electrical Component Specification |
| Mechatronics System | 215-269 | Outline, Mode Selection System, Self-Diagnostic System |
| Maintenance Standard | 338-373 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 374-516 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 517-531 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Fuel sender resistance at Full | 50 Ω | p. 186 |
| Fuel sender resistance at 11/12 | 100 Ω | p. 186 |
| Hydraulic oil temperature gauge white range | 40-105°C (104-221°F) | p. 249 |
| Engine coolant temperature gauge white range | 40-105°C (104-221°F) | p. 249 |
| Cluster connector pin 1 battery voltage | 20-32V | p. 248 |
| Cluster connector pin 5 power IG voltage | 20-32V | p. 248 |
| Travel motor mounting bolt | 57.9 ± 8.7 kgf·m (419 ± 62.9 lbf·ft) | p. 379 |
| Tightening torque for Travel motor | 57.9±6.0 kgf·m (419±43.4 lbf·ft) | p. 526 |
| Engine Oil Quantity | 37.85 L | p. 51 |
| ROBEX 480LC-9 | ||
| Operating Weight, ROBEX 480LC-9 | 48100 kg | p. 23 |
| ROBEX 480-9 | ||
| Operating Weight, ROBEX 480-9 | 46900 kg | p. 24 |
| ROBEX 520LC-9 | ||
| Operating Weight, ROBEX 520LC-9 | 51000 kg | p. 25 |
