Part of the Hyundai Repair Manuals.
Wrenching on a Hyundai R110-7A or R110D-7A? This 423-page Hyundai shop manual PDF covers both hydraulic excavator variants, from the main pump and control valve to the swing and travel devices. Inside: full hydraulic circuit schematics with pilot and combined-operation flow paths, electrical wiring diagrams with connector pinouts, and a mechatronics section covering the self-diagnostic system and EPPR valve. You also get a full troubleshooting chapter plus step-by-step disassembly and assembly procedures for every major component, torque tables included. Set the pilot relief valve at 35 kgf/cm2 and fill the hydraulic system to 210 L; the tank alone takes 100 L. Check piston-to-shoe play against the 0-0.1 mm limit before you condemn that pump. Your excavator is dead in the yard while you hunt for numbers. Bookmarked with a full text layer: search any spec, jump to any section, get back to digging.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 3-27 | Safety Hints, Specifications |
| Structure and Function | 28-107 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal |
| Hydraulic System | 108-140 | Hydraulic Circuit, Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 141-168 | Component Location, Electrical Circuit, Electrical Component Specification |
| Mechatronics System | 169-200 | Outline, Mode Selection System, Monitoring System |
| Maintenance Standard | 248-283 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 284-400 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 401-423 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hydraulic oil capacity (Tank) | 100 L (26.4 U.S. gal) | p. 23 |
| Hydraulic oil capacity (System) | 210 L (55.5 U.S. gal) | p. 26 |
| Pilot relief valve setting pressure | 35kgf/cm2 | p. 112 |
| Play between piston(1) & shoe caulking section(3) | 0-0.1 mm | p. 268 |
| Hydraulic tank quantity | 100 L (26.4 U.S. gal) | p. 290 |
| Main relief valve tightening torque | 8~9 kgf·m (57.8~65.1 lbf·ft) | p. 324 |
| Overload relief valve tightening torque | 8~9 kgf·m (57.8~65.1 lbf·ft) | p. 324 |
| Engine oil quantity | 18.5 L | p. 23 |
| Rated gross horse power | 97 Hp at 1800 rpm | p. 23 |
| Main relief valve pressure | 330 kgf/cm2 | p. 24 |
| R110-7A | ||
| Operating weight, R110-7A | 11200 kg | p. 12 |
| R110D-7A | ||
| Operating weight, R110D-7A | 11900 kg | p. 13 |
