Part of the Hyundai Repair Manuals.
Looking for the Hyundai R210LC-7H, R220LC-7H service manual PDF? All 484 pages cover the ROBEX 210LC-7H and 220LC-7H hydraulic excavators, from pump device teardown to final track tension adjustment. Inside: full hydraulic circuit schematics with pilot and main circuit routing, complete electrical wiring diagrams with connector pinouts, and a full troubleshooting section for hydraulic, electrical, and mechatronics faults. You also get disassembly and assembly procedures for the main control valve, swing device, travel device, and turning joint, backed by mounting torque tables for every system. Fill the hydraulic tank to 180 L (290 L total system) and torque the track roller mounting bolts to 54.7 kgf-m. No more chasing a swing fault through your cab harness with forum guesses. Bookmarked with a full text layer; jump to any section, search any spec, and get wrenching.
What's Inside This Hyundai R210LC-7H, R220LC-7H Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 12-40 | Safety Hints, Specifications |
| Structure and Function | 41-130 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal |
| Hydraulic System | 131-162 | Hydraulic Circuit, Main Circuit, Pilot Circuit |
| Electrical System | 163-212 | Component Location, Electrical Circuit, Electrical Component Specification |
| Mechatronics System | 213-255 | Outline, Mode Selection System, Monitoring System |
| Maintenance Standard | 312-347 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 348-468 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 469-484 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic tank capacity | 180 L (48 U.S. gal) | p. 40 |
| Hydraulic system capacity | 290 L (77 U.S. gal) | p. 40 |
| Main relief valve, port relief valve & negative control relief valve inspection | 100% replacement in general | p. 335 |
| Track roller mounting bolt | 54.7 ± 5.0 kgf·m | p. 352 |
| Engine mounting bolt, nut | 90 ± 7.0 kgf·m | p. 352 |
| Main pump mounting socket bolt | 42 ± 4.5 kgf·m | p. 352 |
| Main relief valve tightening torque | 7~8 kgf·m (50.6~57.8 lbf·ft) | p. 389 |
| Check valve plug tightening torque | 23~27 kgf·m (166~195 lbf·ft) | p. 389 |
| Tightening torque for Socket head bolt (Item 22) on Boom cylinder | 23.0±2.0 kgf·m (166±14.5 lbf·ft) | p. 445 |
| Tightening torque for Socket head bolt (Item 30) on Boom cylinder | 5.4±0.5 kgf·m (39.1±3.6 lbf·ft) | p. 445 |
| Tightening torque for track roller bolts (Item 2, Group 5) | 12.8±3.0 kgf·m | p. 476 |
| Tightening torque for engine and accessories mounting (Item 1, Group 2) | 0.92±0.2 kgf·m | p. 471 |
Hyundai R210LC-7H, R220LC-7H Common Problems This Manual Covers
Hyundai R210LC-7H all hydraulic functions weak, boom and bucket slow, machine will not build full pressure
Test main pump pressure against the 330 kgf/cm2 spec on page 36. If pressure is low across every circuit, follow the hydraulic troubleshooting procedures starting and pull the main relief valve. Hyundai calls for 100 percent replacement of relief valves, not rebuilding (page 335); torque the new valve to 7 to 8 kgf·m per page 389.
Manual Section: Hydraulic and Mechanical System Troubleshooting p. 260Boom or bucket drifts down with pilot valve in neutral, cylinder creeps under load
Swap the port relief valves between the boom and bucket circuits to isolate the fault. If the drift follows the valve, replace it; Hyundai specifies full replacement rather than reseating (page 335). If drift stays put, reseal the boom cylinder and torque the gland socket head bolts to 23.0 plus or minus 2.0 kgf·m per page 445.
Manual Section: Maintenance Standard p. 335Hydraulic pump whines or growls, oil overheats, all actuators lose speed under load
Check hydraulic oil level first; the tank holds 180 L (48 U.S. gal, page 40). Drain and inspect the return filter element: the bypass relief opens at only 1.5 kgf/cm2 (21 psi, page 134), so a clogged element dumps unfiltered oil straight back to the tank. Refill with clean oil; full system capacity is 290 L.
Manual Section: Hydraulic System p. 134Machine pulls to one side when traveling, swing feels slow and weak under load
Measure relief pressures on both sides: travel motor relief should hit 330 kgf/cm2 and swing motor relief 240 kgf/cm2 (page 37). Swing speed below the 12.5 rpm spec confirms a swing circuit fault. Work through the travel and swing troubleshooting charts beginning, and replace any relief valve that tests low.
Manual Section: Hydraulic and Mechanical System Troubleshooting p. 260Auto idle not working, mode selection buttons dead, power max switch has no effect
Verify pilot pressure at 35 kgf/cm2 (page 136) before blaming the controller; power max and auto idle both act through pilot operated solenoids. Trace the mode selection and monitoring circuits with the wiring diagram on page 166, then test each switch input against the mechatronics system description starting on page 213.
Manual Section: Mechatronics System p. 213Frequently Asked Questions
How do I clear recorded error codes on the Hyundai R210LC-7H or R220LC-7H?
To delete all recorded error codes, select the recorded error (TIME Er) display on the cluster. Press the engine switch and the select switch simultaneously for 2 seconds or more. The display will change to 'TIME Er : 00', indicating that the CPU controller has deleted all recorded error codes from its memory. p. 225
What does error code 03 mean on the Hyundai R210LC-7H or R220LC-7H?
Error code 03 indicates a short circuit in the pump EPPR valve system. This is diagnosed by the self-diagnosis system in the CPU controller. p. 226
What are the replacement specifications for the main relief valve?
The main relief valve should be replaced if it is damaged. If the contacting face of the valve seat or poppet is damaged, it should be replaced. O-rings, back-up rings, and seals should be replaced 100% in general. p. 335
What is the tightening torque for the main pump mounting socket bolt?
The tightening torque for the main pump mounting socket bolt (M20 x 2.5) is 42 ± 4.5 kgf·m (304 ± 32.5 lbf·ft). p. 352
What is the standard clearance between the track roller shaft and bushing?
The standard clearance between the track roller shaft and bushing is 0.39 to 0.476 mm, with a clearance limit of 2.0 mm. p. 342
What format is this Hyundai R210LC-7H manual in?
Immediate download of the complete 484-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Can I print specific sections of this Hyundai R210LC-7H Service Manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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