Part of the Hyundai Repair Manuals.
Wrenching on a Hyundai Robex 210LC-7A, R210LC-7A Long Reach, or R210LC-7A High Walker? This 504-page service manual PDF gives you factory procedures for every variant of the crawler excavator, from the pump device to the final drives. Inside: hydraulic schematics tracing the main and pilot circuits, wiring diagrams with connector pinouts and component locations, and exploded views for tearing down the swing device, travel device, and turning joint. You also get troubleshooting charts for the hydraulic, electrical, and Mechatronics systems, plus torque tables covering the whole machine. Fill the hydraulic system to 290L (180L in the tank alone) and top the radiator reservoir off at 35L before startup. No more chasing a dead travel alarm through forum threads. Bookmarked with a live text layer: search any spec, jump straight to the section, and get back on the sticks.
What's Inside This Hyundai ROBEX 210LC-7A, R210LC-7A LONG REACH, R210LC-7A HIGH WALKER Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 12-47 | Safety Hints, Specifications |
| Structure and Function | 48-127 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal |
| Hydraulic System | 128-159 | Hydraulic Circuit, Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 160-209 | Component Location, Electrical Circuit, Electrical Component Specification, Connectors |
| Mechatronics System | 210-250 | Outline, Mode Selection System, Automatic Deceleration System, Power Boost System, Travel Speed Control System, Automatic Warming Up Function, Engine Overheat Prevention Function |
| Maintenance Standard | 301-335 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 336-488 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 489-504 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic tank capacity | 180L (48 U.S. gal) | p. 47 |
| Hydraulic system capacity | 290L (77 U.S. gal) | p. 47 |
| Radiator (Reservoir tank) capacity | 35L (9.2 U.S. gal) | p. 47 |
| Flow control starting pressure change amount | +1.5 kgf/cm2 | p. 60 |
| Input torque change amount for inner spring adjustment at 1900 min-1 | +4.6 kgf·m | p. 65 |
| Tightening torque for PF 1 port | 20~25 kgf·m (115~180 lbf·ft) | p. 69 |
| Tightening torque for PF 3/4 port | 15~18 kgf·m (109~130 lbf·ft) | p. 69 |
| Bypass relief valve opening pressure | 1.5kgf/cm2 | p. 131 |
| Check valve(1) setting pressure | 3.0kgf/cm2 | p. 131 |
| Transducer (Pump 1, 2) 0bar | 1V | p. 188 |
| Transducer (Pump 1, 2) 500bar | 5V | p. 188 |
| Tightening torque for 1/4" flare type pipe and hose | 4 kgf·m | p. 342 |
Hyundai ROBEX 210LC-7A, R210LC-7A LONG REACH, R210LC-7A HIGH WALKER Common Problems This Manual Covers
Hyundai Robex 210LC-7A hydraulics weak and slow under load, bucket digs without power
Check hydraulic oil level in the 180 L (48 U.S. gal) tank, spec on page 47, before condemning the pump. Test main relief pressure against the setting in the General specifications. If pressure falls short, inspect the suction strainer and confirm the pilot circuit relief holds the setting in the hydraulic system section, 35 kgf/cm2 per page 133.
Manual Section: Hydraulic and Mechanical System Troubleshooting p. 44Boom or arm drifts down slowly with controls in neutral and engine running
Verify the pilot circuit relief valve opens at its setting in the hydraulic system section, then measure cylinder drift against the operational performance limits in the Maintenance Standard section starting on page 301. Swap suspect holding valves side to side to isolate internal leakage before pulling a cylinder for reseal.
Manual Section: Maintenance Standard p. 301Hydraulic oil temperature climbs past normal and coolant runs hot during steady digging
Check coolant level against the 35 L radiator capacity listed on page 47 and blow out the cooler fins from the fan side. Verify fan belt tension and thermostat operation. If the hydraulic oil temperature warning trips, test the sender with the electrical troubleshooting steps on page 281.
Manual Section: Electrical System Troubleshooting p. 281Engine oil pressure warning lamp stays on after startup even with a warm engine
Check engine oil level first; check it against the sump capacity in the General specifications. Drain and replace the oil filter cartridge, torque it to the chart value on page 492, and inspect hoses and connections for leaks. If pressure reads good on a mechanical gauge, replace the oil pressure sensor instead of chasing the lamp.
Manual Section: Component Mounting Torque p. 492Hydraulic hoses weep oil at fittings and pressure drops after a hose replacement
Clean each fitting face and inspect the O-ring before blaming the new hose. Torque PF 1 ports to 20~25 kgf·m per page 69; flare fittings follow the chart on page 342, starting at 4 kgf·m on 1/4 inch lines. Replace any seal that has taken a set.
Manual Section: Disassembly and Assembly p. 342Frequently Asked Questions
How do I reset the error code on a Hyundai ROBEX 210LC-7A?
To delete recorded error codes, navigate to the 'Diagnosis' menu on the cluster. Select 'Recorded Error', then choose 'Yes' when prompted with 'Do you want to delete all error?'. This will clear the stored error codes from the memory. p. 222
What are the replacement specifications for hydraulic oil?
The hydraulic tank capacity is 180 liters (48 U.S. gal) and the total system capacity is 290 liters (77 U.S. gal). Recommended hydraulic oil is ISO VG 32, 46, or 68 depending on the ambient temperature. p. 47
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. 340
What is the standard clearance between the piston and cylinder block bore in the main pump?
The standard dimension for the clearance between the piston and cylinder block bore (D-d) is 0.039 mm, with a recommended replacement value of 0.067 mm. p. 322
What is the tightening torque for the bucket cylinder rod pin bolt?
The tightening torque for the M16 x 2.0 bolt used on the bucket cylinder rod pin is 29.7 ± 4.5 kgf·m (215 ± 32.5 lbf·ft). p. 504
Will this Hyundai Robex 210LC-7A Service Manual download right away?
Immediate download of the complete 504-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Does this Hyundai Robex 210LC-7A manual allow printing?
Yes. The PDF is DRM-free, so printing works from any reader and any printer.
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