Part of the Hyundai Repair Manuals.
Need factory answers for your Hyundai R210-3, R210LC-3 crawler excavator? This 486-page shop manual PDF walks you through every system, from the main pump and control valve to the swing and travel drives. Inside: full hydraulic circuit schematics covering the main and pilot circuits, electrical wiring diagrams with component locations, and a dedicated troubleshooting section for the mechatronics side (mode selection, auto deceleration, power boost). You also get complete disassembly and assembly procedures for the pump device, main control valve, swing device, and boom, arm, and bucket cylinders. Torque the swing bearing upper mounting bolts to 57.8 kgf·m and the track shoe bolts to 81 kgf·m; set the main relief valve at 320 kg/cm2. No more chasing hydraulic faults with a gauge and a guess. Bookmarked with a full text layer: search any spec, jump to any section, and get back on the sticks.
What's Inside This Hyundai R210-3, R210LC-3 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-38 | Safety, Specifications |
| Structure and Function | 39-97 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Rcv Pedal |
| Hydraulic System | 98-129 | Hydraulic Circuit, Main Circuit, Pilot Circuit |
| Electrical System | 130-186 | Component Location, Electrical Circuit, Monitoring System, Electrical Component Specification |
| Mechatronics System | 187-210 | Outline, Mode Selection System, Automatic Deceleration System, Power Boost System |
| Troubleshooting | 211-273 | Hydraulic and Mechanical System, Drive System, Electrical System, Test Procedures |
| Maintenance Standard | 274-310 | Operational Performance Test, Track and Work Equipment |
| Disassembly and Assembly | 311-486 | Precautions, Pump Device, Main Control Valve, Swing Device, Travel Device, Boom Arm and Bucket Cylinder |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Swing bearing upper part mounting bolt | 57.8 ± 6.4 kgf·m | p. 314 |
| Track shoe mounting bolt, nut | 81 ± 4.0 kgf·m | p. 314 |
| Air bleed procedure | 4-5 times, stopping 100mm before the end of the stroke | p. 312 |
| Engine Oil Quantity | 16.4 L | p. 34 |
| Main Relief Valve Pressure | 320 kg/cm2 | p. 35 |
| Swing Motor Relief Pressure | 240 kg/cm2 | p. 35 |
| Travel Motor Operating Pressure | 320 kg/cm2 | p. 35 |
Hyundai R210-3, R210LC-3 Common Problems This Manual Covers
Hyundai R210-3 will not hold on a slope, tracks creep with travel levers in neutral
Check travel motor brake pressure first; operating pressure spec is 320 kg/cm2 (4551 psi) on page 35. Inspect the parking brake pilot line for clogging and the friction plates for wear. If plates look good, pull the travel motor drain line and check for blockage before condemning the motor.
Manual Section: Travel System Troubleshooting p. 35Boom and bucket act jerky and weak after cylinder reseal, hydraulic functions erratic
Check the hydraulic oil level, then bleed each cylinder: cycle it 4-5 times, stopping 100 mm before the end of the stroke, following the procedure on page 312. Run the engine at low idle while bleeding, then top off the reservoir and watch for foam or cloudy oil.
Manual Section: Disassembly and Assembly p. 312Digging power weak and slow, boom stalls under load, hydraulic oil runs hot
Test main relief valve pressure against the 320 kg/cm2 (4551 psi) spec on page 35. If pressure reads low, adjust the relief valve; if it will not hold, inspect for contamination or a stuck poppet. Hot, cloudy oil points to cavitation, so check suction lines and oil level too.
Manual Section: Hydraulic System Troubleshooting p. 35Upperstructure swings slow and drifts downhill when the machine parks across a grade
Measure swing motor relief pressure; it should hold 240 kg/cm2 (3698 psi), the spec on page 35. Low relief pressure lets the house drift on a grade. While you are up there, verify swing bearing upper mounting bolts at the 57.8 ± 6.4 kgf·m torque listed on page 314.
Manual Section: Swing System Troubleshooting p. 35Track shoes clunk over the sprockets and shoe bolts keep backing out during travel
Torque every track shoe bolt and nut to 81 ± 4.0 kgf·m (585.9 ± 28.9 N·m), the spec on page 314. Replace any bolt that ran loose; stretched threads will not hold torque. Recheck torque after the first shift of travel and inspect shoe faces for elongated bolt holes.
Manual Section: Disassembly and Assembly p. 314Frequently Asked Questions
What are the replacement specifications for the parking brake friction plate?
The friction plate for the parking brake must be replaced if both edges are nonuniformly worn out or if the required torque cannot be achieved. The standard braking torque is 49.3 kgf·m or more, and it should be replaced if the torque falls to 49.3 kgf·m or less. p. 299
What is the tightening torque for the engine mounting bolts and nuts?
The standard tightening torque for the engine mounting bolts and nuts (M16 x 2.0) is 10 kgf·m (72.3 lbf·ft). p. 314
What is the standard engine oil capacity for the R210-3?
The engine oil pan capacity for the R210-3 is 16.4 liters (4.3 U.S. gallons). p. 34
What is the procedure for bleeding air from the hydraulic pump after installation?
To bleed air from the hydraulic pump, remove the air vent plug, fill the pump with hydraulic oil until it overflows, tighten the plug lightly, start the engine at low idling, and check for oil coming out of the plug before tightening it fully. p. 318
What is the standard clearance between the piston and cylinder bore for the main pump?
The standard clearance between the piston and cylinder bore for the main pump is 0.039mm, with a recommended replacement value of 0.067mm. p. 294
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