Part of the Hyundai Repair Manuals.
Need real factory data for your Hyundai R250LC-7 or R250NLC-7? This 520-page Hyundai R250LC-7, R250NLC-7 service manual PDF walks both Crawler Excavator variants from safety checks through work equipment teardown. You get full hydraulic schematics with component mounting details for the pump, control valves, and boom, arm, and bucket cylinders, plus wiring diagrams that trace every circuit on the machine. A fat troubleshooting section backs up error code references and torque tables for metric fasteners. Fill the hydraulic tank to 190 L (300 L total system), set the pilot relief valve at 35 kgf/cm2, and check the engine speed sensor at 300 ± 30 Ω before you condemn a harness. Tired of pressure-testing blind? Bookmarked with a full text layer: punch in a spec, jump straight to the page, and get your excavator digging again.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction Guide | 506 | Bolt Specifications, Standard Torque Values, Metric Fasteners |
| Engine System | 507 | Engine Mounting, Radiator Mounting, Coupling Mounting, Air Cleaner, Accel Actuator |
| Cooling System and Fuel Tank Mounting | 508 | Water Separator, Air Compressor, Receiver Drier, Oil Cooler, Reservoir Tank, Fan Guard |
| Electric System | 509-510 | Electric Components Mounting 1, Electric Components Mounting 2 |
| Hydraulic System | 511-513 | Hydraulic Components Mounting 1, Hydraulic Components Mounting 2, Hydraulic Components Mounting 3 |
| Undercarriage | 514-515 | Undercarriage Mounting, Undercarriage Mounting High Walker |
| Structure | 516-519 | Cab and Accessories Mounting, Cab Interior Mounting, Cowling Mounting, Counterweight and Covers Mounting |
| Work Equipment | 520 | Arm Cylinder, Bucket Cylinder, Boom Cylinder, Bucket Control Link, Side Cutter |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Hydraulic tank capacity | 190 L (50.2 U.S. gal) | p. 29 |
| Hydraulic system capacity | 300 L (79.3 U.S. gal) | p. 29 |
| Bypass relief valve opening pressure | 1.5kgf/cm2 (21psi) | p. 130 |
| Pilot relief valve setting pressure | 35kgf/cm2 | p. 132 |
| Engine speed sensor resistance | 300 ± 30 Ω | p. 226 |
| Track shoe mounting bolt, nut | 78 ± 8.0 kgf·m (564 ± 57.8 lbf·ft) | p. 344 |
| Tightening torque for M20 x 2.5 (Item 3) | 57.9 ± 8.7 kgf·m (419 ± 62.9 lbf·ft) | p. 520 |
| Tightening torque for M22 x 2.5 (Item 4) | 81.9 ± 16.1 kgf·m (592 ± 116 lbf·ft) | p. 520 |
| Engine oil quantity | 24 L | p. 25 |
| Fuel tank capacity | 340 L | p. 29 |
| R250LC-7 | ||
| Operating weight, R250LC-7 | 25200 kg | p. 11 |
| R250NLC-7 | ||
| Operating weight, R250NLC-7 | 25100 kg | p. 12 |
