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Part of the Hyundai Repair Manuals.
Need factory answers for your Hyundai R130W-3 Wheel Excavator? This 669-page Hyundai R130W-3 service manual PDF covers the machine from main pump to bucket cylinder, straight from the factory. Inside: full electrical circuit diagrams, hydraulic schematics with complete circuit routing, and a troubleshooting section that walks you from symptom to fix on both hydraulic and mechanical systems. You also get teardown and rebuild procedures for the pump device, swing motor, travel motor, transmission, axles, and every cylinder on the work equipment. Main relief valve pressure is 320 kg/cm² and engine oil capacity is 10 liters, both straight from the factory spec tables. No more chasing wiring faults with a multimeter and a prayer. Bookmarked and keyword-searchable; jump straight to the spec, then get back under the machine.
What's Inside This Hyundai R130W-3 Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-40 | Safety, Specification |
| Structure and Function | 41-135 | Pump Device, Main Control Valve, Swing Device, Travel Motor |
| Hydraulic System | 136-166 | Hydraulic Circuit, Main Circuit |
| Electrical System | 167-215 | Component Location, Electrical Circuit |
| Mechatronics System | 216-255 | Outline, Mode Selection System |
| Troubleshooting | 256-311 | Before Troubleshooting, Hydraulic and Mechanical System |
| Maintenance Standard | 312-337 | Operational Performance Test |
| Precautions and General Instructions | 338-343 | Removal Work, Installation Work, Tightening Torque, Pipe and Hose Connections |
| Pump Device | 344-383 | Main Pump Removal and Installation, Regulator Disassembly and Assembly, Gear Pump, Counter Balance Valve |
| Swing Device | 384-398 | Swing Motor Removal and Installation, Swing Motor Disassembly and Assembly, Reduction Gear, Swing Parking Brake |
| Reduction Gear | 399-408 | Reduction Gear Removal and Installation, Planetary Drive Disassembly and Assembly, Declutch Unit, Sun Gear |
| Travel Device | 409-441 | Travel Motor Removal and Installation, Motor Unit, Regulator, Counter Balance Valve |
| Turning Joint and Steering Valve | 442-471 | Turning Joint Removal and Installation, Steering Valve Disassembly and Assembly, Dual Shock Valve, Pressure Relief Valve |
| Transmission and Axle | 472-586 | Transmission Removal, Front Axle, Rear Axle, Differential Disassembly and Assembly, Final Drive |
| Cylinders and Work Equipment | 587-669 | Steering Assembly, Boom Cylinder, Arm Cylinder, Bucket Cylinder, Dozer Cylinder, Bucket Assembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main relief valve pressure | 320 kg/cm² | p. 37 |
| Pilot valve capacity | 10 cc/rev | p. 37 |
| Operating Weight | 12500 kg | p. 19 |
| Engine Oil Quantity | 10 L | p. 36 |
| Main Pump Rated Pressure | 320 kg/cm2 | p. 36 |
| Swing Motor Relief Pressure | 220 kg/cm2 | p. 37 |
| Travel Motor Relief Pressure | 360 kg/cm2 | p. 37 |
| Transmission Weight | 125 kg | p. 123 |
Hyundai R130W-3 Common Problems This Manual Covers
Hyundai R130W-3 all hydraulic functions weak, boom and bucket slow under load
Check main relief valve pressure first. Connect a test gauge to the pump port and stall the bucket circuit; the main pump should hold 320 kg/cm2. If pressure reads low, work through the troubleshooting procedures starting on page 256, then adjust or replace the main relief valve in the control valve.
Manual Section: Troubleshooting p. 256Boom or arm drifts down slowly with controls in neutral, load won't hold
Verify cylinder internal leakage first. Raise the boom, mark the rod, and watch for drift with the controls in neutral. Steady drop means worn piston seals; install a seal kit using the boom cylinder disassembly steps on page 587. If the cylinders hold, test the control valve circuit against the 320 kg/cm2 relief setting.
Manual Section: Cylinders and Work Equipment p. 587Swing weak or sluggish in one direction while travel and boom work fine
Test swing motor relief pressure at the motor port; the spec is 220 kg/cm2 on page 37. A low reading in one direction points to a stuck relief valve or worn seat. Swap the two motor relief valves to confirm; if the fault follows the valve, replace it using the swing device procedures on page 384.
Manual Section: Swing Device p. 384Hydraulic oil overheats and power fades after an hour of steady digging
Check hydraulic oil level and condition first: cloudy or dark oil means contamination or aeration. Inspect the suction line and replace clogged hydraulic filters. Then verify the main relief is not set above the 320 kg/cm2 pump rating; overpressure loads the pump and heats the oil. Follow the oil temperature rise steps on page 256.
Manual Section: Troubleshooting p. 256Travel feels weak on one side, machine pulls to one side on flat ground
Measure travel motor relief pressure at each motor; the spec is 360 kg/cm2. A low side points to a relief valve or counterbalance valve fault. Swap the relief valves between motors to confirm before buying parts, then service the motor unit and counterbalance valve using the travel device procedures on page 409.
Manual Section: Travel Device p. 409Frequently Asked Questions
How do I reset the error codes on a Hyundai R130W-3?
To delete all recorded error codes, select the recorded error (TIME Err) display on the cluster. Press the engine speed up and down switches simultaneously for at least 2 seconds. The cluster display will change to 'TIME Err : 00', indicating that all recorded error codes have been deleted from the CPU controller memory. p. 232
What are the hydraulic pressure settings for the main relief valve on a Hyundai R130W-3?
The normal setting for the main relief valve on the boom, arm, and bucket is 320±10 kgf/cm², and 350±10 kgf/cm² when power boost is activated. The overload relief pressure for these functions is 380 kgf/cm². p. 328
How do I check the fault codes on a Hyundai R130W-3?
To check current or recorded error codes, touch the SELECT switch on the cluster twice while pressing the BUZZER STOP switch. The cluster will display the error codes received from the CPU controller. If there are multiple codes, each is displayed for 2 seconds. p. 232
What is the tightening torque for the engine mounting bolts on the Hyundai R130W-3?
The engine mounting bolts (Eng-bracket) require a tightening torque of 10.0±0.5 kgf·m (72.3±3.6 lbf·ft). The engine mounting bolts (Bracket-Frame) require 48.0±2.0 kgf·m (347±14.4 lbf·ft). p. 341
What is the recommended oil change interval for the axle on a Hyundai R130W-3?
The oil change interval for the axle is 500 hours for the first change, and every 1000 hours or at least once a year thereafter. p. 601
Will this Hyundai R130W-3 Service Manual download right away?
All 669 pages arrive as one searchable PDF at checkout. Read it at the desk, then take the phone out to the machine.
Can I print this Hyundai R130W-3 manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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