Part of the Hyundai Repair Manuals.
Need the factory data for your Hyundai R170W-9 wheeled excavator? This 682-page Hyundai R170W-9 service manual PDF covers the whole machine, from the main pump and control valve to the powershift transmission, front and rear axles, and every work equipment cylinder. Inside: factory hydraulic circuit schematics, electrical wiring diagrams with connector pinouts, page after page of troubleshooting charts for the hydraulic, electrical, and mechatronics systems, and tightening torque tables for every mounting bolt. You also get the self-diagnostic system breakdown for chasing fault codes right on the monitor. Main relief pressure sits at 350 kgf/cm2 and the MCU raises it to 380 kgf/cm2 under power boost; pilot pressure is specced at 40 kgf/cm2. No more chasing wiring faults with a multimeter and a prayer. Bookmarked with a full text layer: search any spec, jump to any section, fix the machine.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-33 | Safety Hints, Specifications |
| Structure and Function | 34-119 | Pump Device, Main Control Valve, Swing Device, Travel Motor, Rcv Lever, Accelerator Pedal, Brake Pedal, Transmission |
| Hydraulic System | 120-152 | Hydraulic Circuit, Main Circuit, Pilot Circuit |
| Electrical System | 153-208 | Component Location, Electrical Circuit |
| Mechatronics System | 209-241 | Outline, Mode Selection System, Automatic Deceleration System |
| Troubleshooting | 242-322 | Before Troubleshooting, Hydraulic and Mechanical System, Electrical System, Mechatronics System |
| Maintenance Standard | 323-351 | Operational Performance Test, Major Components, Work Equipment |
| General Precautions and Tightening Torque | 352-358 | Removal Work, Installation Work, Tightening Torque Charts, Pipe and Hose Connections |
| Pump Device | 359-381 | Removal and Installation, Main Pump Structure, Regulator Disassembly, Assembly Procedures |
| Main Control Valve | 382-396 | Removal and Installation, Main Control Valve Structure, Disassembly of Spools, Holding Valve Operation |
| Swing Device | 397-411 | Swing Motor Structure, Reduction Gear Disassembly, Swing Parking Brake, Maintenance Standards |
| Transmission | 412-444 | Reduction Gear Assembly, Powershift Transmission, Downshift Interlock, Brake and Clutch Maintenance |
| Front and Rear Axles | 445-582 | Axle Removal, Steering Cylinder, Differential Assembly, Brake Lining Wear Test |
| Work Equipment | 583-666 | Bucket Cylinder, Arm Cylinder, Boom Cylinder, Dozer and Outrigger Cylinders |
| Component Mounting Torque | 667-682 | Introduction Guide, Engine System, Electric System, Power Train System, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main relief valve setting pressure | 350 kgf/cm2 | p. 128 |
| Main relief valve setting pressure (power boost) | 380 kgf/cm2 | p. 128 |
| Bypass relief valve opening pressure (full-flow filter) | 1.5 kgf/cm2 | p. 123 |
| Drain filter bypass relief valve opening pressure | 1.5 kgf/cm2 | p. 124 |
| Battery | 12V × 100Ah (2EA) | p. 181 |
| Fuse box | 30A | p. 177 |
| Air cleaner resistance | MAX 1Ω | p. 271 |
| Load check valve plug tightening torque | 6~7 kgf·m (43.4~50.6 lbf·ft) | p. 394 |
| Negative control relief valve plug tightening torque | 8~9 kgf·m (57.8~65.1 lbf·ft) | p. 394 |
| Tightening torque for M8x1.25 | 2.5±0.5 kgf·m | p. 669 |
| Operating weight | 17300 kg | p. 22 |
| Swing speed | 11.0 rpm | p. 22 |
