Part of the Hyundai Repair Manuals.
All 689 pages of this Hyundai R170W-7 shop manual PDF are aimed at one machine: the R170W-7 wheel excavator, from the main pump down to the bucket pins. You get full hydraulic circuit schematics covering main, pilot, single and combined operation, plus complete wiring diagrams with component locations and connector pinouts. Inside: a full troubleshooting section, operational performance tests, and step-by-step disassembly and assembly procedures for the main pump, control valve, swing motor, travel transmission, axles, steering, and every cylinder on the machine. Pull the transmission mounting bolts to 49.2 to 66.6 kgf·m (356 to 481 lbf·ft), and keep operating pressure between 6.5 kg/cm² (92 psi) and 26 kg/cm² (370 psi). No more chasing hydraulic gremlins through forum threads. Bookmarked and text-searchable; open it on your phone at the machine and jump straight to the spec.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 1-24 | Safety Hints, Specifications |
| Structure and Function | 25-119 | Pump Device, Main Control Valve, Swing Device, Travel Device |
| Hydraulic System | 120-152 | Hydraulic Circuit, Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 153-206 | Component Location, Electrical Circuit, Electrical Component Specification, Connectors |
| Mechatronics System | 207-245 | Outline |
| Maintenance Standard | 302-330 | Operational Performance Test, Major Components, Work Equipment |
| Precautions and Tightening Torque | 331-343 | Removal Work, Installation Work, Tightening Torque, Tools |
| Pump Device | 344-360 | Main Pump Disassembly, Regulator Disassembly, Main Pump Assembly, Regulator Assembly |
| Main Control Valve | 361-374 | Main Control Valve Removal, Main Control Valve Installation, Spool Disassembly, Holding Valve Disassembly, Main Relief Valve |
| Swing Device | 375-387 | Swing Motor Removal, Swing Motor Disassembly, Swing Motor Assembly, Reduction Gear Disassembly, Reduction Gear Assembly |
| Travel Motor and Transmission | 388-443 | Travel Motor Removal, Transmission Disassembly, Planetary Drive Disassembly, Declutch Unit Disassembly, Gear Box Control |
| Axle and Steering | 444-572 | Front Axle Removal, Rear Axle Removal, Differential Disassembly, Steering Assembly, Brake Lining Wearing Test |
| Cylinders and Work Equipment | 573-659 | Bucket Cylinder Removal, Arm Cylinder Removal, Boom Cylinder Removal, Dozer Cylinder Removal, Bucket Assembly |
| Component Mounting Torque | 660-689 | Introduction Guide, Engine System, Electric System, Hydraulic System, Power Train System, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Minimum operating pressure | 6.5kg/cm² (92psi) | p. 22 |
| Maximum operating pressure | 26kg/cm² (370psi) | p. 22 |
| Motor device weight | 61kg (135lb) | p. 375 |
| Reduction gear device weight | 180kg (396lb) | p. 388 |
| Tightening torque | 49.2~66.6kgf·m (356~481lbf·ft) | p. 388 |
| Tightening torque for M6x1.0 (Item 1, Hydraulic Components Mounting 1) | 1.05±0.2 kgf·m | p. 665 |
| Tightening torque for M6x1.0 (Item 2, Hydraulic Components Mounting 1) | 1.44±0.3 kgf·m | p. 665 |
| Engine oil quantity | 16.5 L | p. 20 |
| Main relief valve pressure | 330 kgf/cm2 | p. 20 |
| Swing speed | 11.5 rpm | p. 21 |
| Engine model | Mitsubishi S6S-DT | p. 20 |
| Battery capacity | 2 x 100 Ah | p. 20 |
