Part of the Hyundai Repair Manuals.
Need factory data for your R35Z-7 mini excavator? This 415-page Hyundai R35Z-7 service manual PDF covers the whole machine: pump device, main control valve, swing and travel devices, RCV lever, turning joint, and undercarriage. Inside you get full hydraulic circuit schematics with main and pilot circuit routing, complete electrical wiring diagrams with connector pinouts, and a troubleshooting section that walks both hydraulic and electrical faults. A full disassembly and assembly section pairs with component mounting torque tables for the engine, structure, and work equipment. Set travel motor braking torque at 6.5 kgf·m (47 lbf·ft), then swap the hydraulic return filter every 500 hours with a 10-micron element. Your excavator is down and every idle hour costs money. Bookmarked chapters and a live text layer mean you search a spec, find it, and get back to wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 11-31 | Safety Hints, Specifications |
| Structure and Function | 32-102 | Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever |
| Hydraulic System | 103-133 | Hydraulic Circuit, Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 134-182 | Component Location, Monitoring System, Electrical Circuit |
| Troubleshooting | 183-220 | Before Troubleshooting, Hydraulic and Mechanical System |
| Maintenance Standard | 221-259 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 260-404 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 405-415 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Braking torque (travel motor) | 6.5kgf·m (47lbf·ft) | p. 30 |
| Battery | 1 × 12V × 55Ah(5h rating) | p. 29 |
| Starting motor | 12V-1.2kW | p. 28 |
| Filter filtration accuracy | 10 μm or less | p. 38 |
| Filter change interval | 500 hours | p. 39 |
| Pilot relief valve setting pressure | 30kgf/cm2 | p. 108 |
| Swing motor mounting bolt (M14 × 2.0) | 19.6 ± 2.9 kgf·m (142 ± 21.0 lbf·ft) | p. 264 |
| Travel motor mounting bolt (M12 × 1.75) | 13.8 ± 2.0 kgf·m (100 ± 14.0 lbf·ft) | p. 264 |
| Counterweight mounting bolt (M20 × 2.5) | 57.8 ± 6.4 kgf·m (418 ± 46.3 lbf·ft) | p. 264 |
| Operating weight | 3650 kg | p. 21 |
