Part of the Hyundai Repair Manuals.
Looking for the Hyundai R35Z-7A shop manual PDF? All 415 pages cover the R35Z-7A Crawler Excavator, from the hydraulic pump and main control valve to the swing and travel devices. You get full electrical circuit diagrams with connector pinouts, complete hydraulic schematics for the main and pilot circuits, and a troubleshooting section that walks both hydraulic and electrical faults. There's a full disassembly and assembly section for the pump device, travel motor, turning joint, and boom, arm, and bucket cylinders, plus mounting torque tables for every system. Change the hydraulic filter every 500 hours, and hold pump piston-to-block clearance at 0.050 mm before you sign off on a rebuild. Your excavator is down. Get factory numbers, not forum guesses. Bookmarked with a live text layer; pull it up on your phone and jump straight to the spec you need.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 11-30 | Safety, Specifications |
| Structure and Function | 31-100 | Hydraulic Pump, Main Control Valve, Swing Device, Travel Device, Rcv Lever |
| Hydraulic System | 101-130 | Main Circuit, Pilot Circuit, Single Operation, Combined Operation |
| Electrical System | 131-178 | Component Location, Monitoring System, Electrical Circuit |
| Troubleshooting | 179-215 | Before Troubleshooting, Hydraulic and Mechanical System |
| Maintenance Standard | 216-253 | Operational Performance Test, Major Components, Track and Work Equipment |
| Disassembly and Assembly | 254-397 | Precaution, Tightening Torque, Pump Device, Main Control Valve, Swing Device, Travel Device, Rcv Lever, Turning Joint |
| Component Mounting Torque | 398-415 | Introduction Guide, Engine System, Electric System, Undercarriage, Structure, Work Equipment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Final drive gear oil capacity | 0.5 x 2 L | p. 30 |
| Filter filtration accuracy | 10 μm or less | p. 36 |
| Filter change interval | 500 hours | p. 37 |
| Clearance between the piston outside dia and cylinder block inside dia | 0.050mm | p. 236 |
| Axial play of the piston and piston shoe | 0.2mm | p. 236 |
| Horizontal width of idler guide (Track frame) | 178 mm | p. 251 |
| Recoil spring (Free length) | 286.5 mm | p. 251 |
| Tightening torque for socket head bolt (3) on reduction gear assembly | 13 ± 0.7 kgf·m (94.4 ± 5 lbf·ft) | p. 315 |
| M10 x 1.5 bolt torque | 6.9 ± 1.4 kgf·m | p. 404 |
| Operating Weight | 3650 kg | p. 20 |
| Engine Oil Quantity | 6.7 L | p. 27 |
| Main Pump Rated Oil Flow | 2 x 38.5 L/min | p. 27 |
