Part of the Hyundai Repair Manuals.
Every one of the 142 pages in this Hyundai Robex 35-7 Service Manual PDF covers one machine: the Robex 35-7 crawler excavator, from main pump to track rollers. You get a full hydraulic schematic plus a wiring diagram for the electrical system, disassembly and assembly steps for the control valve, slew motor, travel motor, and hydraulic cylinders, and troubleshooting charts for both the travelling and slewing systems. Inside: maintenance standards for the idler, sprocket, and every roller on the undercarriage, so you know exactly when a worn part is out of tolerance. Torque the M8 (10.9) body bolts to 39 N-m and the M6 (8.8) hardware to 12.5 N-m; confirm the 12V, 60 AH battery before blaming the starter. No more crawling forums for mini-excavator specs. Bookmarked with a real text layer: jump to a section, search a spec, get wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Precautions on Maintenance | 6 | |
| Outline | 7-24 | Location of Serial Number, Name of Each Part, Dimensions and Specifications |
| Attachment | 25-32 | Standard of Maintenance |
| Engine | 33-44 | Inspection and Maintenance Procedures |
| Main Pump | 45-52 | Removing and Installing the Pump, Performance Test |
| Hydraulic Oil Filter | 53-58 | Hydraulic Oil Filter Specifications, Maintenance Procedure |
| Control Valve | 59-66 | Disassembly and Assembly, Structure of Relief Valve |
| Joystick (Pilot Valve) | 67-69 | |
| Pilot Valve (1) (Travel) | 70-73 | |
| Pilot Valve (2) (Swing, PTO) | 74-77 | |
| Pilot Valve (3) (Dozer) | 78-81 | |
| Slew Motor | 82-87 | |
| Travel Motor | 88-93 | Handling the Travel Motor |
| Hydraulic Cylinder | 94-99 | Disassembly and Assembly, Assembly Procedures |
| Swivel Joint | 100-103 | Disassembly and Assembly |
| Crawler | 104-111 | Structure and Operation, Standard of Maintenance, Disassembly and Assembly |
| Spring Case and Grease Cylinder | 112-115 | |
| Idler | 116-117 | |
| Sprocket | 118-121 | Disassembly and Assembly, Standard of Maintenance |
| Track Roller | 122-123 | |
| Carrier Roller | 124-125 | |
| Electrical Equipment | 126-129 | Structure and Function, Failure and Remedy |
| Troubleshooting | 130-142 | Travelling System Troubleshooting, Slewing System Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening torque of the bolt and nut (Body) M6 (8.8) | 12.5 Nm | p. 19 |
| Tightening torque of the bolt and nut (Body) M6 (10.9) | 16 Nm | p. 19 |
| Battery | 12V × 60 AH | p. 34 |
| Starter | 12V × 1.7 kW | p. 34 |
| Generator | 12V × 50A | p. 34 |
| Line filter (SP08) tightening torque | 20 N·m | p. 56 |
| Pilot filter tightening torque | 60~80 N·m | p. 56 |
| Main relief valve pressure adjustment | 17.7 MPa per rotation | p. 66 |
| Port relief valve pressure adjustment | 15.7 MPa per rotation | p. 66 |
| Engine Rated Power | 19.9 kW | p. 11 |
| Hydraulic Oil Tank Capacity | 50.5 L | p. 11 |
| Fuel Tank Capacity | 42 L | p. 11 |
