Part of the Yanmar Repair Manuals.
Hunting for a reliable Yanmar ViO25-6 service manual pdf? This is the factory original: 565 pages covering every major system on the ViO25-6 compact excavator, from engine internals to full hydraulic circuit operation. Inside, you get wiring diagrams for the engine start/stop circuits and automatic deceleration system, plus hydraulic schematics that trace fluid routing through the pump, control valve, pilot valve, swing motor, and travel motor. Open to the service standards section for a complete tightening torque table, pressure adjustment procedures, and an error code list tied directly to electric system diagnostics. Torque the M16x35 track roller mounting bolts to 206-245 N•m; your suction filter specs out at 697 sq.cm and 150-micron filtration accuracy. Your machine is down and every hour counts. Search by keyword, jump straight to the spec, and fix it right the first time. Bookmarked and ready on any device.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 12-23 | 1-1 Correct Work, 1-2 Safety Precautions, 1-3 Preparations, 1-4 Cautions for Disassembly and Reassembly, 1-5 Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 24-50 | 2-1 Specifications, 2-2 Outline Drawing and Working Area, 2-3 Weight List of Main Parts, 2-4 Lifting Capacity List, 2-5 Specifications for Attachment |
| Service Standards | 51-82 | 3-1 Machine Performance, 3-2 Engine, 3-3 Undercarriage, 3-4 Controls, 3-5 Hydraulic Equipment, 3-6 Implement, 3-7 List of Tightening Torque, 3-8 Pressure Adjustment |
| Engine | 83-226 | 4-1 Safety, 4-2 Engine, 4-3 Fuel System, 4-4 Cooling System, 4-5 Lubrication System, 4-6 Starter Motor, 4-7 Alternator, 4-8 Electric Wiring |
| Electric System | 227-254 | 5-1 Electric Equipment of Machine, 5-2 Circuit Description of Engine Start and Stop, 5-3 Automatic Deceleration System, 5-4 Error Code List |
| Hydraulic System | 255-454 | 6-1 Outline, 6-2 Circuit Operation, 6-3 Hydraulic Pump, 6-4 Control Valve, 6-5 Pilot Valve, 6-6 Swing Motor, 6-7 Travel Motor, 6-8 Proportional Solenoid Valve |
| Adjustment and Repair | 455-552 | 7-1 Engine and Electric Equipment, 7-2 Undercarriage, 7-3 Controls, 7-4 Swing Bearing, 7-5 Hydraulic Equipment, 7-6 Work Implements, 7-7 Cabin |
| Troubleshooting | 553-565 | 8-1 Non-Breakdowns, 8-2 Quick Reference Table for Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track roller mounting bolt (M16x35) | 206 to 245 N•m | p. 69 |
| Suction filter filtration area | 697 sq.cm | p. 28 |
| Suction filter filtration accuracy | 150 u | p. 28 |
| Oil/water separator type | Mesh filter | p. 31 |
| Water separator inspection interval | Daily | p. 38 |
| Fan belt size | 36 | p. 31 |
| Fan belt replacement interval | Every 2000h / Every two years | p. 38 |
| Coolant hose replacement interval | Every 2000h / Every two years | p. 38 |
| Cooling water hose clip 41 tightening torque | 2.45 to 2.94 N•m | p. 68 |
| Battery type (JIS) | 65B24L | p. 32 |
| Battery voltage - 5 hrs rate capacity | 12 V - 36 Ah | p. 32 |
| Overall length (Transportation position) | 4110 mm | p. 24 |
