Part of the Yanmar Repair Manuals.
Put a pressure gauge on a ViO10 and you need a number to test against; this Yanmar ViO10 (EP) service manual gives you that number, then walks the whole machine end to end: the 3TNE68-EBVB engine, the hydraulic system and its cylinders, the undercarriage, the controls, and a full set of wiring diagrams across 372 pages.
A machine this small often works far from any dealer, and when a track goes slack or the boom starts to settle there is nobody standing next to you to ask. The Service Standards chapter answers with measurements instead of opinions: rubber crawler specifications, hydraulic cylinder standards, and tightening torques for the machine and engine.
Follow the Troubleshooting section from symptom to cause, pull the exact spec, make the repair, and put the excavator back on the clock. The PDF prints cleanly, so the pages that matter can live in the toolbox.
Complete the set for your ViO10 (EP)
- Operator Manual: Yanmar ViO10 Operator Manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 8-19 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 20-31 | Model Specifications, Engine Output, Operating Weight, Bucket Capacity, Relief Valve Pressure (20.6 MPa), Travel Speed, Gradeability |
| Service Standards | 32-49 | Machine Performance, Engine, Undercarriage (Rubber Crawler Specifications), Controls, Hydraulic Equipment (Hydraulic Cylinders) |
| Engine | 50-91 | Engine Disassembly and Reassembly, Cylinder Head, Piston and Rings, Crankshaft Bearings, Fuel Injection Pump, Measurement Procedures |
| Hydraulic System | 92-97 | Outline (Control Valve Operation), Hydraulic Circuit Schematic (for Standard Type Machines) |
| Hydraulic Circuit Schematic | 98-124 | Main Relief Valve Settings, Control Valve Layout, Cylinder Port Connections, Pilot Circuit, Return Filter, Oil Cooler Circuit |
| Hydraulic Equipment | 125-241 | Hydraulic Cylinders (Boom/Arm/Bucket), Travel Motor Disassembly, Swing Motor, Control Valve Overhaul, Pilot Valve, Boom Cylinder U-Nut Torque (294–343 N·m) |
| Adjustment and Repair | 242-249 | Rubber Crawler Tension (8–13 Mm), Relief Pressure Adjustment, Hydraulic Oil Level, Travel Motor Brake Release, Safety Relay Insulation (100 MΩ) |
| Wiring Diagram | 250-327 | Electrical Circuit Schematics, Connector Locations, Fuse Box Layout, Safety Relay, Engine Control Wiring, Monitor Panel Circuit |
| Periodic Inspections and Servicing | 328-330 | Daily/50h/250h/500h Service Intervals, Hydraulic Oil Change, Engine Oil Change, Filter Replacement, Grease Points, Crawler Tension Check |
| Fuel, Lube Oil and Grease Recommended | 331-332 | Engine Oil SAE10W30 Cd (3.0 L), Hydraulic Oil Iso VG46, Grease Type, Fuel Specifications, Coolant Mix Ratio |
| Troubleshooting | 333-369 | Engine Starting Failure, Hydraulic Drift, Travel Deviation, Overheating, Boom/Arm/Bucket Weakness, Electrical Fault Diagnosis |
| Reference Data | 370-372 | Tightening Torque Table, Conversion Factors, Hydraulic Oil Capacity, Coolant Capacity, Service Parts List |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Sprocket tightening torque | 32.6 to 43.4 ft•lbf (44.1 to 58.8 N•m) | p. 47 |
| Wear limit for oil seal portion | 0.0010 in. (0.025 mm) or more | p. 239 |
| Working pressure for high pressure rubber hose (Hose dia. 02) | 2489 (17.2) PSI (MPa) | p. 15 |
| Crawler Tension Adjustment (H) | 0.31 to 0.51 in. (8 to 13 mm) | p. 266 |
| Sprocket wear limit (A) | 0.47 (12) in. (mm) | p. 42 |
| Safety relay insulation resistance (R) | 100 MΩ | p. 247 |
| Engine oil pressure switch working pressure | 5.69 to 8.53 PSI (0.04 to 0.06 MPa) | p. 245 |
| Hydraulic oil temperature (measuring condition) | 122 to 140 °F (50 to 60 °C) | p. 33 |
| Pilot valve oil leak (Control lever in neutral condition) | over 1.22 (20) cu.in. (cu.cm) / min. | p. 185 |
| Engine Model | 3TNE68-EBVB | p. 25 |
| Total Displacement | 47.8 cu.in. (784 cu.cm) | p. 25 |
| Rated Output / Engine Speed | 11.5 HP/2000 rpm | p. 25 |
