Need the factory specs for your Yanmar ViO10-2A? This 450-page service manual PDF covers the compact excavator from hydraulic pump rebuild to engine disassembly, straight from Yanmar factory data. Inside: a full hydraulic circuit schematic tracing fluid routing through every function, boom swing, blade, track gauge change, and PTO. You also get the complete wiring diagram with monitor and alarm system coverage, a torque table running from machine fasteners through engine hardware, and a troubleshooting section that walks fault isolation step by step. Set your M20 boom cylinder U-nut to 294.3-343.0 N-m; the M10 engine bracket bolts torque to 44.1-58.8 N-m. Your machine is down. Bookmarked by section and keyword-searchable: grab your tablet, walk to the machine, and start wrenching.
What's Inside This Yanmar ViO10-2A Manual
| System | Pages | Key Topics |
|---|---|---|
| Spine Title | 2 | - |
| General Cautions for Maintenance Work | 11-24 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 25-38 | 2-1 Specifications, 2-2 Outline Drawing and Working Area, 2-3 Weight List of Main Parts, 2-4 Lifting Capacity List |
| Service Standards | 39-58 | Machine Performance, Engine, Undercarriage (Rubber Crawler Specifications), Controls, Hydraulic Equipment (Hydraulic Cylinders) |
| Engine | 59-100 | Measurement |
| Hydraulic System | 101-136 | Outline (Control Valve Operation), Hydraulic Circuit Schematic (for Standard Type Machines) |
| Hydraulic Equipment | 137-308 | Hydraulic Pump (S/N: 28645 and Before, 28646 and Above), Control Valve, Pilot Valve, Cut-Off Valve, Swing Motor, Travel Motor (S/N: 22644 and Before, 22701 and Above) |
| Adjustment and Repair | 309-400 | Electrical Equipment and Engine of Machine (Parts Layout of Electrical Equipment, Monitor and Alarm Systems, Wiring Diagram, Circuit Description of Engine Start and Stop, Removal and Reinstallation of Engine, Removal and Reinstallation of Starter Motor, Removal and Reinstallation of Fuel Injection Pump, Removal and Reinstallation of Fuel Tank, Removal and Reinstallation of Radiator) |
| Periodic Inspection and Servicing | 401-404 | 8-1 List of Periodic Inspection and Servicing |
| Fuel, Lube Oil and Grease Recommended | 405-408 | Engine Oil, Travel Reduction Gear Oil, Hydraulic Oil, Fuel, Engine Cooling Water, Fuel Tank |
| Troubleshooting | 409-446 | 10-1 Non-Breakdowns, 10-2 Troubleshooting |
| Reference Data | 447-450 | 11-1 Specifications for Attachment |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine bracket (M10) tightening torque | 32.6 to 43.4 ft•lbf (44.1 to 58.8 N•m) | p. 53 |
| Track roller (M12) tightening torque | 57.9 to 72.3 ft•lbf (78.4 to 98.0 N•m) | p. 53 |
| Hydraulic hose SAE J517,100R1 (02) Inner dia. | 0.25 in. (6.3 mm) | p. 17 |
| Hydraulic hose SAE J517,100R1 (02) Working pressure | 2489 PSI (17.2 MPa) | p. 17 |
| Oil/water separator type | Mesh filter screen | p. 30 |
| LO filter type | Full flow filter | p. 30 |
| LO filter filtration area | 124.1 sq.in. (800 sq.cm) | p. 30 |
| Air cleaner type | Cyclone type | p. 31 |
| Air cleaner filtration area | 9.7 sq.ft. (0.9 m2) | p. 31 |
| Radiator hose band tightening torque | 2.2 ft•lbf (2.9 N•m) | p. 53 |
| Rubber crawler (A) wear limit | 0.31 in. (8 mm) | p. 47 |
| Idler & shaft (B) wear limit | 1.02 in. (26 mm) | p. 47 |
Yanmar ViO10-2A Common Problems This Manual Covers
Yanmar ViO10-2A engine won't start or cranks over slowly in cold weather p. 409
Check battery terminals for corrosion and confirm charge. Drain the fuel water separator mesh screen; contaminated fuel stops this engine cold. Test compression: if you read below 469 PSI (3.2 MPa) at 250 rpm per page 30, stop and inspect internally before chasing the electrical circuit.
Manual Section: Electrical System (Starting & Charging) TroubleshootingHydraulic functions sluggish or unresponsive, bucket digging force feels well below spec p. 409
Verify hydraulic oil level; the tank holds 3.78 Gals (14.3 L) and low level introduces air into the circuit. Check system relief pressure at the test port: spec is 2986 PSI (20.6 MPa) per page 27. Inspect all hose fittings for weeping joints and tighten or replace as needed.
Manual Section: Work Implement & Control TroubleshootingEngine temperature alarm triggers during operation, coolant level drops or hoses show damage p. 409
Inspect coolant level and top off as needed. Check all radiator hose clamp bands; torque to 2.2 ft•lbf (2.9 N•m) per page 53. Look for cracks or swelling at every hose bend. Clean radiator fins of packed mud and debris, then cycle the engine and monitor the temp gauge.
Manual Section: Engine & Hydraulic System General TroubleshootingMachine pulls hard left or right, travel speed drops noticeably on both tracks p. 409
Inspect rubber crawler lug height; wear limit is 0.31 in. (8 mm) per page 47. Measure sprocket tooth depth against the 0.47 in. (12 mm) wear limit on page 48. Compare readings side-to-side; asymmetric wear is usually the pull source. Verify track roller M12 bolt torque at 57.9 to 72.3 ft•lbf (78.4 to 98.0 N•m) per page 53.
Manual Section: Travel System (Movement & Steering) TroubleshootingOil seeping from cylinder rod seals or hose fittings after recent hydraulic service p. 11
Clean the area and identify the exact leak source before condemning parts. On hose connections, confirm fittings are rated for working pressure: SAE J517,100R1 hoses handle up to 2489 PSI (17.2 MPa) per page 17. Inspect cylinder rod seals for scoring; seal handling and reinstallation cautions begin at page 11.
Manual Section: General Cautions for Maintenance WorkFrequently Asked Questions
When was the Yanmar ViO 10-2A manufactured?
The first edition of the Service Manual for the Yanmar ViO10-2A excavator was published in November 2014. This indicates the manual's release date, which is often close to the product's market introduction or a significant update.
How much does the Yanmar ViO 10-2A weigh?
The operating mass of the Yanmar ViO10-2A excavator with a canopy and rubber crawler is 2183 lbs (990 kg). The base machine dry mass for the same configuration is 1698 lbs (770 kg).
What are the transport dimensions of the Yanmar ViO 10-2A mini excavator?
The transport dimensions for the Yanmar ViO10-2A mini excavator are: overall length in transportation position is 118.5 inches (3010 mm), overall height in transportation position (for canopy) is 55.9 inches (1420 mm), and the full machine width (maximum/minimum) is 39.4 inches (1000 mm) / 32.7 inches (830 mm).
How do I reset the Yanmar ViO10-2A?
The manual does not provide a general "reset" procedure for the entire Yanmar ViO10-2A machine. However, it mentions resetting specific components like the relief valve pressure (e.g., on page 132, section "5-4-2 Circuit Relief Valves", "Reset the relief valve pressure") or the horsepower setting.
Is this Service Manual a digital download?
A 450-page Service Manual in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print specific sections of this Service Manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Does this Yanmar ViO10-2A Service Manual cover the hydraulic system?
Yes, this Yanmar ViO10-2A Service Manual includes hydraulic system diagrams, circuit schematics, and component specifications.
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