Part of the Yanmar Repair Manuals.
Need the factory procedures for your Yanmar ViO26-6 excavator? This 469-page service manual puts hydraulic circuit schematics, wiring diagrams, and full engine rebuild procedures directly in your hands. Inside: fluid routing for the main pump, control valve, swing motor, and travel motor; circuit descriptions covering engine start/stop and the automatic deceleration system; error code lists; and pressure adjustment procedures for every relief valve on the machine. You also get torque tables for hydraulic fittings and a step-by-step section on fuel injection timing and valve clearance adjustment. The main system relief sets to 21.0 MPa, boom circuit relief to 24.0 MPa at the rod end; torque your track roller bolts to 206-245 N•m. Your ViO26-6 is down and every hour costs you. Bookmarked by section and keyword-searchable, it opens on any device. Pull it up on your tablet and start wrenching.
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 10-21 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 22-47 | 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 | 48-79 | Machine Performance, Engine, Undercarriage (Rubber Track Specifications, Steel Track Specifications, Common Specifications of Steel & Rubber Crawlers), Controls |
| Engine | 80-215 | 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 | 216-239 | 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 | 240-357 | 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 |
| Adjustment and Repair | 358-453 | 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 | 454-461 | 8-1 Non-Breakdowns |
| Page Vierge | 462-469 | 8-2 Quick Reference Table for Troubleshooting |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| System relief set pressure P1 | 21.0 MPa | p. 26 |
| Circuit relief set pressure Boom (at rod end) | 24.0 MPa | p. 26 |
| Track roller bolt tightening torque | 206 to 245 N•m | p. 69 |
| Hydraulic hose (Suction hose x Tube) hose clip tightening torque | 2.6 to 2.7 N•m | p. 68 |
| Hydraulic hose (Cooling water hose) hose clip tightening torque | 2.5 to 3.5 N•m | p. 68 |
| Suction filter filtration area | 1120 cm² | p. 28 |
| Suction filter filtration accuracy | 75 u | p. 28 |
| Fuel filter filtration area | 432 cm² | p. 31 |
| LO filter filtration area | 800 cm² | p. 31 |
| LO filter valve opening pressure | 0.08 to 0.12 MPa | p. 31 |
| Rubber track standard width | 250 mm | p. 29 |
| Rubber track lug height | 24 mm | p. 29 |
