Part of the Yanmar Operator Manuals.
The alarm buzzer sounds somewhere off the coast, a warning lamp lights on the panel, and there is nobody aboard to ask. Yanmar wrote publication 499613-02820, the factory operation manual for the 6LY2-STE marine diesel, for exactly that moment: 51 pages in English, delivered here as a PDF download.
Inside are the engine specifications, including the rated 309 kW at 3300 rpm at the crankshaft, the correct fuel oil, lube oil, and cooling water, the starting and stopping procedure, and lube oil supply for the Yanmar KMH6A1 marine gear. The Maintenance & Inspection section lays out every service interval from the first 50 hours through the 2000 hour checks, and Troubleshooting decodes the buzzer and warning lamps.
Because it is a PDF, it lives on your phone or in a printed binder, wherever the engine happens to be: in the boat, at the dock, or on a stand.
Complete the set for your 6LY2-STE
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 5-7 | |
| For Your Safety | 8-11 | |
| Explanation of Product | 12-20 | Control Equipment |
| Operation | 21-35 | Fuel Oil, Lube Oil & Cooling Water, Before Initial Operation, How to Operate |
| Maintenance & Inspection | 36-47 | Periodic Inspection Items |
| Troubleshooting | 48-49 | |
| System Diagrams | 50-51 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Impeller replacement interval | every 2000 hours | p. 46 |
| Fuel filter element replacement interval | every 500 hours | p. 44 |
| Max. output at crankshaft | 309 kW / 3300 rpm | p. 13 |
| Recommended Battery Capacity | 120AHX1pc | p. 13 |
| Tightening torque for M10x1.5 bolts | 5.0±0.5 Kgf-m | p. 36 |
| V-belt deflection | 8~10mm | p. 45 |
| Engine Lube Oil Change Interval | Every 250 hours | p. 37 |
