Table Of Contents - Yanmar 3TNV Series Service Manual

1. General ....................................................................................................... 1
1.1 Engine Nomenclature .............................................................................................................. 1
1.2 Specifications........................................................................................................................... 1
1.3 Fuel Oil, Lubricating Oil and Cooling Water........................................................................... 14
1.3.1 Fuel oil....................................................................................................................................14
1.3.2 Lubricating oil .........................................................................................................................15
1.3.3 Cooling water .........................................................................................................................15
1.4 Engine External Views........................................................................................................... 16
Structural Description ............................................................................................................. 17
1.5
1.6 Exhaust gas emission regulation........................................................................................... 18
1.6.1 The Emission Standard in USA ..............................................................................................18
1.6.2 Engine identification ...............................................................................................................19
1.6.3 Guarantee Conditions for the EPA Emission Standard ...........................................................20
2. Inspection and Adjustment........................................................................ 22
2.1 Periodic Maintenance Schedule ............................................................................................ 22
2.2 Periodic Inspection and Maintenance Procedure .................................................................. 23
2.2.1 Check before Daily Operation ................................................................................................23
2.2.2 inspection after initial 50 hours operation ...............................................................................25
2.2.3 Inspection every 50 hours ......................................................................................................28
2.2.4 Inspection every 250 hours or 3 months ................................................................................32
2.2.5 Inspection every 500 hours or 6 months ................................................................................35
2.2.6 Inspection every 1,000 hours or one year ..............................................................................37
2.2.7 Inspection every 2000 hours or 2 years .................................................................................46
2.3 Adjusting the no-load maximum or minimum speed.............................................................. 49
2.4 Sensor Inspection.................................................................................................................. 50
2.4.1 Oil pressure switch .................................................................................................................50
2.4.2 Thermo switch ........................................................................................................................50
2.5 Water leak check in cooling water system............................................................................. 50
2.6 Radiator cap inspection ......................................................................................................... 51
2.7 Thermostat Inspection ........................................................................................................... 51
2.8 Adjusting Operation ............................................................................................................... 52
2.9 Long storage.......................................................................................................................... 52
3. TROUBLESHOOTING .............................................................................. 53
3.1 Preparation before troubleshooting ....................................................................................... 53
3.2 Quick Reference Table for Troubleshooting .......................................................................... 54
3.3 Troubleshooting by measuring Compression Pressure......................................................... 57
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