Yanmar 6LY3 series Operation Manual page 7

Periodic Maintenance Schedule ........................ 93
Inspection and Maintenance of EPA
Emission-Related Parts............................... 95
Periodic Maintenance Procedures..................... 96
After Initial 50 Hours of Operation............... 96
Replace Engine Oil and Engine
Oil Filter ................................................ 96
Check the Electronic Control
System Operation ................................. 98
Adjust the Propeller Shaft Alignment .... 98
Every 50 Hours of Operation....................... 99
Drain Fuel Filter and Fuel Filter / Water
Separator .............................................. 99
Check the Battery ............................... 101
Adjust Alternator V-Belt Tension......... 103
Every 250 Hours of Operation................... 104
Check the Fuel Injector Spray Pattern 104
Adjust Intake / Exhaust Valve
Clearance (1st Time) .......................... 104
Drain the Fuel Tank ............................ 105
Replace the Fuel Filter Element ......... 106
Replace the Engine Oil (Crankcase) .. 106
Replace the Engine Oil Filter
Element............................................... 106
Check the Seawater Pump Impeller ... 106
Replace the Anode ............................. 107
Clean the Air Intake Silencer .............. 107
Clean the Exhaust / Water Mixing
Elbow .................................................. 108
Clean the Turbocharger Blower.......... 108
Flush the Aftercooler........................... 108
Check the Wiring Connectors ............. 108
Tighten All Major Nuts and Bolts ........ 108
Check / Replace the Flexible Engine
Mounts ................................................ 108
Replace Engine Coolant ..................... 109
Every 500 Hours of Operation................... 109
Replace the Seawater Pump Impeller 109
Adjust the Propeller Shaft Alignment .. 109
Check Alternator Belt Tension ............ 109
6LY3 Operation Manual
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