Yanmar 6SY Series Operation Manual page 7

Ask Your Authorized Yanmar
Marine Dealer or Distributor
For Help ............................................................. 75
Required EPA Maintenance
USA Only ........................................................... 76
EPA Requirements
USA Only ........................................................... 76
EPA Requirements................................................... 76
Conditions to Ensure Compliance with EPA
Emission Standards........................................... 76
Inspection and Maintenance.............................. 77
Tightening Fasteners ......................................... 77
Periodic Maintenance Schedule ........................ 78
Engines with Low Operating Hours ................... 78
Inspection and Maintenance of EPA
Emission-Related Parts............................... 80
Periodic Maintenance Procedures..................... 81
After Initial 50 Hours of Operation............... 81
Replace Engine Oil and Engine Oil
Filter Element........................................ 81
Clean the Centrifugal Engine Oil
Cleaner ................................................. 83
Functional Inspection............................ 85
Check and Adjust the Alternator Belt.... 86
Check Electronic Management
System (EMS) Operation...................... 86
Adjust Propeller Shaft Alignment .......... 86
Replace the Closed Crankcase
Ventilation Filter Element...................... 87
Every 50 Hours of Operation....................... 89
Drain or Replace the Fuel Filter
Element and Fuel Filter / Water Separator 89
Check the Battery Electrolyte Level (
Servicable Batteries Only) .................... 91
Every 250 Hours of Operation..................... 93
Adjust the Intake / Exhaust Valve
Clearance ............................................. 93
Check and Adjust the Unit Injector
Rocker Arms ......................................... 93
Drain the Fuel Tank .............................. 93
Check or Replace the Anodes (
Engines with Heat Exchangers)............ 94
Replace the Air Intake Filter ................. 94
Clean the Turbocharger........................ 95
Clean the Charge Air Cooler................. 95
6SY Operation Manual
TABLE OF CONTENTS
vii