Yanmar 6SY Series Operation Manual page 87

: Check : Replace : Contact your authorized Yanmar marine dealer or distributor
System
Whole Visual inspection of engine exterior
Fuel System Check the fuel leve, and refill
Drain the fuel tank
Drain the fuel filter and the
fuel / water separator
Replace the fuel filter element
Check the unit injector rocker arms
Check the unit injector spray
pattern
Overhaul and check fuel feed
pump
Replace rubber fuel hoses
Lubricating Check the engine oil
System level
Replace the engine oil Crankcase
Replace the engine oil filter
element
Clean engine oil cooler
Cooling
System Seawater outlet
Check coolant level
Check the seawater pump impeller
Replace the engine coolant
Clean and check the seawater
passages
Clean seawater and engine cooling
system
Check or replace anodes
Air Intake and Clean the air intake silencer
Exhaust
Clean the exhaust/water mixing
System
elbow
Clean the turbocharger
Flush charge air cooler
Electrical Check the alarm indicators
System
Check the electrolyte level in the
battery
Adjust / replace the tension of the
alternator belt
Check the wiring connectors
Engine
Check for leakage of fuel, engine
Cylinder Head
oil and engine coolant
and Block
Tighten all major nuts and bolts
Adjust intake / exhaust valve
clearance
6SY Operation Manual
Item Daily
Replace every 2 years or every 2000 hours, whichever comes first.
Crankcase
During
Operation
When long life coolant is used, replace every two years. See Engine Coolant
After
starting
PERIODIC MAINTENANCE
Periodic Maintenance Interval
Every Every 250 Every 500
50 hrs. or hrs. or one
one month year
whichever whichever whichever
comes comes
first first
1
(1st time)
1
(1st time)
(1st time)
(1st time)
Every year
Specifications on page 41.
1
(1st time)
(1st time)
Every 1000
hrs. or 2 hrs. or 4 2000 hrs.
years years or 8 years
whichever whichever
comes comes comes
first first
1
1
Every
first
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