Periodic Maintenance Schedule - Yanmar 6LY3 series Service Manual

PERIODIC MAINTENANCE

PERIODIC MAINTENANCE SCHEDULE

Daily and periodic maintenance is important to keep the engine in good operating condition. The following is
a summary of maintenance items by periodic maintenance intervals. Periodic maintenance intervals vary
depending on engine application, loads, diesel fuel and engine oil used and are hard to establish definitively.
The following should be treated only as a general guideline.
: Check
System
Whole Visually inspect the engine.
Check the fuel level.
Drain the fuel tank.
Drain the filter and the water
separator.
Fuel System Replace the filter element.
Check the injection spray
pattern.
Overhaul the fuel feed pump.
Replace the fuel hoses.
Check the oil
level.
Change the
Lubricating
oil.
System
Replace the oil filter element.
Clean the oil cooler.
Check the seawater outlet.
Check the coolant level.
Check the seawater pump
impeller.
Coolant
Replace the engine coolant.
System
Clean and check the
seawater and coolant
passages.
Clean the seawater and
coolant system.
Replace the zinc anode plug.
* Whichever comes first.
4-4
: Replace : Contact your authorized Yanmar Marine dealer or distributor
Before
Item
Starting
Crankcase
Crankcase
During
operation
When the Long Life Coolant (LLC) is used of a specified type (See Check the
Coolant Level on page 4-7), replacement period of two years can be obtained.
© 2007 Yanmar Marine International
Periodic Maintenance Schedule
Every 50
Every 250 Every 500
Hours or
Hours or
One
One Year*
Month*
Initial
Every two years or 2,000 hours of operation.*
Initial
Initial
Every year
6LY3 Service Manual
Every 1000 Every 2000
Hours or Hours or
2 Years* 4 Years*
Hours or
8 Years*