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. CAUTION! Establish a periodic maintenance plan according to the
engine application and make sure you perform the required periodic maintenance
at intervals indicated. Failure to follow these guidelines will impair the engine’s
safety and performance characteristics, shorten the engine’s life and may affect the
warranty coverage on your engine. See your authorized Yanmar Marine dealer or
distributor for assistance when checking items marked with a ●.
: Check or Clean ◊: Replace ●: Contact your authorized Yanmar Marine dealer or distributor
System
Item
Periodic Maintenance Interval
Daily
Every 50
hours or
monthly
which-
ever
comes
first
Every
125
hours or
6
months
which-
ever
comes
first
Every
250
hours
or one
year
which-
ever
comes
first
Every
500
hours
or 2
years
which-
ever
comes
first
Every
1000
hours
or 4
years
which-
ever
comes
first
Every
1250
hours
or 5
years
which-
ever
comes
first
Whole
Visual
inspection
of engine
exterior
Fuel
System
Check the
fuel level
and refill if
necessary
Drain
water and
sediment
from fuel
tank
Drain the
fuel / water
separator
Replace
the fuel
filter
element
◊
Initial 50
◊
Check the
fuel
injection
timing
*
●
*
Check the
fuel
injector
pressure
and nozzle
spray
pattern
*
●
Initial
250
●
*
PERIODIC MAINTENANCE
54
6LPA Series Operation Manual
© 2007 Yanmar Marine International
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