Periodic Maintenance Schedule - Yanmar 4JH45 Operation Manual

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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.
NOTICE
Establish a periodic maintenance plan according to the engine application and make sure
to perform the required periodic maintenance at the 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.
Consult authorized Yanmar Marine dealer or distributor for assistance when checking
items marked with a ●.
: Check or Clean : Replace ●: Consult your authorized Yanmar Marine dealer or distributor
System
Whole Visual inspection of engine
exterior
Fuel Check the fuel level and refill
System if necessary
Drain water and sediment
from fuel tank
Drain the fuel/water
separator
Replace the fuel filter
element
Lubricating Check the
System lube oil level
Replace the
lube oil
Replace the
oil filter
element
JH Series Operation Manual
Item
Daily
See Daily
Checks
on
page 84.



Engine

Marine Gear
Engine
Marine Gear
Engine
Marine Gear
(if equipped)
PERIODIC MAINTENANCE
Periodic Maintenance Interval
Every 50 Every 250
hours or hours or 1
monthly year which-
which- ever ever comes
comes first first
 
Initial 50


 
Initial 50
 
Initial 50
 
Initial 50
 
Initial 50
Every 500 Every 1000
hours or 2 hours or 4
years years
which- ever which- ever
comes first comes first
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