Yanmar 3JH4E Operation Manual page 65

○: Check or Clean ◊: Replace ●: Contact your authorized Yanmar marine dealer or distributor
System Item
Air Intake Clean intake silencer (air
and cleaner) element
Exhaust
Clean or replace the
System
exhaust / water mixing
elbow
Clean the turbocharger* -
4JH4-TE or 4JH4-HTE only
Check diaphragm assembly
3JH4E / 4JH4AE only
Electrical Check the alarm and
System indicators
Check the electrolyte level in
the battery
Adjust the tension of the
alternator V-belt or replace
V-belt
Check the wiring connectors
Engine Check for leakage of fuel,
Cylinder engine oil and engine
Head and coolant
Block
Tighten all major nuts and
bolts
Adjust intake / exhaust valve
clearance
Miscellane- Check the remote control
ous Items cable operation
Adjust the propeller shaft
alignment
Replace rubberized hoses
(fuel and water)
*
For EPA requirements, see Inspection and Maintenance of EPA Emission-Related Parts on page 60.
Note: These procedures are considered normal maintenance and are performed at the
owner's expense.
JH4 Series Operation Manual
PERIODIC MAINTENANCE
Periodic Maintenance Interval
Daily Every 50
hours or
monthly
which-
ever
comes
first
○
○
○
Initial 50
○
After
starting
●
Initial 50
○ ○
Initial 50
●
Initial 50
Replace every 2 years or every 2000 hours, whichever comes
Every Every
250 500
hours or hours or
one year 2 years
which- which-
ever ever
comes comes
first first
○
○ ◊
●
○
○
●
first.
Every
1000
hours or
4 years
which-
ever
comes
first
●
◊
●
●
●
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