PERIODIC MAINTENANCE
68 JH Series Operation Manual
Note: These procedures are considered normal maintenance and are performed at the owner’s expense.
Air Intake
and
Exhaust
System
Clean intake silencer (air
cleaner) element
Clean or replace the
exhaust / water mixing elbow
Wash the turbocharger
blower - 4JH4-TE,
4JH4-HTE1or 4JH4-HTE
only
●
Check diaphragm assembly
3JH5E / 4JH5E only
●
Electrical
System
Check the alarm and
indicators
Check the electrolyte level in
the battery
Adjust the tension of the
alternator V-ribbed belt or
replace V-ribbed belt
Initial 50
Check the wiring connectors
Engine
Cylinder
Head and
Block
Check for leakage of fuel,
engine oil and engine coolant
After
starting
Tighten all major nuts and
bolts
●
Adjust intake / exhaust valve
clearance
● Initial 50 ●
Miscellane
ous Items
Check the remote control
cable operation
Initial 50 ●
Adjust the propeller shaft
alignment
●Initial 50 ●
Replace rubberized hoses
(fuel and water)
Replace every 2 years.
* For EPA requirements, see
Inspection and Maintenance of EPA Emission-Related Parts
on page 69
.
: Check or Clean : Replace ●: Contact your authorized Yanmar Marine dealer or distributor
System Item Periodic Maintenance Interval
Daily
See Daily
Checks
on
page 70.
Every 50
hours or
monthly
which- ever
comes first
Every 250
hours or 1
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
JH5_EN_OPM.book 68 ページ ２０１３年８月８日 木曜日 午前９時２３分
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