PERIODIC MAINTENANCE
YM Series Operation Manual 57
12/05
* For EPA requirements, see Inspection and Maintenance of EPA
Emission-Related Parts on page 58 .
Note: These procedures are considered normal maintenance and are performed at
the owner’s expense.
Air Intake
and
Exhaust
System
Clean the intake silencer
(air cleaner) element
Clean or replace the
exhaust / water mixing
elbow
Clean the breather pipe
Check the exhaust gas
condition
During
Operatio
n
Check diaphragm
assembly
●
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
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
●
Miscellan
e- ous
Items
Check the remote control
cables
●
Adjust the propeller shaft
alignment
●
: Check or Clean : Replace ●: Contact your authorized Yanmar Marine dealer or distributor
System Item
Periodic Maintenance Interval
Before
Starting
See
Daily
Checks
on
page 59
.
Initial
50
Hours
Every
50
hours
or
monthly
which-
ever
comes
first
Every
100
hours
or six
months
which-
ever
comes
first
Every
150
hours
or one
year
which-
ever
comes
first
Every
250
hours
or one
year
which-
ever
comes
first
Every
1000
hours
or 4
years
which-
ever
comes
first
YM OPM_EN.book 57 ページ ２０１３年６月７日 金曜日 午前１１時１１分
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