Periodic Maintenance Schedule - Yanmar

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PERIODIC MAINTENANCE
6LP2
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
Every
Every
Every
Every
Every
hours or
125
250
500
1000
1250
monthly
hours or
hours
hours
hours
hours
which-
6
or one
or 2
or 4
or 5
ever
months
year
years
years
years
comes
which-
which-
which-
which-
which-
first
ever
ever
ever
ever
ever
comes
comes
comes
comes
comes
first
first
first
first
first
Whole
Visual
inspection
of engine
exterior
Fuel
Check the
System
fuel level
and refill if
necessary
Drain
water and
sediment
from fuel
tank
Drain the
fuel / water
separator
Replace
the fuel
Initial 50
filter
element
Check the
*
fuel
injection
timing
*
*
Check the
fuel
Initial
injector
250
pressure
and nozzle
spray
*
pattern
54
6LPA Series Operation Manual
© 2007 Yanmar Marine International
PERIODIC MAINTENANCE
6LP2
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
Every
Every
Every
Every
Every
hours or
125
250
500
1000
1250
monthly
hours or
hours
hours
hours
hours
which-
6
or one
or 2
or 4
or 5
ever
months
year
years
years
years
comes
which-
which-
which-
which-
which-
first
ever
ever
ever
ever
ever
comes
comes
comes
comes
comes
first
first
first
first
first
Whole
Visual
inspection
of engine
exterior
Fuel
Check the
System
fuel level
and refill if
necessary
Drain
water and
sediment
from fuel
tank
Drain the
fuel / water
separator
Replace
the fuel
Initial 50
filter
element
Check the
*
fuel
injection
timing
*
*
Check the
fuel
Initial
injector
250
pressure
and nozzle
spray
*
pattern
54
6LPA Series Operation Manual
© 2007 Yanmar Marine International
PERIODIC MAINTENANCE
6LP2
○: Check or Clean ◊: Replace ●: Contact your authorized Yanmar marine dealer or distributor
System
Item
Periodic Maintenance Interval
Daily
Every 50
Every
Every
Every
Every
Every
hours or
125
250
500
1000
1250
monthly
hours or
hours
hours
hours
hours
which-
6
or one
or 2
or 4
or 5
ever
months
year
years
years
years
comes
which-
which-
which-
which-
which-
first
ever
ever
ever
ever
ever
comes
comes
comes
comes
comes
first
first
first
first
first
Lubricating
Check the
System
engine oil
level
Change
the engine
Initial 50
oil
Replace
the engine
Initial 50
oil filter
element
Wash the
engine oil
cooler
Marine
Check
Drive
marine
System
drive oil
Check
power
steering oil
Refer to the marine drive system operation manual.
Check
power trim
oil
Check
drive oil
Fresh
Check
Water
coolant
Cooling
level
System
Change
coolant
Clean and
check the
cooling
water
passage
Clean the
cooling
water
system
6LPA Series Operation Manual
55
© 2007 Yanmar Marine International
6LP2
PERIODIC MAINTENANCE
○: Check or Clean ◊: Replace ●: Contact your authorized Yanmar marine dealer or distributor
System
Item
Periodic Maintenance Interval
Daily
Every 50
Every
Every
Every
Every
Every
hours or
125
250
500
1000
1250
monthly
hours or
hours
hours
hours
hours
which-
6
or one
or 2
or 4
or 5
ever
months
year
years
years
years
comes
which-
which-
which-
which-
which-
first
ever
ever
ever
ever
ever
comes
comes
comes
comes
comes
first
first
first
first
first
Seawater
Check
Cooling
seawater
During
System
outlet
Oper-
discharge
ation
Check or
replace the
seawater
pump
impeller
Check or
replace the
zinc
anodes
Check and
clean the
seawater
passage
Piping
Clean or
replace the
exhaust /
water
mixing
elbow
Check or
replace
fuel line
and rubber
hoses
Electrical
Check the
System
alarm and
indicators
Check the
electrolyte
level in the
battery
Adjust the
tension of
the
alternator
V-belt or
replace V-
belt
56
6LPA Series Operation Manual
© 2007 Yanmar Marine International
PERIODIC MAINTENANCE
6LP2
○: Check or Clean ◊: Replace ●: Contact your authorized Yanmar marine dealer or distributor
System
Item
Periodic Maintenance Interval
Daily
Every 50
Every
Every
Every
Every
Every
hours or
125
250
500
1000
1250
monthly
hours or
hours
hours
hours
hours
which-
6
or one
or 2
or 4
or 5
ever
months
year
years
years
years
comes
which-
which-
which-
which-
which-
first
ever
ever
ever
ever
ever
comes
comes
comes
comes
comes
first
first
first
first
first
Remote
Check and
Control
lubricate
Handle
the remote
control
cable
operation
Adjust the
remote
control
cable
Intake and
Wash
Exhaust
turbo-
System
charger
blower
Clean air
cleaner
Adjust the
intake and
Initial
exhaust
250
valve
clearance
Lap the
intake and
exhaust
valves
Miscel-
Check and
laneous
adjust the
power
steering oil
pump belt
(6LPA-
STZP2
only)
Replace
the timing
belt
*
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.
6LPA Series Operation Manual
57
© 2007 Yanmar Marine International
6LP2
PERIODIC MAINTENANCE
Inspection and Maintenance of EPA Emission-Related Parts
Parts
Interval
Clean fuel injection nozzle
1500 hours
Check fuel injection nozzle (adjustment)
Check fuel injection pump adjustment
3000 hours
Check turbocharger adjustment
Check electronic engine control unit and its associated sensors and actuators
Note: The inspection and maintenance items shown above to be performed at your Yanmar
dealer or distributor.
58
6LPA Series Operation Manual
© 2007 Yanmar Marine International

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