
PERIODIC MAINTENANCE
6LPA Series Operation Manual 55
12/05
Note: These procedures are considered normal maintenance and are performed at the owner’s expense.
Seawater
Cooling
System
Check seawater
outlet discharge
c
During
Oper-
ation
Check or replace
the seawater
pump impeller
z
Check or replace
the zinc anodes
Check and clean
the seawater
passage
z
Piping Clean or replace
the exhaust /
water mixing
elbow
z
Check or replace
fuel line and
rubber hoses
cz
Electrical
System
Check the alarm
and indicators
c
Check the
electrolyte level in
the battery
c
Adjust the tension
of the alternator
V-belt or replace
V-belt
cz
Remote
Control
Handle
Check and
lubricate the
remote control
cable operation
c
Adjust the remote
control cable
c
Intake and
Exhaust
System
Wash turbo-
charger blower
z
Clean air cleaner c
Adjust the intake
and exhaust valve
clearance
z
Initial
250
z
Lap the intake and
exhaust valves
z
Miscel-
laneous
Check and adjust
the power steering
oil pump belt
(6LPA-STZP2)
c
Replace the
timing belt
z
Replace the front
rubber damper
z
c
: Check or Clean : Replace z: Contact your authorized Yanmar marine dealer or distributor
System Item
Periodic Maintenance Interval
Daily
Every 50
hours or
monthly
whichever
comes first
Every 125
hours or
6 months
whichever
comes first
Every 250
hours or
1 year
whichever
comes first
Every 500
hours or
2 years
whichever
comes first
Every 1000
hours or
4 years
whichever
comes first
Every 1250
hours or
5 years
whichever
comes first
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