PERIODIC MAINTENANCE
44
8LV Series Operation Manual
5. Turn the filter an additional 3/4 to one turn with
a filter wrench.
6. Fill with new engine oil.
NOTICE
• Never mix different types of engine oil. This
may adversely affect the lubricating properties
of the engine oil.
• Never overfill. Overfilling may result in white
exhaust smoke, engine overspeed or internal
damage.
7. Perform a trial run and check for oil leaks.
8. Approximately 10 minutes after stopping the
engine, remove the oil dipstick and check the oil
level. Add oil if the level is too low.
■
Changing the Engine Oil and Replacing
the Engine Oil Filter Element
See Changing the Engine Oil and Replacing the
Engine Oil Filter Element on page 43
.
■
Adjusting the Propeller Shaft Alignment
The flexible engine mounts are compressed a little
during initial engine operation and may cause
misalignment between the engine and the propeller
shaft.
After the first 50 hours of operation, the alignment
should be checked and readjusted if necessary.
This is considered normal maintenance and the
adjustment requires specialized knowledge and
techniques. Consult your authorized Yanmar
Marine dealer or distributor.
Check for any unusual noise and vibration in the
engine/boat hull, while gradually increasing and
decreasing the engine speed.
If there is unusual noise and/or vibration, this
maintenance requires specialized knowledge and
techniques. Contact your authorized Yanmar
Marine dealer or distributor to adjust the propeller
shaft alignment.
Perform the following maintenance every 50 hours
or monthly of operation, whichever comes first.
•
Draining the Fuel/Water Separator
•
Checking the Battery Electrolyte Level
(Serviceable Batteries Only)
■
Draining the Fuel/Water Separator
WARNING
When removing any fuel system component to
perform maintenance (such as changing the
fuel filter), put an approved container under the
opening to catch the fuel. Never use a shop rag
to catch the fuel. Vapors from the rag are
flammable and explosive. Wipe up any spills
immediately. Wear eye protection. The fuel
system is under pressure and fuel could spray
out when removing any fuel system
component.
The 8LV series engine already have the optional
fuel/water separator installed. If not, the customer
should install a fuel/water separator attached to the
hull.
Water Separator (Option)
1. Draining the separator:
• Remove the plug at the bottom of the water
separator and drain any water and dirt.
• After draining the separator, reinstall the plug
securely.
Figure 3
2. Replacing the element:
• Remove the center separator bolt, then the
filter case and element.
• Wash the separator case and replace the
element and O-ring with new ones.
• Do not forget to reinstall the spring and washer.
Fasten the center bolt securely.
Every 50 Hours of Operation
002620-01X
8LV_OPM.book 44 ページ 2011年1月11日 火曜日 午後12時8分