Yanmar 6SY Series Operation Manual page 98

PERIODIC MAINTENANCE
CAUTION
If the fuel filter / water separator
is positioned higher than the fuel
level in the fuel tank, water may
not drip out when the fuel
filter / water separator drain cock
is opened. If this happens, turn
the air vent screw on the top of
the fuel filter / water separator
2-3 turns counterclockwise.
Be sure to tighten the air vent
screw after the water has drained
out.
CAUTION
• ALWAYS be environmentally
responsible.
• Follow the guidelines of the
EPA or other governmental
agencies for the proper
disposal of hazardous
materials such as engine oil,
diesel fuel and engine coolant.
Consult the local authorities or
reclamation facility.
• NEVER dispose of hazardous
materials irresponsibly by
dumping them into a sewer, on
the ground or into ground
water or waterways.
• Failure to follow these
procedures may seriously
harm the environment.
90
Drain or Replace the Fuel Filter Element
1. Close the fuel tank cock.
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2. Loosen the drain plug. Drain off any
water or dirt.
3. Clean the outside of the filter and
remove it by turning it
counterclockwise.
4. Install a new filter and hand-tighten.
5. Drain the fuel filter / water separator.
See Drain or Replace the Fuel Filter /
Water Separator on page 91.
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Figure 13
6SY Operation Manual