Yanmar 6CXM-GTE2, Operation Manual

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3.4 Supplying Cooling Water
Burns from Scalding
• Never remove the filler cap of the fresh
water cooler while the engine is still hot.
Steam and hot water will spurt out and
seriously bum you. Wait until the water
temperature has dropped, then wrap a
cloth around the cap and loosen it slowly.
• After inspection, refasten the cap firmly. If the cap is
not secure, steam or scalding water may be emitted
during operation, causing burns.
Fill the fresh water tank and the sub-tank with fresh
cooling water.
1 Before filling, check to be sure the drain cocks
(indicated in the photo’s) are closed.
2 Remove the filler cap of the fresh water tank by
turning the cap counterclockwise 1/3 of a turn.
3 Pour cooling water slowly into the fresh water tank
so that air bubbles do not develop. Supply until the
water overflows from the filler port.
4 After supplying cooling water, replace filler cap and
tighten it firmly. To replace the cap, align the detents
on the bottom of the cap with the notches on the
filler port and turn clockwise 1/3 of a turn.
5 Remove the sub-tank cap and fill with water to the
upper limit, FULL. Replace cap.
6 Check the rubber hose connecting the sub-
tank to the fresh water cooler. Be sure the
hose is securely connected and there is no
looseness or damage. When the hose is not
watertight, an
excessive amount
of cooling water wil
l be used.
Before operation
3
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Upper limit
Lower limit
To fresh water tank
Filler cap
Drain cock
Drain cock
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MARINE DIESEL ENGINE 6CXM-GTE2
Drain cock
Filler cap