Checking And Adding Engine Coolant - Yanmar 6LPA-STP2 Operation Manual

BEFORE YOU OPERATE
Replace the engine coolant periodically,
according to the maintenance section in this
Operation Manual.
Remove scale from the cooling system
periodically by flushing the system.
Checking and Adding Engine
Coolant
( 1 )
Figure 8
1. Ensure all drain cocks are closed.
2. WARNING! NEVER remove the filler
cap while the engine is hot. Serious
burns may result. Loosen the filler cap
of the coolant tank to relieve the
pressure, then remove the filler cap
(Figure 8, (1)).
3. Pour coolant slowly into the coolant
tank to avoid air bubbles. Fill until
coolant overflows from the filler port.
4. Align filler cap tabs with filler port
notches and tighten filler cap.
WARNING! ALWAYS tighten the
filler cap. Steam or scalding water
may spray out if it is not closed
tightly.
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5.
6.
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7.
8.
6LPA Series Operation Manual
© 2007 Yanmar Marine International
(1)
(2)
(3)
Figure 9
Check the coolant level in the coolant
recovery tank. The level should be at
the FULL mark (Figure 9, (2)). Add
coolant if necessary. NOTICE: NEVER
pour cold coolant into a hot engine.
Remove coolant recovery tank cap
(Figure 9, (4)) to add coolant if
necessary. Do not add water.
Replace filler cap and tighten it firmly.
Failure to do so will cause water
leakage.
Check the rubber hose (Figure 9, (1))
connecting the coolant recovery tank to
the coolant tank / heat exchanger.
Replace if damaged.
Note: If the coolant runs low too
often or only the coolant level in the
coolant tank drops without any
change in the level in the coolant
recovery tank, there may be water
or air leaks in the cooling system.
See your authorized Yanmar
dealer or distributor.
(4)
FULL
LOW
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