Yanmar 6SY Series, Operation Manual

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BEFORE YOU OPERATE
42
6SY Operation Manual
Following the manufacturer’s
recommendations. Use a proper LLC
which will not have any adverse effects on
the materials (cast iron, aluminum, copper,
etc.) of the engine’s fresh water cooling
system. See
Engine Coolant
Specifications .
Replace engine coolant periodically,
according to the maintenance schedule in
this
Operation Manual .
Remove scale from the cooling system
periodically by flushing the system.
Checking the Coolant Level
A
DANGER
SCALD HAZARD!
• NEVER remove the coolant
filler cap if the engine is hot.
Steam and hot engine coolant
will escape and seriously burn
you. Allow the engine to cool
sufficiently before attempting
to remove the filler cap.
• Securely tighten the filler cap
after checking the coolant
level. Steam can escape during
engine operation if the cap is
loose.
• Failure to comply will result in
death or serious injury.
0000002enMarine
A
WARNING
BURN HAZARD!
• Wait until the engine cools
before you drain the engine
coolant. Hot engine coolant
may splash and burn you.
• Failure to comply could result
in death or serious injury.
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