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Check coolant (closed cooling circuit)
ATTENTION: With hot engine, the closed cooling circuit
is under pressure. Do not try to open the
radiator cap or the drain plugs when engine
is hot. This may cause severe injuries by hot
coolant. As soon as the engine has cooled
down, the cap may be opened.
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Remove radiator cap (23/A). Coolant level should reach the
“MAX” marking (23/B) in the expansion tank.
ATTENTION: Only add STEYR MOTORS engine coolant.
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NOTE: When not using the original STEYR
MOTORS coolant, severe damage to the
cooling system of your engine may occur.
Drain the raw water circuit of the engine
ATTENTION: Not draining the raw water circuit in time
before the winter season and/or daily when
running the engine during the winter season,
may lead to freeze demage on the engine.
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Remove drain plug (24/A). Engine empties itself via exhaust
system.
NOTE: Drain plug (24/A) is not availabe for all
types, in that case remove the hose.
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Loosen 2 hose clamps (25/A) and remove raw water hoses,
quickly start the engine so that raw water pump empties
itself.
NOTE: As to procedure for draining the remaining
equipment on your boat, see your STEYR
MOTORS Marine dealer.
Check raw water (open circuit with pump)
Filling is done automatically via raw water pump after having star-star-
ted the engine.
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