Volvo Penta D7A T, Руководство оператора

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Coolant Level, Checking and
Topping Up
Checking the coolant level
CAUTION!
Avoid opening the filler cap for engine coolant system
(freshwater cooled engines) when the engine is still
hot. Steam or hot coolant can spray out as system
pressure is lost.
When engine is cold the coolant level must be visible
at the lower edge of the filler neck on the expansion
tank.
Filling coolant
The freshwater system (HT) is automatically bled via
the pressure relief spring on the pressure cap on the
expansion tank. Check the closure plug and seal ring
for leaks when the engine is in operation. Tighten the
plug if necessary.
Topping up
IMPORTANT!
When topping up, use the same coolant mixture as
already in the system.
Fill the freshwater system (HT) with coolant to the
correct level through the filler opening in the expansion
tank. Fill slowly so that evacuated air is able to pass
the filler opening.
NOTICE! For coolant specification refer to section
Technical Data, page 104 .
Filling the system when empty
Fill the freshwater system (HT-circuit) with coolant to
the correct level through the filler opening in the
expansion tank.. Fill slowly so that evacuated air is able
to pass the filler opening.
NOTICE! For coolant specification refer to section
Technical Data, page 104 .
1 Start the engine and run it under no load until the
thermostat valve opening temperature is reached.
IMPORTANT!
The engine must not be operated under full load
before the system has been bled and topped up.
2 Check air vent for leakage.
3 Stop the engine and allow it to cool. Check the
coolant level and top up if needed.
Maintenance
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