Anti-siphon valve
Some configurations have a vacuum valve installed in
the seawater pipe.
•
Close the sea cock before working on the valve.
•
Remove the valve. Unscrew the hexagonal cover
(A).
•
The cover contains a gasket (B) and membrane (C).
•
Clean all the components.
•
Turn the valve housing over. First insert the
membrane and then the gasket.
•
Screw the cover down. If the cover is screwed on
too tightly, the valve may stop working.
Tightening torque:
2 Nm
•
Install the vacuum valve onto the hoses.
•
Open the sea cock.
•
Check that there is no leakage when the engine
starts.
NOTICE!
There are different versions of the vacuum
valve, but they all operate on the same principle.
P0030654
P0026743
Cooling System
60
47708114 06-2021 © AB VOLVO PENTA