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SAS
SAS
VALVE
VALVE
INSPECTING THE ONE-WAY VALVE
- Remove the SAS valve
- Temporarily install the rubber sleeve at the outlet of the
SAS valve ensuring its seal
- Connect the vacuum pump to the rubber sleeve as shown
in the figure
- Set the pump in vacuum position (VACUUM)
- Slowly open the pump
- Check that the unidirectional valve allows the passage of
the air generating a small vibration.
- Switch the pump to pressure position (PRESSURE)
- Slowly open the pump and check that there is an increase
of pressure. Little leaks are normal. In case of faults, repla-
ce
N.B.
AN INCORRECT OPERATION OF THE UNIDIRECTIONAL VAL-
VE CAN CAUSE THE OVERHEATING OF THE RUBBER SLEEVE
AND FILTERS.
N.B.
THE ABSENCE OF VIBRATIONS INDICATES A POOR SEA-
LING.
Specific tooling
020329Y Pump
147
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