Cressi-sub XS Compact - Page 63

Regulators repair and maintenance
January 2014 Rev XSC /3 Ed. C /14 63
XS Compact 2nd stage:
checking and inspection steps
• Once the regulator is calibrated, keeping the regulator under
pressure with a properly calibrated 1st stage, making the following
final checks:
• Immerse the second stage slowly in water with the mouthpiece
facing up, with the Venturi control lever in the Dive "+" position,
and without letting water enter from the mouthpiece;
• After about 5 cm of water, the regulator should start to release air,
until the second stage free flows completely;
• Then check the proper operation of the Venturi flow deviator,
swiveling the lever to the "-" position; the continuous flow must
cease;
• Completely immerse the regulator in water with the flow deviator in
the pre-dive position (-):
• Wait about a minute, and then check that there are no leaks by
looking for any columns of bubbles that indicate a leak (do not
confuse these with the exit of air trapped in the 2nd stage);
• In the event of leaks, refer to the manual about the steps of
calibration.