8
5.0.4 Replace the Purge Cover Assembly onto the Octo-Z.
5.0.5 Attach the Octo-Z to a BC using the Bx Coupling.
5.0.6 Orally inflate the BC with the Octo-Z by putting the mouthpiece in the mouth and exhaling while
depressing the oval Deflate/Oral Inflate Button. Release the button between breaths. Check for smooth
quiet action of the oval button.
5.0.7 With the mouth removed from the mouthpiece, push the oval Button and watch for proper deflation
of the BC.
5.0.8 Attach the Inflator Hose to the Octo-Z using the QD Fitting.
NOTE: It is always good practice to connect and disconnect QD Fittings when there is no positive pres-
sure in the hose. O-Rings and Seals will have a shorter life, if connection and disconnection is done
under pressure.
5.0.9 Open the tank valve to apply 125-150 psi to the Octo-Z through the Inflator Hose.
5.0.10 Push the round Inflate Button until the BC is fully inflated and the OP Valves release some air. Feel
and listen for any unusual sounds or rough feel when the button is depressed.
5.0.11 Immerse the Octo-Z fully in the pan of water and look for any escaping bubbles from the stem seal
of the Oval Button, the stem seal of the Round Button, the Inflate Valve Cap, the QD Fitting, or the Bx
Corrugated Hose Coupling. See the arrows in Photos 3 & 4 for these locations.
Photo 3
5.0.12 Inspect the mouthpiece for tears or missing tabs.
5.0.13 Take a few breaths from the Octo-Z to determine that the inhalation is smooth and easy.
It is not necessary, but if a gauge is used to measure inhalation effort, it should be between
1.5” and 2.1 “ of water column. Remember that the Octo-Z spends most or all of the dive out
of the diver’s mouth, so it should be adjusted with a higher cracking effort than a primary regu-
lator to avoid unintentional free flows caused by water currents particularly during water entry.
5.0.14 Clean easily removed dirt from the exterior of the Octo-Z with an old tooth brush.
5.0.15 Push the round Inflate button and the Purge cover to remove most of the moisture from
the interior of the Octo-Z
5.0.15 Use clean compressed air to dry the Octo-Z exterior.
Photo 4
