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M A N U A L - SukellusLuola.com

M A N U A L - SukellusLuola.com

4 The Razor BAT WingStep

4 The Razor BAT WingStep 6: Correct Use of the BAT WingThe Backup wing can be deflated in 3 ways:• By using the coin dump at the rear of the wing. Roll slightly to the left andslightly head down to position the coin valve at the highest point of thewing then deflect one side of the coin valve by pressing on it gently withyour thumb or finger. No force is required as you just need to break theseal.• By holding the oral inflation hose at the highest point and pinching gentlyon the bite valve between thumb and forefinger to open it• By biting gently on the bite valve of the oral inflation tube and sucking avacuum on it.If you are having trouble venting air from the oral inflation tube check thatthis dump valve is at the highest position of the wing, that you are pinchingit in the correct orientation across the horizontal axis and that you are pinchingat the very end.74

4 The Razor BAT WingStep 6: Correct Use of the BAT WingPlease note that the coin dump valve also functions as an over pressure reliefvalve so that in the event you have a lot of gas in the Backup wing and startto ascend it will vent automatically to prevent a wing rupture.For this reason if the Backup wing is very full and you put any pressure on itthe coin dump valve will release a small amount of air without you touching it.This is a design feature and perfectly normal.After diving both the Primary and Backup wings should be drained of anywater that is inside and partially inflated to dry.Both Primary and Backup wings can be drained of water in exactly the sameway air is vented from them although it is easier if you orally inflate them alittle first so that you can force any water out under pressure.Please note that even when not using the Backup wing during a dive a smallamount of water may enter it by being forced through the coin dump valveunder pressure as you descend as any small internal airspace remaininginside the backup wing is not equalized with external pressure.This is completely normal and will not affect the function of the wing in anyway but will need to be drained at the end of the dive.75

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