10
Fig. 6
DIVE / PRE-DIVE VENTURI LEVER
This lever controls the sensitivity of the regulator.
The Plus and Minus Positions for the lever are
marked on the case beside the lever. To avoid
unexpected venturi free flows at the surface, or
when jumping into the water, the lever should
be set in the PRE-DIVE “-” (forward) position. As soon as the diver is
ready to descend, the lever should be moved to the DIVE “+” (back) posi-
tion.
NOTE: Ask your authorized Zeagle Scuba dealer for in-store instructions
and training on the use of the Resistence Control Knob and the Dive / Pre-
dive Venturi Lever. Your dealer will show you how to make adjustments
to get the desired breathing results. To actually experience the effects of
the adjustment range, the instruction should be conducted with the diver
breathing through a regulator attached to a full air supply. The feel of the
regulator breathing underwater is of course somewhat different from the
feel of breathing above the surface.
Clockwise
Counter Clockwise
This knob adjusts the spring load on the second stage valve and so var-
ies the initial inhalation effort. To adjust the Resistance Control Knob to
the easiest breathing setting, turn the knob fully counter-clockwise (fig. 6).
Sometimes a slight hissing flow of air may be heard at this setting. If this
occurs, turn the knob clockwise (fig. 7) just enough to stop the hissing.
RESISTANCE CONTROL KNOB
Fig. 7
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