During The Dive - Kirby Morgan 200-120 User Manual

During the Dive

3. Visually inspect both the first and second stage regulators for
any signs of external damage.
4. Slowly back out on the demand regulator adjustment knob
counter clockwise until a slight free flow develops, then slowly
rotate the adjustment knob in (counterclockwise) until the
free flow stops. Depress the front cover of the regulator while
slightly blocking the mouthpiece to prevent freeflow of the
regulator. At this point the regulator is set for the least amount
of breathing effort. Test breathe by taking several shallow
and deep breaths to ensure the regulator breathes properly.
Turn the adjustment knob in (clockwise) at least three turns.
This will prevent the regulator from free flowing if you enter the
water without the regulator in your mouth. Readjust the regula-
tor when in the water.
During the Dive
1. This demand regulator can be adjusted by the diver during
the dive by simply rotating the spring bias adjustment OUT
(counter clockwise) to make the demand valve more sensitive
or IN (clockwise) to make the demand valve less sensitive.
In normal operation the demand adjustment should be set
at the easiest breathing setting by rotating the adjustment
knob OUT (counterclockwise) until a slight free flow develops
and then rotate it in until the free flow stops. At this point
the diver will be taking full advantage of the demand valve's
performance.
NOTE: Before entering the water, it is best to turn the ad-
justment knob in (clockwise) at least 3 full turns or until
an audible "click" is heard. Doing this, as well as slightly
covering the mouthpiece, should eliminate the possibility
of free flow from sudden water force on the diaphragm.
This regulator does NOT have a "Pre-Dive/Dive" mecha-
nism/ vane. If the regulator does free flow, slight blockage
of the mouthpiece opening will stop any flow.
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© MMXVII Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 170814005