Kirby Morgan SuperLite 17B Operation And Maintenance Manual page 30

Kirby morgan superlite 17b helmet
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SuperLite
17B
DANGER
Never connect the main gas supply hose
from the diving station/umbilical to the emer-
gency valve. There is no one way valve in
the emergency valve. If this mistake is made,
any break in the supply hose could possibly
result in a "squeeze".
This could result in serious injury or death.
The adjustment knob operates by simply increasing
or decreasing the amount of spring bias tension on the
demand regulator inlet valve. The adjustment knob
has a range of approximately 13 turns from full in
to full out. The intent of this bias adjustment device
is strictly to allow the diver to make adjustments for
variations in umbilical supply pressure.
This adjustment device is not intended as a minimum-
maximum device. Minimum and maximum applies
to supply pressure only. The adjustment knob should
be adjusted by the diver to be at the easiest breath-
ing setting at all times. The exact number of turns
required is dependent on the supply pressure.
Diving a KMDSI helmet or BandMask
setting greater than that just necessary to keep the
demand valve from free flowing increases the work
of breathing and reduces the diver's ability to perform
heavy work.
16
The regulator adjustment knob should be
adjusted to the easiest breathing setting
at all times. Adjusting the regulator fur-
ther in than necessary to keep from free-
flowing increases breathing resistance.
The side block on the helmet is drilled and tapped
to accept low-pressure inflator hoses. This allows
the diver the capability to inflate variable volume
dry suits. It is tapped with a 3/8-24 thread orifice,
standard for American first stage scuba regulator's
low-pressure auxiliary fittings.
The port is shipped plugged at delivery. This inflation
capability does not significantly interfere in any way
with the breathing characteristics of the regulator
during normal use providing a limiting hose is used.
When using a dry suit inflation hose, the hose should
be equipped with a flow restrictor (P/N 555-210) to
limit flow in the event the hose ruptures or is severed.
with a bias
®
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
CAUTION

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