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7.8.11 SuperFlow
Regulator Steady Flows
®
When Pressured Up: Special Tools Used
Tools Required:
Small flat blade screw driver.
Small jewelers screw driver or metal scribe.
Needle nose pliers.
KMDSI regulator tool kit if available.
A few words about the demand regulator: The de-
mand regulator is rugged and reliable. However, to
maintain optimum performance it should be checked
prior to each diving day in accordance with the brief
procedure Demand Regulator Test for Correct
Adjustment, Fully Assembled on page 77.
If after completing the demand regulator test as
outlined in this chapter, adjustment is necessary and
the special KMDSI tool kit is not available proceed
as follows:
1) Remove the regulator clamp, cover and diaphragm.
2) Adjust the regulator adjustment knob all the way
in. Finger tight only.
3) Pressurize the regulator to between 120-150 p.s.i.g.
(8.5-10 bar).
WARNING
The lock nut must always be replaced if
removed from the inlet valve. The plastic
material that locks the nut is not designed
for multiple reuse. If the nut comes loose
during a dive the regulator would free
flow heavily. In the situation where the
diver is using bottled breathing gas this
would result in a rapid consumption of
breathing gas.
CAUTION
The nut must not be loosened more than
1/8 turn to lower the height of the lever. If
more adjustment is necessary the lever
should be bent downward. If the nut is
loosened more than 1/8 turn the lever
will not have enough travel for proper
flow rates.
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
4) If the regulator is not free flowing, slowly back out
on the adjustment knob until a slight free flow is heard
and then rotate the adjustment knob in (clockwise)
1/4 turn and depress the purge button momentarily.
Repeat this procedure until the gas flow stops.
If the regulator free flows, you will need to remove the cover
to make adjustments.
Usually at this point the regulator adjustment knob
will be between 5 and 7 turns out. Note: If when
backing the adjustment knob out from the full "in"
position, the regulator starts free flowing at less
than five turns, then this usually indicates insuf-
ficient free play at the lever.
There are several issues that could cause the regulator
to free flow, even when the adjustment knob is turned
all the way in. These are as follows:
A) The regulator was rebuilt and the adjustment
nut is too tight. If this is the case, the nut must be
loosened.
B) The washer was never removed from the regu-
lator and a second one has accidentally been in-
stalled. If this is the case, the second washer must
be removed.
C) The regulator body has never been properly ser-
viced and there is corrosion inside the body, making
proper inlet valve travel impossible.
®
SuperLite
17B
93
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