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12
3.
Observe any bubbles streaming from the submerged
regulator over a one-minute period. This recommended
time is necessary due to the lower bubble formation that
occurs in cases of smaller leaks. Any bubbles noted in-
dicate leakage with the need to disassemble and check
all sealing areas, assembly sequence and component
positioning in order to correct the problem(s).
F
NOTE: An alternative method for visually detecting
regulator leakage is to apply soap solution to possible
leakage areas using a small, clean brush. Bubble
streams will pinpoint the source of leakage.
Before disassembling to correct any leakage problems,
rinse the entire regulator thoroughly with fresh water and
blow out all residual moisture with filtered, low-pressure
(30 psig) air. Disassemble and remedy the problem,
referring to the Troubleshooting Table as needed.
SUBJECTIVE BREATHING TESTING
1.
In general, the properly overhauled and adjusted
Conshelf 14 Regulator, upon breathing in and out of the
mouthpiece slowly and deeply four or five times, should
deliver air to the user without excessive inhalation effort,
freeflow, or "fluttering" of the second-stage diaphragm.
In addition, when exhaling there should be no flutter-
ing or sticking of the exhalation valve. If any of these
problems occur, again refer to the Troubleshooting Table
for corrective guidelines and specific procedures. Also,
conduct a purge flow test; depress the purge button
fully; an adequate volume of air should flow from the
mouthpiece.
This concludes the adjustment and testing
procedures for the Conshelf 14 Regulator
AUTHORIZED REGULATOR
ADJUSTING AND TESTING: NON-
FLOW BENCH PROCEDURES
1.
After attaching the first and second stages, (see
ment of First-stage to Second-stage
1 through 4, on page 9) use a spare intermediate-pres-
sure hose (Item 48). Attach this hose to one of the open
low-pressure ports on the first-stage body (Item 1). (If
the Octopus regulator is attached to the first-stage regu-
lator, removal of the port plug [Item 3] will be required.)
F
NOTE: If no test bench is available for testing the
Conshelf Regulator, the following adjustment and test-
ing procedures should be followed.
Series.
Regulators, steps
2.
Thread the intermediate test pressure gauge (P/N
111610) onto the free end of the intermediate-pressure
hose. Make sure that the bleeder valve of the test pres-
sure gauge is open prior to pressurizing the regulator.
3.
Connect the first-stage regulator to a low-pressure
air source (partially filled SCUBA cylinder - 500 psig).
Slowly turn on the air source control knob and pressur-
ize the regulator. Once the regulator is pressurized,
slowly close the gauge bleeder valve while watching the
test gauge. The gauge should indicate a "lockup" pres-
sure of 120 to 160 psig. If the gauge pressure continues
beyond 160 psig, immediately open the gauge bleeder
valve and close the air-source control valve. Such a
steadily increasing gauge pressure beyond 160 psig
indicates failure of the first-stage regulator to achieve
"lockup" pressure. Refer to the Troubleshooting Table 1,
page 14, for corrective guidelines and specific proce-
dures.
4.
If the intermediate pressure is not greater than 160 psig
but there is an audible leak or freeflow from the second-
stage regulator(s), adjustment of the lever (Item 34) will
be required before final adjustment of the first-stage
intermediate pressure can be completed. To adjust the
lever see page 12,
ing", Step 2a or 2b.
CAUTION: If an adjustment of intermediate-
pressure is required, be sure to "cycle" (10
times) the regulator by pushing the purge
button (Item 39) after turning the adjustment
screw (Item 11). Failure to "cycle" the regula-
tor can result in a false reading of the first-
stage intermediate-pressure "lock-up".
5.
The optimum lockup pressure is 140±5 psig for the
standard Conshelf 14, and 125±5 psig for the Conshelf
Supreme and 300 Bar DIN versions. To increase the
intermediate pressure, turn the adjustment screw (Item
11) "in" or clockwise; to decrease the intermediate pres-
sure, turn the adjustment screw "out" or counterclock-
wise. Turn the adjustment screw using a large flat-blad-
ed screwdriver. Turn the screw no more than 1/8 turn
at a time, then purge the second stage several times
and observe the adjustment's intermediate-pressure
increase. Repeat this process until the proper intermedi-
ate pressure is set.
6.
Assuming the correct intermediate-pressure has been
Attach-
achieved, depress the purge button (Item 39) several
times, release and observe the intermediate-pressure
gauge 5 seconds to 15 seconds after purging. The
intermediate-pressure indicated must not "creep" or
slowly increase more the 5 psig within this time. If the
intermediate-pressure will not stabilize at one pressure
setting, refer to the Troubleshooting Table 2, page 19, for
corrective guidelines and specific procedures.
7.
After stabilizing the intermediate-pressure repeat Steps
3 through 7 at 3000 psig, service pressure.
F
NOTE: For the Conshelf Supreme: See page 10, Step 7
for reinstallation of environmental components on the
Supreme Model.
Conshelf XIV Service Manual
"Second-Stage Adjustment and Test-
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