Subjective Breathing Test - Aqua Lung CALYPSO Maintenance Manual

12
2. Observe any bubbles
arising from the sub-
merged regulator over a
one minute period. The
recommended time is
necessary due to slower
bubble formation that
occurs in smaller leaks.
Bubbles indicate a leak,
which requires that the
system must be disassembled at the source to check seal-
ing surfaces, assembly sequence and component position-
ing in order to correct the problem(s).
NOTE:
Extremely small leaks may be better detected
by applying a soap solution or Snoop™ to the leak area.
Bubble streams will indicate the source of the leak. Before
disassembling to correct any leaks, rinse the entire regula-
tor thoroughly with fresh water and blow out all residual
moisture with filtered, low-pressure (50 psi) air. Disassem-
ble and remedy the problem, referring to Table 1 - Trouble-
shooting.

Subjective Breathing Test

1. Depress the purge cover fully to ensure that an adequate
volume of air needed to clear the second stage flows
through the mouthpiece. Then, inhale slowly but deeply
from the mouthpiece. A properly serviced and adjusted
regulator should deliver air upon deep inhalation without
excessive inhalation effort, freeflow, or "fluttering" of the
second-stage diaphragm. When exhaling, there should be
no fluttering or sticking of the exhalation valve. If any of
these problems occur, refer to Table 1 - Troubleshooting.
This concludes annual service procedures
for the Calypso/Titan Second Stage.