Aqua Lung GLACIA Service & Repair Manual page 6

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4. While holding the second stage secure, firmly grasp the collar of the front cover (3) which is seated
over the ribbed adjustment port of the box bottom, opposite of the inlet side. Stretch the collar over
the adjustment port (see Fig. 3), and lift the front cover off the box bottom until the opposite collar can
be removed from the inlet fitting.
Fig. 3 - Removing Front Cover
5. If it is necessary, press out the stem of the purge button (2) from inside the front cover. Closely exam-
ine the front cover to check for any tears, distortion, deterioration, or other signs of damage. Replace
it if found, or set it aside if it is in reusable condition.
6. Lift out the sealing ring (4) and diaphragm (5) from the box bottom. Separate these two parts and closely
inspect the diaphragm to ensure that it is perfectly round and free of any tears, deterioration, or other
damage. If deterioration or damage is found, discard the diaphragm and do not attempt to reuse.
7. While depressing the lever, unscrew the adjustable crown (32) about 6 or 7 full turns (see Fig. 4).
Fig. 4 – Loosen Adjustable Crown
8. Apply an 8mm wrench to the connecting nut (11) and another 8mm wrench to the sheath (13). See
Fig. 4. Turn the connecting nut counterclockwise to initially loosen it from the sheath. Once loosened,
use your fingers to fully unscrew the sheath from the connecting nut.
Fig. 5 – Loosen Connecting
Nut and Sheath
© 2000 Aqua Lung America, Inc.
unscrew 6 to 7 full turns
depress lever
Glacia Second Stage Service & Repair Manual