Aqua Lung GLACIA Service & Repair Manual page 19

Glacia Second Stage Service & Repair Manual
Troubleshooting Guide – Glacia Second Stage
SYMPTOM
Leakage or freeflow from
second stage
Low purge or excessive work
of breathing (full cylinder)
Water entering second-stage
CAUTION: Recommended treatments which require disassembly of the regulator
must be performed during a complete overhaul, according to the prescribed proce-
dures for scheduled, annual service. Do not attempt to perform partial service.
NOTE: This is a partial list of possible problems and recommended treatments. For
more information, refer to the second-stage troubleshooting guide, or contact the
Repair Department for assistance with problems not described here.
Table 1
POSSIBLE CAUSE
1. High first-stage intermediate pressure.
(should be 130-135 psi)
2. LP seat (7) damaged or worn.
3. Crown (32) and/or locknut (20) adjusted
incorrectly, lever set too high.
4. Lever bent
5. Crown(32) sealing surface damaged.
6. Poppet spring(9) damaged.
1. Low intermediate pressure.
(should be 130-135 psi)
2. Crown (32) and/or locknut (20) adjusted
incorrectly, lever set too low.
3. Intermediate pressure hose(35)
clogged or obstructed.
4. Lever bent
1. Hole in mouthpiece (24).
2. Demand diaphragm (5) damaged.
3. Exhaust diaphragm (22) damaged.
4. Vane Adjustment Switch o-ring (29)
dirty, damaged, or worn.
5. Diaphragm improperly seated
between box bottom (29) and
sealing ring (4).
6. Box bottom damaged.
(Check exhaust valve sealing surface.)
7. Inlet o-ring (30) damaged.
8. Plug o-ring (27) worn or damaged.
TREATMENT
1. Refer to first-stage Troubleshoot-
ing Guide.
2. Replace LP seat.
3. Reset crown and locknut to
preliminary settings, and repeat
Adjustment Procedures.
4. Replace lever
4. Replace crown.
5. Replace poppet spring.
1. Refer to first-stage Troubleshoot-
ing Guide.
2. Reset crown and locknut to
preliminary settings, and repeat
Adjustment Procedures.
3. Clean or replace hose.
4. Replace lever
1. Replace mouthpiece.
2. Replace demand diaphragm.
3. Replace exhaust diaphragm(s).
4. Disassemble and replace o-ring.
5. Remove front cover (3) and prop-
erly reassemble sealing ring with
diaphragm . (Check for distortion.)
6. Disassemble and replace box
bottom.
7. Disassemble and replace o-ring.
8. Disassemble and replace o-ring.
© 2000 Aqua Lung America, Inc.
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