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14
Table 1 - First-Stage Troubleshooting Guide
SYMPTOM
High pressure creep
(also causes second-stage
leaks)
External air leakage
-0r-
Secondary diaphragm distended
or burst
Restricted air flow or high inhala-
tion resistance through entire
system
POSSIBLE CAUSE
1. HP Seat (5) is worn or damaged
2. Machine seat orifice damaged.
3. O-ring (4) damaged or worn.
4. O-ring (13) damaged or worn
5. Internal wall of spring block (11)
scratched
1. Port plug o-rings (19 & 21) worn or dam-
aged
2. Diaphragm (25) worn or damaged
3. Diaphragm seating surface damaged
5. Spring retainer (28) loose
1. Cylinder valve not completely open
2. Cylinder valve needs service
3. Filter (9) is clogged
Conshelf XIV Service Manual
TREATMENT
1. Replace HP seat
2. Replace body (16)
3. Replace O-ring
4. Replace O-ring
5. Replace spring block
1. Replace o-rings
2. Replace diaphragm
4. Replace body
5. Tighten spring retainer
1. Open valve; check fill pressure
2. Switch to different cylinder
3. Replace filter
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