Oceanic DELTA 4 - Troubleshooting

REGULATORS
DELTA 4 SECOND STAGE
© 2002 Design, 2005
PG-3
OCEANIC® Product Service Guide
Doc. 12-2803-r02 (10/3/10)
TROUBLE SHOOTING
SYMPTOM POSSIBLE CAUSE TREATMENT
* Freeow or leakage present.
ADJUSTMENT KNOB (33)
turned in.
1. Replace with new.
2. Refer to First Stage Troubleshooting
Chart.
3. Replace with new.
4. Replace with new.
5. Replace with new and readjust.
(Refer to Tuning Section.)
6. Replace WASHER (18), SPACER
(19), and LOCK NUT (20) with new.
7. Turn in clockwise to adjust. (Refer
to Tuning Section.)
8. Replace with new.
9. Follow correct procedure given in
Reassembly Section to tighten.
10. Remove and clean.
* Water entering Second
Stage.
* ADJUSTMENT KNOB (33) dif-
cult to turn.
* Little or no air ow when
Purge Button is depressed.
* Rattle heard inside Second
Stage.
* Excessive inhalation resis-
tance. ADJUSTMENT KNOB
(33) turned out.
1. Tear in MOUTHPIECE (9).
2. EXHAUST VALVE (7) distorted or dam-
aged.
3. DIAPHRAGM (4) distorted or damaged.
4. Debris trapped beneath EXHAUST VALVE
(7).
5. FRONT COVER (2) insufciently tight-
ened onto HOUSING ASSEMBLY (5).
6. Cracked or damaged HOUSING ASSEM-
BLY (5).
7. Mouthpiece TIE WRAP (8) loose or miss-
ing.
1. Debris or corrosion present on AD-
JUSTMENT SHAFT (29).
2. Debris present inside ADJUSTMENT
KNOB (33).
3. Debris or corrosion present on or
inside ADJUSTMENT SPRING (27).
1. FRONT COVER (2) not sufciently
tightened into HOUSING ASSEMBLY
(5).
2. LEVER ARM (17) slack present.
3. ORIFICE (11) incorrectly adjusted.
1. Gravel or sand trapped inside HOUS-
ING ASSEMBLY (5).
2. LEVER ARM (17) slack present.
1. LOCK NUT (20) overtightened onto
POPPET (15) Shaft, causing excessive
POPPET SPRING (16) tension.
2. LOCK NUT (20) insufciently tightened
onto POPPET (15) Shaft, causing
LEVER ARM (17) slack.
3. LEVER ARM (17) bent.
4. ORIFICE (11) incorrectly adjusted.
5. Insufcient intermediate pressure from
First Stage.
1. LEVER ARM (17) bent.
2. Excessive intermediate pressure.
3. Damaged or worn POPPET SEAT
(14).
4. Damaged ORIFICE (11).
5. LOCK NUT (20) overtightened onto
POPPET (15) Shaft.
6. WASHER (18) bent or distorted.
7. ORIFICE (11) incorrectly adjusted.
8. POPPET SPRING (16) worn or weak-
ened.
9. SWIVEL COUPLING (12) not suf-
ciently tightened into Inlet Tube of the
HOUSING ASSEMBLY (5).
10. Trapped debris.
1. Replace with new.
2. Replace with new.
3. Replace with new.
4. Remove and clean.
5. Tighten until secure and properly
aligned.
6. Replace with new.
7. Tighten or install.
1. Disassemble and clean.
2. Flush out or disassemble if neces-
sary to clean.
3. Disassemble to clean or replace
with new as needed.
1. Tighten COVER RING (1) until
secure.
2. Tighten LOCK NUT (20) onto POP-
PET (15) Shaft. (Refer to Tuning
Section.)
3. Adjust ORIFICE (11) to correct
contact. (Refer to Tuning Section.)
1. Remove and clean.
2. Tighten LOCK NUT (20) onto POP-
PET (15) Shaft. (Refer to Tuning
Section.)
1. Replace with new and readjust.
(Refer to Tuning Section.)
2. Tighten to correct Spring load and
LEVER ARM height. (Refer to Tun-
ing Section.)
3. Replace with new.
4. Adjust to correct contact. (Refer to
Tuning Section.)
5. Refer to First Stage Troubleshooting
Chart.