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SYMPTOM
* Restricted airflow and
inhalation resistance through
complete system.
* Air leakage detected from
beneath the adjustment cup,
inside the end cap.
* Air leakage detected from
receiver.
* Insufficient intermediate
pressure.
* Excessive intermediate pres-
sure/Intermediate pressure
creeps.
© 2002 Design 1997
REGULATORS
DX3 BALANCED DIAPHRAGM FIRST STAGE
TROUBLE SHOOTING
POSSIBLE CAUSE
1. Cylinder valve not completely
opened.
2. Cylinder valve requires service.
3. Cone filter(5,13) is contami-
nated.
1. End cap(36,41) is loose.
2. Diaphragm(34) is worn or
damaged.
3. Diaphragm washer(35) is
damaged or incorrectly seated.
4. Seating surface inside
body(31) is damaged.
1. Receiver o-ring(25) is damaged
or worn.
2. Seating surface inside the
body(31) is damaged.
3. Seating surface on the re-
ceiver(34) is damaged.
1. End cap(36,41) loose.
2. First stage improperly
adjusted.
3. Ambient spring(38) is weak-
ened or damaged.
4. Seating surface of body(31)
beneath diaphragm is
damaged.
1. First stage improperly adjusted.
2. HP seat(28) damaged or worn.
3. HP seat o-ring(26) damaged or
worn.
4. Seating surface of HP seat(28),
or receiver(24), or cone(29), or
body(31) is damaged.
5. Seat spring(27) is weakened or
damaged.
PG-1
TREATMENT
1. Open valve completely.
2. Connect regulator to a
different cylinder.
3. Replace with new and
perform a complete service.
1. Tighten end cap onto body,
using prescribed torque
value in reassembly proce-
dure.
2. Replace with new.
3. Reseat or replace with new.
4. Replace body with new.
1. Replace with new.
2. Replace with new.
3. Replace with new.
1. Tighten end cap onto body,
using prescribed torque value
in reassembly procedure.
2. Readjust according to
procedure specified in
reassembly procedure.
3. Replace with new.
4. Replace body with new.
1. Readjust according to
reassembly procedure.
2. Replace with new.
3. Replace with new.
4. Replace with new.
5. Replace with new.
R = Revision
Doc. 12-2206-r01 (10/00)
OCEANIC
OCEANIC
Product Service Guide
Product Service Guide
OCEANIC
OCEANIC® Product Service Guide
OCEANIC
Product Service Guide
Product Service Guide
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Summary of Contents for Oceanic DX3
- Page 1 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE TROUBLE SHOOTING SYMPTOM POSSIBLE CAUSE TREATMENT * Restricted airflow and 1. Cylinder valve not completely 1. Open valve completely. inhalation resistance through opened. 2. Connect regulator to a complete system. 2. Cylinder valve requires service.
- Page 2 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE DISASSEMBLY PROCEDURE NOTE: Be sure to check and record the intermediate pressure and perform the Leak Detection Test outlined in the Initial Inspection Procedures prior to disassembling the regulator. Review the troubleshooting section to gain a better idea of which internal parts may be worn, and to better advise your customer of the service that is needed.
- Page 3 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE NOTE: Perform step 10 only if an Environmental Protection Kit has been installed. 10. Environmental Protection Kit Disassembly: A. Turn the plastic environmental cap(44) counter clockwise by hand to loosen and remove. B. Gently peel the lip of the environmental diaphragm(43) away from the brim of the end cap(41) and lift out to remove.
- Page 4 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE 17. Remove the button(33) and inspect for signs of wear or distortion. Discard if found. 18. Remove all port plugs(20 & 22) with a 5/32" hex key. Remove and inspect the port plug o-rings(21 & 23) for any signs of decay.
- Page 5 WARNING: Use only genuine Oceanic parts, subassemblies, and components whenever assembling Oceanic products. DO NOT attempt to substitute an Oceanic part with another manufacturer’s, regardless of any similarity in shape, size, or appearance. Doing so may render the product unsafe, and could result in serious injury or death of the user.
- Page 6 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE D. Lubricate and install the saddle o-ring(18) onto the yoke retainer(7) at the base of the threads, and the yoke retainer o-ring(8) into the groove on the end. E. Insert the threaded end of the yoke retainer(7) through the yoke(3), facing opposite the end which holds the knob assembly(1).
- Page 7 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE 2. Place the stem of the button(33) directly into the center hole in the body(31), ensuring that it enters without any restriction. 3. Position the diaphragm(34) flat, directly over the opening of the body(31). Gently push the edges of the diaphragm down inside the internal threads of the body, one thread at a time.
- Page 8 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE 12. Lightly lubricate and install the receiver o-ring(25) onto the re- ceiver(24) and the HP seat o-ring(26) into the inner bore of the receiver. Lightly lubricate the threads of the receiver(24). 13. Apply a very light film of lubricant to both ends of the HP seat spring(27) and the lower 1/4"...
- Page 9 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE 2. Adjust the intermediate pressure, if necessary, to read 142- 148PSI by turning the adjustment cup(40) clockwise to increase the pressure or counter clockwise to decrease it. NOTE: Turn the adjustment cup no more than 1/8 of a turn at...
- Page 10 REGULATORS DX3 BALANCED DIAPHRAGM FIRST STAGE Dia. Dia. Part # Description Part # Description Yoke Version Environmental Kit Version (P/N 40.4045.97) 6307.07 Knob Assembly 6525.3 Cap - Environmental End (satin finish) 6307.13 Knob Assembly (Nitrox - Yellow) 6516 Piston - Transfer...
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