Oceanic DX4 Service Procedure
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Oceanic DX4 Service Procedure

Oceanic DX4 Service Procedure

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This DX4 Product Service Procedure conveys a list of components and service proce-
dures that reflect the DX4 as it was configured at the time of this writing (5/23/02).
It also contains Supplemental Information intended to assist the Authorized Oceanic
Regulator Service Technician who is servicing a DX4 configured with older components.
© 2002 Design 2000
REGULATORS
DX4 BALANCED DIAPHRAGM FIRST STAGE
OCEANIC
DX4
(BALANCED DIAPHRAGM)
SERVICE
PROCEDURE
PG-1
®
Doc. 12-2203-r02 (5/23/02)
OCEANIC ® Product Service Guide

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Summary of Contents for Oceanic DX4

  • Page 1 This DX4 Product Service Procedure conveys a list of components and service proce- dures that reflect the DX4 as it was configured at the time of this writing (5/23/02). It also contains Supplemental Information intended to assist the Authorized Oceanic Regulator Service Technician who is servicing a DX4 configured with older components.

  • Page 2: General Procedures

    REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE CONTENTS TROUBLESHOOTING .................................. 2 DISASSEMBLY PROCEDURE ..............................3 REASSEMBLY PROCEDURE ..............................7 FINAL ADJUSTMENT ................................11 ENVIRONMENTAL KIT REASSEMBLY ............................ 11 PARTS LIST AND EXPLODED VIEW DIAGRAM ........................12 SUPPLEMENTAL INFORMATION ............................. 13 GENERAL PROCEDURES REFER TO ................................

  • Page 3: Troubleshooting

    REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE TROUBLE SHOOTING SYMPTOM POSSIBLE CAUSE TREATMENT 1. Open valve completely. * Restricted airflow and inhala- 1. Cylinder valve not completely 2. Connect Regulator to a different tion resistance through opened. cylinder. complete system. 2. Cylinder valve requires service.

  • Page 4: Disassembly Procedure

    REGULATORS DX4 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 5 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE NOTE: Perform step 10 only if an Environmental Kit has been installed. 10. Environmental Kit Disassembly: A. Turn the plastic ENVIRONMENTAL CAP (42) counter clock- wise by hand to loosen and remove. B. Gently peel the lip of the ENVIRONMENTAL DIAPHRAGM (41) away from the Brim of the END CAP (39) and lift out to remove.
  • Page 6 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE CAUTION: DO NOT attempt to remove the DIAPHRAGM (32) with the use of a metallic instrument. Doing so will seriously damage the brass seating surface of the BODY (30). 17. Remove the BUTTON (31) and inspect for signs of wear or distortion.

  • Page 7: Reassembly Procedure

    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 8 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE NOTE: Close examination of the RETAINING CLIP (3) will show that one side is slightly rounded and the other is flat. Install with the flat side facing out of the YOKE RETAINER (6) to ensure greater holding strength.
  • Page 9 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE 3. Place the stem of the BUTTON (31) directly into the Center Hole in the BODY (30), ensuring that it enters without any restriction (Fig. 14). 4. Position the DIAPHRAGM (32) flat, directly over the Opening of the BODY (30).
  • Page 10 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE 12. Guide the HP CONE/Tool Assembly into the High Pressure Chamber of the BODY (30), taking care to align the HP CONE (28) with the Recess in the High Pressure Chamber properly (Fig. 17).

  • Page 11: Final Adjustment

    REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE FINAL ADJUSTMENT 1. Connect a recently calibrated Low Pressure Test Gauge to a low pressure Hose, and connect the First Stage with Second Stage and Low Pressure Test Gauge to a pure breathing gas source of 3000 psi.
  • Page 12 REGULATORS DX4 BALANCED DIAPHRAGM FIRST STAGE Dia. Dia. Part # Description Part # Description YOKE VERSION 40.4045.99 KIT, ENVIRONMENTAL 6307.07 SCREW, YOKE (BK) 6613 CAP, ENVIRONMENTAL END 6562 YOKE 6516 PISTON, TRANSFER 3530 CLIP, RETAINING 6511 DIAPHRAGM, ENVIRONMENTAL 3545 FILTER, CONE 6302.3...

  • Page 13: Supplemental Information

    DX4 BALANCED DIAPHRAGM FIRST STAGE SUPPLEMENTAL INFORMATION Due to design enhancements that have been made since the DX4 was originally released, the unit being serviced may not have the same components previously described. The intent of this Supplemental Information is to assist the Oceanic Regulator Service Technician with identification of previous component parts and provide guidelines for their reuse or replacement.

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