REGULATORS
ZX SECOND STAGE
©2002 Design, 2005
PG-6
OCEANIC
®
Product Service Guide
Doc. 12-2808-r01 (2/19/05)
21. Remove the VALVE HOUSING O-RING (28) by squeezing it with
your fingers and working it over the molded portion of the VALVE
HOUSING, not over the Threads. Inspect the O-RING for signs
of decay or distortion. Discard it if found.
22. Using a narrow slotted blade screwdriver, remove the ORIFICE
(31) by turning it counter clockwise inside the VALVE HOUSING
(26). When it has disengaged completely from the Threads,
press it out with the use of a cotton swab (Fig. 9).
A. Use caution to avoid nicking or scratching the delicate Knife
Edge of the ORIFICE as this is done.
B. Remove ORIFICE O-RING (32) and inspect it for signs of
decay or distortion. Discard it if found..
C. Inspect the ORIFICE carefully with the use of a magnifier to
ensure that it is perfectly free of any scoring or nicks. If found,
discard and DO NOT attempt to reuse it.
23. Using a 3/32" hex key, remove the EXHAUST COVER SCREWS
(7).
24. Once the EXHAUST COVER (5) is disengaged from the lower
Alignment Tab, remove it from the HOUSING (4).
25. Inspect the overall condition of the HOUSING (4), and the
EXHAUST COVER (5) to ensure they are free of any stress
cracks or other distortions. Ensure that all Threading on the
HOUSING is in good condition. Discard either if any distortion or
damage is found.
26. Using a soft probe, inspect the condition of the EXHAUST
VALVE (6) to ensure that it is supple and free of any tears or
corrosion, and that it seals completely around the Seating
Surface of the HOUSING (4).
NOTE: If the EXHAUST VALVE is in good condition, it is not
necessary to remove it. The HOUSING may be cleaned with
the EXHAUST VALVE attached.
27. If the EXHAUST VALVE (6) requires replacement, remove it by
grasping it at the Flange and pulling it straight out, snipping the
Retainer Stem if necessary. Discard it.
28. Inspect the VENTURI SWITCH (30) for smooth even operation,
ensuring there is no resistance throughout its range of move-
ment. Inspect for signs of trapped debris .
NOTE: If the VENTURI SWITCH is in good condition, it is not
necessary to remove it. The HOUSING (4) may be cleaned
with the VENTURI SWITCH attached.
29. To remove the VENTURI SWITCH (30), grasp it by the Adjust-
ment Tab and pull it straight out of the HOUSING (4) (Fig. 10).
Fig. 9
Fig. 10
