Oceanic ALPHA 8 - Page 4

REGULATORS
ALPHA 8 SECOND STAGE
© 2002 Design, 2005
OCEANIC ® Product Service Guide
Doc. 12-2805-r02 (8/19/10)
PG-4
DISASSEMBLY PROCEDURE
NOTE: Be sure to perform the steps outlined in the Initial
Inspection Procedures (Doc. No. 12-2202) prior to disassem-
bling 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.
1. Snip the plastic TIE WRAP (19) that holds the MOUTHPIECE
(18), and remove the MOUTHPIECE. Inspect the condition of
the MOUTHPIECE to ensure that it is supple and free of any tears
or corrosion. Discard if found.
2. Remove the Hose from the Second Stage, using an 11/16" open
end wrench, while holding the Hex portion of the INLET COU-
PLING (3) secure with a 3/4" open end wrench.
3. Using a Universal Front Cover Tool, remove the COVER RING
(17) to expose the FRONT COVER (16) . By lifting it straight up
and out, remove the FRONT COVER to expose the DIAPHRAGM
(15).
4. Grasp the DIAPHRAGM (15) by the raised Edges of the Center,
and gently lift it out with a slight upward twist to remove. (Fig. 1)
Inspect the DIAPHRAGM to ensure it is supple and free of any
tears, corrosion, or other distortion. Discard if found.
5. Depress the LEVER ARM (9). While holding it down, remove the
INLET COUPLING (3) in a counterclockwise direction using a
3/4" open end wrench (Fig. 2). Remove the COUPLING O-RING
(4) from the INLET COUPLING and inspect for any signs of
decay. Discard if found.
6. Using a narrow slotted blade screwdriver, remove the ORIFICE
(2) by turning it counter clockwise inside the INLET COUPLING
(3). When it has disengaged completely from the threads, press
it out with the use of a cotton swab (Fig. 3). Use caution to avoid
nicking or scratching the delicate knife edge of the ORIFICE as
this is done.
Remove and discard the ORIFICE O-RING (1). 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.
7. Using a 1/4" open end wrench, hold the LOCK NUT (12) secure,
and turn the POPPET (6) out of the LOCK NUT in a counter
clockwise direction using a Poppet Tool. To avoid a sudden
ejection as the POPPET disengages from the LOCK NUT, apply
continuous slight inward pressure on the POPPET as it is turned.
8. Remove the POPPET (6), POPPET SPRING (7), WASHER (10),
LEVER ARM (9), SPACER (11), and LOCK NUT (12) from the
HOUSING (8). Discard the LOCK NUT and WASHER.
Fig. 1
Fig. 2
Fig. 3