REGULATORS
ALPHA 8 SECOND STAGE
© 2002 Design, 2005
OCEANIC
®
Product Service Guide
Doc. 12-2805-r02 (8/19/10)
PG-9
2. Pressurize the Regulator with a pure air source of 3,000 PSI (206
BAR) and listen to determine that a slight air flow is initially
present.
3. Use the In-Line tool to turn the ORIFICE (2) clockwise with very
small fractions of a turn, just until airflow is no longer present, and
pause to listen carefully for airflow or leakage after each adjust-
ment. Adjust the ORIFICE as required to achieve the desired
Opening Effort.
NOTE: Turning the ORIFICE (2) further than necessary to
stop airflow will result in LEVER ARM (9) slack and excessive
spring load tension, impairing proper performance.
CAUTION: To avoid cutting the POPPET SEAT (5) with the
Knife Edge of the ORIFICE (2), depress the Purge Button
while turning the ORIFICE in or out.
4. Hold the Second Stage with the MOUTHPIECE (18) facing
directly down, and gently shake it up and down, listening care-
fully for any rattle that may be present, indicating LEVER ARM
slack. If slack is indicated, perform the following procedure:
a. Remove the COVER RING (17), FRONT COVER (16), and
DIAPHRAGM (15).
b. Purge the Regulator of all air.
c. Depress and hold the LEVER ARM (9) to remove the INLET
COUPLING (3) (with Hose and In-Line Adjustment Tool still
attached) from the Inlet Tube, using a 3/4" open end wrench.
NOTE: The Cone of the ORIFICE (2) will now be exposed,
protruding through the INLET COUPLING (3), and must be
protected to prevent damage to its delicate seating surface.
d. Insert a 1/4" open end wrench into the HOUSING (8) to hold the
LOCK NUT (12) secure, while using the Poppet Tool to turn the
POPPET (6) clockwise 1/8 turn. Use the correct method given
in step 9 of the Reassembly Procedure to replace the INLET
COUPLING (3) after each adjustment, and again determine
whether slack is eliminated.
NOTE: Avoid tightening the LOCK NUT (12) any further than
is necessary to eliminate LEVER ARM (9) slack. It may be
necessary to repeat step d. several times to arrive at the
desired setting (Opening Effort).
5. Purge the Regulator of all air to remove the In-Line Adjustment
Tool and connect the LP Hose directly onto the INLET COU-
PLING (3) using 2 wrenches as prescribed in Step 14 of the
Reassembly Procedure.
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