Aqua Lung S.E.A. LV-2 Technical Manual page 20

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12. Using a 1/4" nut driver, tighten the locknut until air starts
to leak. As soon as a leak is detected, loosen the locknut
until the leak stops, then continue to loosen for another 1/4
to 1/2 turn.
Tighten until air leaks.
13. Close the SEA LV-2 valve by turning the handwheel
clockwise. Purge the air from the system by pressing down
on the lever. Remove the valve/inlet assembly from the hose.
While depressing the lever with your finger, unscrew the inlet
fitting from the valve body.
14. With the lever facing upward, reinsert the valve body (47)
back into the box bottom (63). Make sure the flat sides of the
valve body (47) are within the plastic slot. This will prevent
the valve body from rotating when installing the inlet fitting.
15. While depressing the lever (45), lubricate and thread the
inlet fitting (52) into the valve body (47). It may be necessary
to press inward on the valve body to prevent it from rotating.
Attach a 3/4" socket to a torque wrench and torque the inlet
fitting (52) to 50±3 in/lbs.
Loosen until air leak
stops, then loosen
1/4-1/2 turn more.
Press lever to
relieve pressure.
Red indicates "off".
SEa lV2 Technical Maintenance Manual
16. Place the diaphragm (43) over the lever, making sure the
perimeter of the diaphragm is seated below the threads and
against the box bottom (63). Place the purge cover (61) on
top of the diaphragm.
17. Using the Micra Retaining Ring Tool (p/n 100188), screw
the retaining ring (60) into the box bottom (63) until finger
tight. Screw the front cover (59) onto the box bottom until
hand tight.
18. Install the mouthpiece (66) onto the box bottom and
position as required. Loosely fasten a tie-strap clamp (55)
over the slots at the base of the mouthpiece. Orient the
clamp buckle to the side of the mouthpiece with the hose.
Pull the clamp tight and snip the excess strap flush with the
buckle using a small pair of diagonal cutters (p/n 9-45771).
19. Thread the hose onto the inlet fitting. Attach an 11/16"
crowfoot to a torque wrench. While holding the inlet fitting
(52) with the thin 3/4" wrench, torque the hose to 45±3 in/lbs.
20. Slowly open the SEA LV-2 valve to pressurize the sys-
tem. Ensure there is no leakage from the second stage.