Second Stage (Lv2) Reassembly - Aqua Lung SEA LV2 Technical Manual

5. Place the diaphragm (48) on top of the lever (60) inside the
box bottom (54). Make sure the edges of the diaphragm are
seated below the threads inside the box bottom. Lay the flat
side of the ring cover support (47) on top of the diaphragm.
6. Place the front cover (44) on
top of the ring cover support
(47). Screw the retaining ring
(46) or hard cover (45) onto the
box bottom (54) until hand tight.
7. Install the mouthpiece (49)
onto the box bottom (54).
Loosely fasten the clamp
strap (50) over the groove at
the base of the mouthpiece.
Position the clamp strap tab
on the MP hose side of the
mouthpiece. Pull the clamp
strap tight and trim the excess
strap using diagonal pliers.
Ensure the excess strap has
been cut so it is flush with the
tab on the clamp strap.
8. Thread the MP hose (11)
onto the inlet fitting (51). Hold
the inlet fitting with a 3/4"
thin wrench and use a 11/16"
crowfoot and inch pound
torque wrench to apply 60
in-lbs (6.8 Nm) of torque to
the MP hose fitting.

Second Stage (LV2) Reassembly

1. Install the exhaust valve (68) into the box bottom (69) by
inserting the stem through the center hole of the exhaust
port. Pull the stem through until the barb is on the opposite
side of the hole in the exhaust port. Examine the flap of the
exhaust valve to make sure it is laying flat and is not distorted
or folded under. Use a pair of small diagonal pliers to trim the
stem so it is only about 1/4" long.
2. Using your fingers, screw
the exhaust valve cap (67)
onto the box bottom (69)
until finger tight.
3. Insert the valve body
a s s e m b l y i n t o t h e b ox
bottom (69) with the lever
(60) facing upward.
4. Press down on the lever (60) and thread the inlet fitting (51)
into the valve body (59) until hand tight. It may be necessary
to press in on the valve body to hold it in place while attach-
ing the inlet fitting. Use a 3/4" socket and inch pound torque
wrench to apply 50 in-lbs (5.6 Nm) of torque to the inlet fitting.
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