Aqua Lung S.E.A. LV-2 Technical Manual page 14

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12. Install new, lubricated o-rings (2) into the grooves
located on either side of the center hole of the swivel port
plug (1). Install a new, lubricated o-ring (3) on the threaded
end of the swivel port plug.
13. Pass the threaded end of the swivel port plug through
the hose swivel, then through the spacer (5). Make sure that
both o-rings (2) are covered by the hose swivel. Thread the
swivel adapter into the first stage body. Attach a 3/16" hex
key socket to a torque wrench and torque the swivel port
plug to 60±3 in/lbs.
5
2
14. Place a new washer (18) onto the valve stem (19), fol-
lowed by the metal spacer (17) and o-ring (16).
NOTE: Before continuing, closely examine the
back up ring (15). You will note that it has a flat
side and a concave side. For correct assembly
the concave side should be against the o-ring
(16), as shown in the picture below.
SEa lV2 Technical Maintenance Manual
15. Install lubricated back-up ring (15).
Backup ring
O-ring
16. Lubricate the threads of a new HP seat (20) with Christo-
®
Lube . Using the squared end of the stem (19), screw a new
valve seat (20) into the first stage body until finger tight. Leave
the stem in the HP seat. Place the handwheel over the stem
and tighten the valve seat. Remove the handwheel (10).
17. Install a new, lubricated o-ring (14) onto the bonnet (13)
so that the o-ring fits into the groove located above the larger
threads. Lubricate the bonnet threads, then pass the bonnet
over the stem and thread it into the body.
18. Attach a 3/4" medium deep-well socket to a torque
wrench and torque the bonnet to 90±3 in/lbs.
19. Place the washer (11) over the stem, against the bonnet.
With the rounded edge of the indicator ring (12) facing out-
ward, lightly thread the indicator ring onto the bonnet.