Aqua Lung Legend LX Second Stage Technical Maintenance Manual page 5

4. Using the Retaining Ring Tool (pn 129001), unscrew and
remove the diaphragm retainer (5). Lift out the washer (6)
and diaphragm (7).
5. Using an ¹¹₁₆" wrench, unscrew the retaining nut (15).
Remove the heat exchanger (16).
6. Turn the adjustment knob counterclockwise until it stops.
Press the lever (25) against the valve body (23). While
keeping the lever depressed, grasp the knob and pull the
valve body assembly out of the box bottom (9). Remove
the valve body o-ring (17) that will probably be left behind
in the left side of the box bottom as you look at it.
7. Grasp the venturi lever (19) and pull it out of the box bot-
tom. Remove the o-ring (18) from the venturi lever.
F
NOTE: The venturi lever may have come out with
the valve body in step 6. If this is the case, depress
the lever and slide the lever off from right to left.
8. Turn the knob clockwise
(inward) one turn. The
pin (24) should drop out.
If the pin remains in the
valve body, use a 1/16"
dowel or punch to push
it partially out, then use
needlenose pliers to com-
pletely remove it from the
valve body.
9. Unscrew the adjustment knob (34) and completely
remove it from the valve body. Tilt the knob so the adjust-
ment pin (31) falls out.
10. Remove the o-ring (32) from the adjustment knob. Using
the LX tool (pn 129001), unscrew the plug (37). Remove
the grip (34) by pulling it straight off the adjustment knob.
11. Using a 4mm hex wrench, remove the adjustment screw
(36). Remove the o-ring (35) from the adjustment screw.
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