Aqua Lung FIRST STAGE Service Manual page 9

12.
a. Clamp the tool into a
vice so that the DIN
connection is upward
Remove the dust cap
(129608).
Take a Din / Yoke
adapter (p/n 12523
and thread it onto the
hand wheel.
Use a 4 mm Allen key to
unscrew the shutter valve
(129202 / 129714 / 129207).
Unscr w the adapter. e
Remove the spring
and the shutter crown
b. Using a 7/16 socket,
remove the DIN screw
(129213).
Service Manual 1st stage Legend
Rev. 12/2011
s.
7)
Service manual First stage Legend
c. Remove the DIN screw
(129213), the handwhee
(129619 / 129722) and
the cap (129608).
d . Use a 17mm spanner to
unscrew the filter holder
(129214).
If the filter holder remains
on the DIN screw, unscrew
it using a 17mm flat
spanner by holding th
DIN screw with a 7/16"
socket.
e. Remove the o-ring
(124703) and the filte
(129209) from the filter
holder.
f. Remove the o-ring
(444243) from the DIN
screw.
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