Aqua Lung Octopus Manuel d'entretien - Page 5

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1. Disassembly Procedures

Calypso/Titan Second Stage Service Manual

While holding the second stage secure, firmly grasp the

collar of the front cover (1) which is seated over the venturi

control switch (9), opposite of the inlet side. Stretch the col-

lar over the venturi control switch, and lift the front cover off

the box bottom (4) until the opposite collar can be removed

from the inlet fitting (13). Closely examine the front cover to

check for any tears, distortion, deterioration, or other signs

of damage. Replace it if found, or set it aside if it is in reus-

able condition.

Lift out the sealing ring

(2) and diaphragm (3)

from the box bottom,

and closely inspect the

diaphragm to ensure that

it is perfectly round and

free of any tears, deterio-

ration, or other damage. If

deterioration or damage

is found, discard the

diaphragm and do not

attempt to reuse.

Once the front cover (1) has been removed, the release

latch for the exhaust valve cover (11) becomes exposed.

Using your finger, lift the release latch and swing the ex-

haust valve cover off of the lugs on the box bottom (4).

Inspect the exhaust valve

and its seating surface

underneath. The valve

should be clean and

supple. It should be free of

any tears, holes or defects

of any kind. It should have

well defined edges. If it is

dirty or compromised in

any way, it must get replaced. The seated surface under-

neath the valve must be clean.

Using your finger, reach

into the box bottom (4)

and remove the retain-

ing clip (7) for the venturi

switch.

Grasp the venturi switch

(9) between your thumb

and forefinger and pull

it straight out of the box

bottom (4).

10.

Remove and discard the

O-ring (8) from the venturi

switch (9), and closely ex-

amine the O-ring groove

of the venturi switch to

check for any nicks or

scratches. Discard if

found, or set it aside if it

is in reusable condition.

11.

While holding the box bottom (4) secure, apply a 3/4"

(19mm) open end wrench to the inlet fitting (13). While

depressing the lever (18), carefully turn the fitting counter-

clockwise to loosen and remove. Remove and discard the

o-ring (12).

12.

Apply a medium blade

screwdriver to the slotted

head of the crown (14)

inside the inlet fitting (13),

and hold the inlet fitting

secure while turning the

crown counter-clockwise to

disengage the threads.