Aqua Lung Calypso Troubleshooting Guide download pdf (Page 4)

GENERAL CONVENTIONS

Unless otherwise instructed, the following terminology and tech-

niques are assumed:

1. When instructed to

remove

unscrew

, or

loosen

a threaded

part, turn the part counterclockwise.

2. When instructed to

install

screw in,

tighten

a threaded

part, turn the part clockwise.

3. When instructed to remove an o-ring, use the pinch method

(see ﬁ gure) if possible, or use a brass or plastic o-ring

removal tool. Avoid using hardened steel picks, as they may

damage the o-ring sealing surface. All o-rings that are re-

moved are discarded and replaced with brand new o-rings.

1. While holding the inlet

ﬁ tting (13) of the second

stage secure with a ¾”

(19mm) open end wrench,

apply 11/16” (17mm) open-

end wrench to the female

ﬁ tting of the LP hose (25).

Turn the ﬁ tting counter-

clockwise to loosen and

remove the hose from the

second stage. Remove the

O-rings (24&27) from the

hose and discard. Set the

hose aside.

2. Slide back the hose pro-

tector (26) and check that

the crimps look good and

that the hose is not pulling

out. If the hose is torn or is

pulling out of the crimps, it

should be replaced.

3. To remove the mouthpiece clamp (5), simply lift the lever

on the cam latch with a screwdriver or thumbnail. Pull the

mouthpiece (6) off. Inspect the mouthpiece to ensure it is

free of any tears or cuts that may cause leakage of water

into the second stage or other discomfort. Discard the

mouthpiece or set it aside to be reused, depending on its

condition.

4. The following acronyms are used throughout the manual:

MP is Medium Pressure; HP is High Pressure; LP is Low

Pressure.

5. Numbers in parentheses reference the key numbers on the

exploded parts schematics. For example, in the statement,

“...remove the o-ring (8) from the venturi switch (9)...”, the

number 8 is the key number to the venturi switch o-ring.

DISASSEMBLY PROCEDURES

NOTE:

Before performing any disassembly, refer to the

exploded parts drawing, which references all mandatory

replacement parts. These parts should be replaced with

new, and must not be reused under any circumstances

- regardless of the age of the regulator or how much use it

has received since it was last serviced.

CAUTION: Use only a plastic or brass o-ring

removal tool (p/n 944022) when removing o-rings

to prevent damage to the sealing surface. Even

a small scratch across an o-ring sealing surface

could result in leakage. Once an o-ring sealing

surface has been damaged, the part must be

replaced with new. DO NOT use a dental pick, or

any other steel instrument.

Pinch Method

Press upwards on sides

of o-ring to create a

protrusion. Grab o-ring

or insert o-ring tool at

protrusion.

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Aqua Lung Calypso Troubleshooting Guide Page 4

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