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4
5.
Do not attempt to reuse mandatory replacement parts
under any circumstances, regardless of the amount of
use the product has received since it was manufactured
or last serviced.
6.
When reassembling, it is important to follow every torque
specification prescribed in this manual, using a calibrated
torque wrench. Most parts are made of either marine
brass or plastic, and can be permanently damaged by
undue stress.
GENERAL CONVENTIONS
Unless otherwise instructed, the following terminology and
techniques are assumed:
1.
When instructed to remove, unscrew, or loosen a thread-
ed part, turn the part counterclockwise.
2.
When instructed to install, screw in, or tighten a threaded
part, turn the part clockwise.
3.
When instructed to remove an o-ring, use the pinch
method (see figure) 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 removed are discarded and replaced with brand
new o-rings.
Pinch Method
Press upwards on sides of o-
ring to create protrusion. Grab
o-ring or insert o-ring tool at
protrusion to remove.
4.
The following acronyms are used throughout the manual:
MP is Medium Pressure; HP is High Pressure; IP is Inter-
mediate Pressure.
5.
Numbers in parentheses reference the key numbers on
the exploded parts schematics. For example, in the state-
ment, "...remove the o-ring (8) from the...", the number 8
is the key number to the crown o-ring.
DISASSEMBLY PROCEDURES
F
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 (PN 944022) when removing o-
rings to prevent damage to the sealing surface.
Even a small scratch across an o-ring seal-
ing 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.
FIRST-STAGE DISASSEMBLY
1.
Using a ⁹⁄₁₆-inch open-end wrench, turn the wrench coun-
terclockwise and remove the intermediate-pressure hose
(26) from the first-stage body (Item 16). Also remove
the high-pressure gauge hose with a ⁵⁄₈-inch open-end
wrench and, if present, the low-pressure inflator hose with
a ¹⁄₂-inch open-end wrench.
2.
While holding the inlet fitting (Item 11) with a ³⁄₄-inch
open-end wrench, use an ¹¹⁄₁₆-inch open-end wrench to
unscrew counterclockwise and remove the swivel end of
the intermediate-pressure hose.
3.
Remove and discard the O-rings (Items 25 and 27) from
the intermediate-pressure hose.
4.
If the high-pressure hose of the pressure gauge, requires
the use of the special H.P. adapter (Item 22), remove the
adapter by turning it counterclockwise, using an ¹¹⁄₁₆-inch
wrench. Remove and discard the adapter O-ring.
5.
Remove and discard all O-rings of the low-pressure infla-
tor and/or the high-pressure hose of the pressure gauge.
CAUTION: NEVER attempt to secure the first-
stage body by direct clamping in a vise. This
will result in damage to the regulator body
requiring replacement of this part.
CAUTION: Empty CO
mounting should not be an old rusty cartridge
from a Buoyancy Control Device. A new car-
tridge should be placed in a CO
nism and discharged.
6.
Screw an empty CO
2
the low-pressure ports on the first-stage body (Item 16).
Mount the first-stage body in a bench vise, mainspring
side facing upward, by means of the CO
Figure 1).
Figure 1
7a.
Standard Conshelf (Non-Supreme Model): Using a large
flat-bladed screwdriver, place the blade in the slot of the
adjustment screw (Item 31). Turn the screwdriver coun-
terclockwise and remove the adjustment screw. Lift out
the washer (Item 30). Next remove the mainspring (Item
29).
Conshelf XIV Service Manual
cartridge used for vise
2
firing mecha-
2
cartridge clockwise into one of
cartridge. (See
2
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