Attachment Of First Stage To Second Stage Regulators - Aqua Lung CONSHELF XIV Technical Manual

18
12
If not using a test bench, fit the mouthpiece (24) onto the
box bottom, and fasten the mouthpiece in place with a new
mouthpiece clamp (23). The lock tab on the mouthpiece clamp
should be aligned to the side air inlet boss of the box bottom. Tighten
with pliers and snip the extra length with wire cutters. If using a test
bench, do not fit the mouthpiece to the box bottom.
13
Second stage with port plug only:
Install a new o-ring (17) onto the second stage port plug
(18). Thread the port plug into the second stage and tighten with
a in.lb torque wrench and 5/32" hex key adapter (PN 5570A52)
to 15 in/lbs (1.7 Nm).
Note: If you do not have the port plug box bottom, do not reinstall
the diaphragm and box top (8 & 4) until final adjustment of second
stage assembly is completed.
14
Install the diaphragm (8), box top (4) and ring clamp (5). In-
stall the clamp screw (6) using a #2 Phillips screwdriver (PN
9-47436). Tighten the screw hand tight until firm. A gap between
the clamp ends of up to 1/8" is acceptable.
This Concludes the assembly of the Second
Stage Regulator.
attachment of First Stage To Second Stage
Regulators
1
Install the two lubricated o-rings (25 & 27) on the MP hose
(26). O-ring (25) is in the 2nd stage kit and o-ring (27) is in the
1st stage kit.
2
Attach the hose (26) to one of the MP ports on the first stage body
(16) using a 9/16" crow foot and in/lb. torque wrench. Tighten
the hose clockwise to a torque of 40 in/lbs (4.5 Nm).
Note: Before placing the Conshelf regulator back in service, the following
sequence of adjustments is necessary. The use of a flow test bench is the
preferred method to insure the quality of your adjustments. This will enable
the service technician to check critical performance requirements of the
regulator series more precisely. If no test bench is available to the service
technician, use of a SCUBA cylinder, the less preferred testing procedure
will follow this section.
3
Connect the first stage regulator to a source of MP (500 psig)
breathing air. While firmly holding the free end(s) of the second
stage hose(s), carefully open the air source control valve allowing
a small quantity of air to flow through the open hose(s). This will
flush any dust or debris from the interior of the hose(s).
4
Close the air source control valve and attach the second stage
regulator(s) to the free end of the second stage hose(s). While
holding the inlet fitting (11) with a 3/4" wrench, use an 11/16" crow
foot and in/lb torque wrench to tighten the swivel nut clockwise to a
torque of 40 in/lbs (4.5 Nm).
Conshelf XIV Technical Manual