Service manual

FIRST TO DIVE 9
m.kg
23. Refit the mouthpiece (17) onto the casing. If it is a
Comfobite mouthpiece, check that the support section is
on top. Fit the mouthpiece strap (29) into its groove.
The collar lever should point down on the hose side.
24. If the regulator is a Legend Supreme, fit the lip shield
(36) over the mouthpiece and against the mouthpiece
strap.
FINAL CHECKS
1. Put the regulator under pressure with a 200 bar (±10
bar) supply.
2. Opening effort check. Apply an increasing inhalation
flow. When the MP starts to fall, note the effort reading
and compare it with the limits shown on Table 5.
Checking specifications. If the opening effort is
outside the limits then check Table 1. Troubleshooting
Guide.
3. Flow/effort test . Apply an inhalation flow of 400 l/min
and check that the effort does not exceed 15 mbar. If
the effort exceeds this then check Table 1.
Troubleshooting Guide.
4. Leak test. Connect the first stage to a cylinder charged
to 200 bar, open the cylinder valve and immerse the set
in a fresh water bath for one minute. Check that there
are no leaks. If a leak is detected, disassemble the
entire 2
nd
stage; check all sealing surfaces and the
correct positioning of all parts.
END OF REASSEMBLY
Note : If you have a regulator Test Bench, carry
out these test before refitting the mouthpiece.
Instructions for the check are given in the
p
aragraph Final Checks
Note: Tests 2,3 and 4 require the use
of a Regulator Test bench.