First Stage Final Assembly - Aqua Lung APEKS TX 50 Technical Manual

12
6
Let the first stage stand
pressurized for several
minutes. Check that the MP,
remains stable. If the MP rises
more than 5 psi (0.3 bar), it
indicates a leak. If the MP is
stable, close the valve, purge
the line, and pressurize once
again to perform the final
check and assembly.

FIRST STAGE FINAL ASSEMBLY

NOTE: The following steps must be performed while the first
stage is still pressurized.
1
With the first stage still
pressurized, insert the
hydrostatic transmitter (23) into
the dry chamber and through
the adjustment screw (22).
2
Install a new hydrostatic
diaphragm (25) into the
enviromental end cap (26).
3
Thread the end cap (26) onto the dry chamber until hand tight.
Using the pin spanner (PN AT30), tighten the end cap until snug.
4
With the end cap in place,
recheck the MP to confirm
there has been no change.
5
Close the cylinder valve and depressurize the regulator.
Remove the test gauge and reinstall the port plug.
THIS CONCLUDES ASSEMBLY OF THE
DST FIRST STAGE
TX50 Technical Manual