17
XTX Second Stage Regulator Maintenance Manual
15. Using an 11/16” crows foot or deep socket, tighten to a
torque of 5 Nm.
CAUTION:
Ensure that the Lever is vertical
after tightening.
CAUTION:
Ensure Diaphragm is seated
correctly and not creased.
16. Position the Diaphragm (4) into the Case (24).
Using your finger, work the edges of the Diaphragm
into place so it sits evenly in the Case . Install
the Diaphragm Cover (3) into the Case, over the
Diaphragm.
Before fitting hose, carry out suction test by
holding thumb over Valve Spindle (18) to seal and
trying to breathe through mouthpiece outlet port.
No air should be drawn in.
17. Screw the Case Cover (2) onto the Case. Using the
XTX Tool (p/n AT20F) tighten the Cover until it stops.
Confirm that the
Purge Button is properly aligned.
18. Screw the Hose onto the second stage. Using an
11/16” crows-foot and torque wrench and a spanner on
the Heat Exchanger, tighten the Hose to 5 Nm.
This Ends the conversion procedure, proceed to
Final Testing
12. While depressing the Lever, insert the Valve Spindle
through the Venturi Lever and into the Case. Be sure
that the two flats and the two Lever feet engage in the
tabs of the Blanking Piece.
13. Slide a lubricated ‘O’ Ring (7) down the threaded end
of the Valve Spindle. Screw the Heat Exchanger (6),
hexagon facing outward, onto the Valve Spindle until
finger tight. Using an
11/16” crows foot or deep socket,
tighten to a torque of 3 Nm.
14. Ensure the Valve Spindle hole points to the top of the
case.
NOTE:
If your facility is equipped with a test bench,
remove the mouthpiece as described on page 8.
General instructions for performing bench tests are
located in the section, “Final Testing” on page 14.