a) Thread the BR-540 onto the British standard oxygen cylinder valve outlet connection.
Tighten with a wrench.
b) Thread one end of the transfill hose assembly onto the other end of the BR-540.
c) Attach the other end of the transfill hose assembly to the US standard oxygen cylinder
valve outlet connection.
d) Follow transfill instructions detailed elsewhere in this manual.
c. Inspect and wipe clean with a clean dry cloth all fittings, hoses, and cables. Ensure there is no
grease, oil, or other contaminant on these items.
d. Ensuring that the oxygen is turned off, place the oxygen cylinder into the back harness assembly:
1) The oxygen cylinder will be in an up-right position.
2) The oxygen outlet shall be positioned toward the user's left shoulder (when wearing the rig).
3) The oxygen cylinder will be located on the back harness assembly so that the cylinder strap is
approximately center on the oxygen cylinder.
4) Tighten the cylinder strap using the tensioner. The cylinder strap must be routed through the
tensioner as shown to remain securely attached to the back harness assembly.
5) Tighten the keeper strap.
ROUTING THE MAIN CYLINDER STRAP
