Installing the Quick-Connect Adapter to the Cylinder

NOTE: A torque wrench with a 24 mm open end is necessary for installation.

1. Use only a fully charged cylinder.
2. Make sure there is no dirt, debris, or damage on the external threads and bore of the cylinder valve assembly.
3. If the cylinder valve assembly is damaged, remove the SCBA from service and return it to an MSA trained or certified repair technician.

4. Make sure there is no dirt, debris, or damage on the internal threads and nipple of the male adapter.
5. Make sure there is no dirt or debris on the O-ring, and that it is installed on the nipple.

6. Hold the cylinder valve assembly tightly and connect the male adapter to the valve.
7. Use a torque wrench to tighten the adapter to 13 – 15 ft·lbf
(18 – 20 N·m).

Cylinders with adapter pre-installed are available. See G1 Cylinder brochures for purchase options.