Chapter 3
Operation
Edition 1 – December 2019 SAFETY FIRST 79
MSA G1 Electronic Breathing Apparatus
Step Description Illustration
2 Remove the used cylinder.
2.1 Open the quick release buckle and loosen the
cylinder retention strap.
Tip To lengthen or loosen the cylinder retaining
strap, pull the slide up to move the strap
through.
2.2 Unscrew the high pressure reducer by rotating
the green cylinder handwheel.
If difficulty is encountered while unscrewing the cylinder, check that all the air
has been release, then place a hand under the top of the cylinder to level the
cylinder with the high pressure valve.
2.2
Remove the cylinder.
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