Chapter 3
Operation
Edition 1 – December 2019
SAFETY FIRS T
45
MSA G1 Classic Breathing Apparatus
Step
Description
Photos
If the blue plug is hard to get out, twisting it may help.
4
Replace the charged cylinder.
4.1
Slide the cylinder under the retaining strap.
4.2
Check that the O-rings on the pressure reducer
are present.
4.3
Align and connect the pressure reducer to the
cylinder by rotating the green cylinder
handwheel.
4.4
Ensure the cylinder is mounted straight on the back plate.