MSA G1 SCBA Operating Manual page 34

WARNING!
When pressurizing the system, listen for any hiss or pop sounds from the system. If heard, remove
the SCBA from service. Return it to a MSA trained or certified repair technician.
Failure to follow these warnings can result in serious personal injury or death.
(9) Grasp the regulator and push the side buttons to release
the regulator from the regulator keeper.
a)Ensure that the red bypass knob is fully closed (clock-
wise).
(10) Reach behind and fully open the cylinder valve.
(11) As the system pressure rises from 0 to 200
psi, both visible and audible alerts activate
automatically, indicating that the SCBA is
functioning properly.The following indica-
tions must occur:
Brief sound from the pressure reducer
primary low pressure warning device
Chirp from the power module and speaker
module (if available)
Pressure display on the HUD
Buddy light flashing green on power and
control module
G1 SCBA
Donning
US
34