Filling Instructions - MSA G1 SCBA Operating Manual

NOTE: The UAC fitting may be used for transfill operations as described in this manual. Standard
operating procedures should be developed for use of the UAC fitting.
The UAC fitting must be used only by qualified, trained personnel who have carefully read and under-
stood these instructions, cautions, and warnings.

13.2 Filling Instructions

A secondary air supply stores compressed breathing air until needed to refill SCBA air cylinders.
When filling, the secondary air supply pressure must be greater than SCBA cylinder pressure. Exam-
ples of air supplies include: cascade air cylinder refilling systems; high pressure compressor systems
with a fixed reservoir; or a portable air system such as the RescueAire™ System.
WARNING!
DO NOT connect a high pressure SCBA to a secondary air supply with a pressure greater than the
rated service pressure of the SCBA. Misuse can result in serious injury or death.
NOTE: Rapid Intervention Teams should use a separate air supply such as MSA's RescueAire
portable air supply system to fill the SCBA in an IDLH atmosphere.
(1) Connect the Quick-Fill hose to the secondary air supply.
a)Turn the air supply on.
CAUTION!
If there are leaks from either female fitting, or along the hose, depressurize the hose and correct the
problem. Such leakage can result in increased fill time.
(2) Attach the Quick-Fill hose to the UAC fitting:
Remove the rubber dust cap from the male inlet fitting on the UAC fitting. Be
sure that the cylinder valve is fully opened.
Remove the rubber dust cap from the female fitting on the Quick-Fill hose.
Push the female fitting of the hose onto the male fitting of the UAC fitting until it
clicks in place.
Pull on the hose to be sure the connection is secure.
Filling immediately begins when the female fitting fully engages with the UAC
fitting.
After approximately 60 seconds, the pressure between the secondary air
supply and the SCBA cylinder will be equal.
G1 SCBA
UAC Fitting
US
70