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UAC Fitting
G1 SCBA 2018 Edition
US
13.2 Filling Instructions
WARNING!
Do NOT connect a high-pressure SCBA to a secondary air supply with a pressure more than the oper-
ating system of the primary SCBA.
Failure to obey this warning can result in serious injury or death.
A secondary air supply provides compressed breathing air when it is needed to refill SCBA air cylin-
ders. For filling operations, the pressure of the secondary air supply must be more than the SCBA
cylinder pressure. Examples of air supplies include cascade air cylinder refilling systems, high-pres-
sure compressor systems with a fixed reservoir, and portable air systems such as the RescueAire
®
II
System.
NOTE: Rapid intervention teams should use a separate air supply such as MSA's RescueAire II
Portable Air-Supply System (P/N 10100095) to fill the SCBA cylinders in atmospheres that are IDLH.
NOTICE
If there is leakage from either female fitting or along the Quick-Fill hose, depressurize the hose and
correct the problem. Such leakage can result in increased fill time.
(1) Connect the Quick-Fill hose to the secondary air supply.
(2) Turn the air supply on.
(3) Attach the Quick-Fill hose to the UAC fitting:
a) Remove the rubber dust cap from the male inlet fitting on
the UAC fitting. Make sure the cylinder valve is fully
open.
b) Remove the rubber dust cap from the female fitting on
the Quick-Fill hose.
c) Push the female fitting of the Quick-Fill hose onto the
male fitting of the UAC until the hose clicks into position.
d) Pull on the Quick-Fill hose to make sure the connection
is secure.
When the female fitting of the Quick-Fill hose fully engages
with the UAC fitting, filling starts immediately.
After approximately 60 seconds, the pressure between the
secondary air supply and the SCBA cylinder will be equal.
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