Filling Instructions

WARNING! 

Do NOT connect a high-pressure SCBA to a secondary air supply with a pressure more than the operating system of the primary SCBA.

Failure to follow this warning can result in serious personal injury or death.

A secondary air supply provides compressed breathing air when it is needed to refill SCBA air cylinders. 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-pressure 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.

1. Connect the quick-fill hose to the secondary air supply.
2. Turn the air supply on.

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.

 
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.

NOTE: When the female fitting of the quick-fill hose fully engages with the UAC fitting, filling starts immediately.

NOTE: After approximately 60 seconds, the pressure between the secondary air supply and the SCBA cylinder will be equal.

NOTE: If the secondary air supply does not have a sufficient volume of air, the SCBA cylinder will not reach full service pressure.

4. Compare the readings of the cylinder pressure gauge and the remote pressure gauge to the secondary air supply pressure gauge.

NOTE: If the readings are the same, pressure is equal.

5. To disconnect the quick-fil hose, pull the gray sleeve back.

The female fitting on the hose and the UAC fitting will separate.

A hissing or popping sound may occur as the fittings separate and the high-pressure air is sealed off.

6. Listen for leaks from the UAC fitting.
7. Immediately install the rubber dust cap on the UAC fitting.
8. If the needle on the cylinder pressure gauge is in the appropriate color band, the SCBA cylinder is ready for service.