67
Cylinders
G1 SCBA 2018 Edition
US
When replacing a cylinder valve assembly or after retesting the cylinders, make sure the correct
cylinder valve, burst disc, and O-ring are installed before charging the cylinder.
Determine the maximum service pressure of the cylinder. Fill all cylinders only to the designated
service pressure found on the DOT approval or stamping. For cylinders manufactured under a US
DOT exemption (i.e., DOT-E- #####), consult the exemption, which is available from the Research
and Special Programs Administration (RSPA), US Department of Transportation, 400 7th Street, SW,
Washington, DC 20590-0001.
12.2 Preparing Cylinders for Use
For remote connections, make sure the dovetail bracket is attached to the cylinder before use. If the
dovetail is not available, do the following:
(1) Remove the old cylinder boot and insert (if equipped)
from the cylinder.
(2) If MSA cylinders are already available, use the
following table to determine which cylinder retainer kit
is necessary.
P/N Cylinder
NIOSH Service
Life Rating
Pressure
Retainer
Type
Retainer Kit
P/N
807586 L-30 Carbon 30 minutes 2216 psig Type 4 10158401
807587 H-30 Carbon 30 minutes 4500 psig Type 2 10158389
807570 H-45 Carbon 45 minutes 4500 psig Type 4 10158401
10035644 H-45 LP Carbon 45 minutes 4500 psig Type 3 10158390
807588 H-60 Carbon 60 minutes 4500 psig Type 5 10158402
(3) Attach the retainer halves to the cylinder valve assembly.
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