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FLOW TEST AND OVERHAUL REQUIREMENTS
FLOW TEST AND OVERHAUL REQUIREMENTS
Your SCBA Regulator and whistle audible must be flow
tested and overhauled at specific time intervals. These
Maintenance Procedures must be performed by a trained
repairperson or at a Certified Service Center. Contact your
MSA sales representative or call the MSA Customer
Service Center at 1-800-MSA-2222. They will supply the
information you need to meet these requirements.
The required replacement/overhaul schedule for self-con-
tained breathing apparatus from MSA is based on appara-
tus usage on an individual basis. The frequency required
for SCBA overhaul depends upon how often the appara-
tus is used. MSA breathing apparatus must be overhauled
based on the actual level of usage, rather than on time
alone.
Overhaul is covered in the Regulator Disassembly and
Repair sections and includes installation of the Regulator
overhaul kits.
MSA breathing apparatus must be flow tested every year
using an MSA approved flow test device.
The following table summarizes MSA’s required frequency
for overhaul and flow testing.
A decision to retire an Air Mask should be based on a
SCBA’s performance data and whether that data meets
the specified level of performance as defined in mainte-
nance requirements from MSA.
*The unit of SCBA use is defined as the consumption of
one 30 min. cylinder of air. Example: If three cylinders of
air are used, the SCBA would be considered to have been
used three times.If an assessment of a SCBA’s usage
cannot be estimated or determined, then the SCBA shall
be overhauled every three years.
20 TAL 5010 (L) Rev. 3 - 10037469
Average Recommended Recommended
SCBA Usage* Overhaul Frequency Flow Test Frequency
1 cylinder per Every 3 years Every year
day or greater
1 cylinder every Every 8 years Every year
other day
1 cylinder per Every 15 years Every year
week or less