Audi-Larm Audible Alarm Testing

MSA is announcing several changes to the instructions for the MMR Firehawk, MMR 1/4 Turn, and BMR Air Masks as they relate to the air mask flow test frequency and the maintenance of the Audi-Larm Audible Alarm. The major changes are as follows:
• The flow test frequency for all air masks is changed to every year in accordance with the NFPA 1852 requirement for an annual flow test.
• A new Audi-Larm Tester was developed and must be used to evaluate the Audi-Larm at each flow test.
• Prior to testing the Audi-Larm, all actions required by previously issued field notices must be verified as completed.
• A new Audi-Larm overhaul kit was developed. The instruction manuals and sections affected by the changes are as follows:
• Operation and Instruction Manuals
o Flow test and overhaul requirements (revised)
• Certified Maintenance Instruction Manuals
o Audi-Larm test requirements (new)
o Audi-Larm Audible Alarm Tester (new)
o Audi-Larm Disassembly and Repair (revised)
o Troubleshooting the Audi-Larm (new)
The attached pages include the above sections and changes indicated. They must be used in place of the existing instructions for the applicable sections. For your convenience, you may place copies of the attached pages in your instruction manual binders and remove the appropriate existing pages.

FLOW TEST AND OVERHAUL REQUIREMENTS
Your SCBA Regulator and Audi-Larm Alarm Assembly 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 1-877-MSA-3473. They will supply the information you need to meet these requirements.

The required replacement/overhaul schedule for self-contained breathing apparatus from MSA is based on apparatus usage on an individual basis. The frequency required for SCBA overhaul depends upon how often the apparatus is used. MSA breathing apparatus must be overhauled based on the actual level of usage of the SCBA, rather than on time alone.

Overhaul is covered in the Regulator and Audi-Larm Disassembly and Repair sections and includes installation of the Regulator and Audi-Larm overhaul kits. MSA breathing apparatus must be flow tested every year using an MSA approved flow test device.

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