OPERATE NBC AIR FILTER SYSTEM (M548A3) Continued
Filters and masks of the NBC system will not protect you against carbon monoxide, ammonia,
acid, or solvent fumes. Be sure the carrier is properly ventilated. Do not let any filters of the
NBC system get wet. Water will destroy their ability to take the deadly chemical and biological
NBC agents out of the air.
Operating NBC air filter system without engine running will discharge carrier batteries. Make
sure engine is running while operating NBC air filter system.
Do Steps 1 - 4 only when ordered to do so or when under actual NBC attack.
Spring clip must be raised from precleaner and particulate filter assembly openings for the gas
particulate filter to operate at full capacity.
Raise spring clip from air intake openings on precleaner.