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3M™ 502 Adapter Assembly
1. Align adapter over cartridge. Engage front snap by squeezing front of cartridge and adapter together,
placing thumbs of both hands over top of adapter and fingers along bottom sides of cartridge. (Fig. 4)
2. Engage back snap by squeezing back side of cartridge and adapter together using the same hand
positions. An audible click should be heard as each snap is engaged. (Fig. 5) The 3M 502 adapter
should not be removed or reused once engaged. It is not designed for reuse. Removal and reuse may
result in leakage.
Fig. 4 Fig. 5
3M™ 2000 Series and 7093 Filters/3M™ 502 Adapter Assembly
Place filter onto the filter holder so that filter comes into even contact with gasket. Twist clockwise a quarter
turn until it is firmly seated and filter cannot be turned further. Repeat for second filter.
Note: The 3M 502 adapter, once installed on a 3M 6000 Series Cartridge, is not to be removed or reused.
Removal and reuse may result in leakage.
3M™ Supplied Air Systems
3M™ Air Control Devices – Continuous Flow
User must follow User Instructions provided with approved Air Regulating Valve Assemblies.
3M™ Dual Airline Respirator Assembly
User must follow Dual Airline Supplied Air Respirators User Instructions provided with the 3M™ Dual
Airline Supplied Air Respirators.
Assembly of 3M™ Combination Dual Airline Respirator with Cartridges and Filters
The 3M™ SA-1600 (front-mounted) and SA-2600 (back-mounted) versions of the 3M dual airline breathing
tubes allow use of selected NIOSH approved 3M™ 6000 Series Cartridges and 2000 Series Filters. For the
listing of approved cartridges and filters, reference the NIOSH approval label included with 3M dual airline
adapter kits.
To assemble 3M™ Dual Airline Combination Breathing Tubes with 3M™ Cartridges/Filters, the facepiece
inhalation valves must be removed.