Respirator parts should be inspected prior to each use. Replace worn or deteriorated parts with new parts.
3MTM Lens 7884The lens should be inspected for cracking or crazing. Replace if necessary. Replace as follows: Remove two screws on either side of lens with a Phillips screwdriver, remove the top and bottom lens frame and remove the lens. To reassemble, first align the center of the lens with the centerline of the facepiece. The center of the lens is marked by two small lines, one at the top center and second at the bottom center of the lens. Place the lens into the facepiece and then reattach the lens frame. Replace the two center screws and tighten.
3MTM Exhalation Valve Cover 7918 and Exhalation Valve 7283Remove the 3M TM Exhalation Valve 7918 cover by lifting out on the two top prongs on either side of the center opening and sliding down. Remove the exhalation valve by grasping and pulling on the edges of the valve. Replace the valve if it is warped, distorted, cut, split or if it will not seal tightly on the valve seat. Replace by pushing the valve onto the exhalation valve post.
3MTM Speaking Diaphragm Kit 7895Remove the nose cup. Using the diaphragm removal tool, turn diaphragm retaining ring counter clockwise and remove. Push diaphragm assembly out of the facepiece from underneath using the eraser end of a pencil or a similar object. Check the speaking diaphragm gasket for damage or deformation. To replace the diaphragm, follow the steps in reverse.
Note: The grill pattern with deep indentation in the center should be visible from inside the respirator.
3MTM Removable DIN Connector 7886Hold the inside part of the connector secure, grasp the outside of the connector and twist counter clockwise to remove. To replace the connector, press the inner section into the facepiece until the end of the threads are flush with the facepiece exterior, then screw on the outer piece by turning clockwise.
3MTM Inhalation Valves 7282Grasp the edges of the valve and pull away from the plastic post. Replace if the valve is distorted, cut, split or cannot be sealed on the valve seat. If the valve seat is damaged, replace the 3M 7886.
3MTM Air Inlet Gasket 7999Remove the gasket from the air inlet opening base. Replace the gasket if it is warped, distorted, cut, split or cannot be reassembled into the air inlet. To replace, position the gasket so the small
Remove the gaskets from each side of the facepiece. Replace the gaskets if they are warped, distorted, cut or split. Replace one gasket on each side of the facepiece. Be sure the gasket is flat and seated correctly.
3MTM Nose Cup ValvesThe nose cup valves are supplied as a complete 3M™ Nose Cup Valve Assembly 7882. Remove the nose cup valves if they become warped, torn or otherwise damaged. Replace the valves in the nose cup such that the post points away from the nose.
3MTM Cartridge Holder GasketReplace 3MTM 7891 Cartridge Holder if gasket is warped, distorted, cracked or split.
3MTM Inhalation Port Gasket Replacement 6895Replace if gasket is warped, distorted, cracked or split.
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