3M™ Head Harness Replacement 6897
Read and follow head harness assembly 6897 replacement instructions included with replacement head harness for instructions on removing and
replacing the head harness.
3M™ Lens Assembly 6898
The lens assembly 6898 consists of a hard-coated polycarbonate lens with installed bayonet attachment inhalation port fittings, inhalation valves, and
inhalation port filter/cartridge gaskets. The lens assembly 6898 is replaceable by following these steps:
1. Remove nose cup assembly from inside facepiece (Fig. 15).
2. Remove center adapter assembly by turning counter-clockwise 1/4 turn and withdrawing from lens center port.
3. Remove the (2) Phillips screws from the lens/faceseal frame. Pull the frame top and frame bottom away from faceseal.
4. Remove faceseal from lens.
5. Place new lens and faceseal together aligning marks at top and bottom. Position top and bottom frame, again aligning marks top and bottom.
Install and securely tighten screws. Make certain alignment marks are properly aligned top and bottom with all components (Fig. 22).
6. Install center adapter assembly (Fig. 16).
7. Replace nose cup assembly (Fig. 17).
3M™ Frame Kit 6899
The frame kit 6899 includes a frame top, frame bottom, (2) Phillips head screws and (2) hex head nuts. The frame kit secures and seals the 3M™ Full
Facepiece 6000 Series faceseal to the 3M™ Lens Assembly 6898.
1. After assembling the faceseal onto the lens, matching top and bottom alignment marks, position top frame, over lens and faceseal, aligning center
vertical marks, then press in place.
2. Position bottom frame, aligning center vertical mark, and press in place (Fig. 22).
3. Insert and tighten Phillips head screws. Make certain parts are properly aligned and sealed together.
Fig. 21
Alignment
Marks
Alignment Marks
Fig. 22
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