3M 7800 Hermontage - Pagina 3

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14) To replace the 7882 Nose Cup Valve Assembly:

a. Insert the valve assembly into the nose cup with the valve

positioned on the inside of the nose cup.

15) To replace the Nose Cup Assembly:

a. Slide it over the groove around the speaking diaphragm and over

the exhalation valve.

b. Verify that the nose cup is in the groove in the valve assembly.

16) To replace the 7893S Head Strap Assembly:

a. Ensure the harness is positioned correctly with the 3M Logo in the

upright position.

b. Position the opening in the head harness buckle over the faceseal

post.

c. Slide the buckle downward to engage it.

d. To ensure proper fit, make sure all of the buckles are attached

firmly.

17) To replace the 7894 Standard Eyeglass Frame:

a. Insert the two prongs of the eyeglass frame into the holes of the

frame holder with the prongs directed away from the bow of the

frame holder.

b. The eyeglass frame and the bow of the frame holder should be in

the same plane.

c. Position the frame assembly into the facepiece with the bow

immediately on the inside of the inner faceseal.

d. The eyeglass frame should be positioned in the center of the

facepiece lens.

e. Adjust the frame assembly or eyeglass frame as needed to the best

fit.

f. The 7925 Universal Eyeglass Frame is also available.

7800 - Reassembly