Page 17 of 32
P/N 89332-01 Rev F 7/11
USE OF RESPIRATOR
CONTINUED ON NEXT PAGE...
FIGURE 8-H
HEAD HARNESS
MUST BE FLAT AND CENTERED
5. While holding the facepiece in place with one hand, tighten the
neck straps evenly one at a time by pulling each neck strap end
toward the rear of the head. Alternate hands to maintain the face-
piece position on the face.
6. Verify the proper location of the face in the facepiece and the
chin in the chin cup. While still holding the facepiece in place with
one hand, tighten the temple straps evenly one at a time by pull-
ing each temple strap end toward the rear of the head. Alternate
hands to maintain the facepiece position on the face.
7. Verify the proper location of the face in the facepiece and the
chin in the chin cup. Tighten the forehead strap last by pulling the
forehead strap toward the back of the head. Do not overtighten
the forehead strap.
8. Verify that the head harness is centered on the crown of the head
and lying flat against the back of the head. Verify the proper loca-
tion of the face in the facepiece and the chin in the chin cup and
retighten all straps as needed.
FIGURE 8-E
HOLD AND TIGHTEN
FIGURE 8-F
HOLD AND TIGHTEN
FIGURE 8-G
TIGHTEN FOREHEAD STRAP
NOTE
ENSURE THAT THE CHIN IS PROPERLY
LOCATED IN THE CHIN POCKET OF
THE FACEPIECE THROUGHOUT THE
DONNING PROCESS.