4
Respirator Assembly
4.1
Assembling the Mask-Mounted Respirator
If necessary, remove the coupling nut from the facepiece inhalation housing. The coupling nut may be used if the facepiece is
used on MSA respirators.
(1)
Check that the inhalation check valve and spider gasket are in the facepiece
inhalation housing.
NOTE:
The gasket is needed so that the facepiece and motor-blower will seal.
NOTE:
The Ultavue Facepiece is shown.
a) If using the
Ultravue Facepiece
, see step 4.
b) If using the
G1 Facepiece
, attach the APR adapter by following these steps:
(2)
Push the APR adapter inward until you hear a click when it engages correctly in
the facepiece. When the APR adapter is installed correctly and the facepiece is
held in the as-worn position, the MSA logo is aligned horizontally.
(3)
Pull on the APR adapter to make sure that it is attached tightly to the facepiece.
OptimAir® MM PAPR
11
US
4 Respirator Assembly
