Installation of Accessories
Nosecup
The nosecup is used with the Ultravue
facepiece to reduce the possibility of
lens fogging. It is effective under
conditions of high humidity and/or low
(below 32 F) temperatures.
To install the nosecup, position it as
shown below. Start at the front of the
facepiece and push the rubber ring of
the nosecup under the plastic retainer
ring
of
the
speaking
diaphragm
assembly. Continue stretching the
nosecup ring and work it securely into
place.
Spectacle Kit
Designed for use by those persons
who must wear corrective lenses. A
proper seal cannot be established if
the temple bars of spectacles extend
through the sealing edge of a full
facepiece. The kit includes the
support assembly, frame guide, and
the spectacle frame. Prescription
lenses can be obtained locally or
through MSA.
Align the support assembly in the
proper wearing position and press the
arms together. Put the support
assembly inside the facepiece so that
the arms are tight against the rubber
facepiece edge and the lens.
Adjust the spectacles horizontally by
sliding the prongs of the frame in or
out of the frame guide.
And adjust them vertically by sliding
the frame guide up or down on the
metal rods of the support assembly.
Neckstrap Kit
The
neckstrap
accessory
should
always be used to support the
facepiece. In this ready position, there
is little possibility that water and debris
can collect in the facepiece.
Collapse the corrugations of the
breathing tube and force the ring into
the third corrugation. Remove the
neckstrap from the facepiece. Make
sure the neckstrap is straight and not
twisted, and attach the ends to the ring
by collapsing the corrugations and
slipping the ends of the strap under the
ring. Snap the fasteners closed.
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