Installation of AccessoriesNosecupThe nosecup is used with the Ultravuefacepiece to reduce the possibility oflens fogging. It is effective underconditions of high humidity and/or low(below 32 F) temperatures.To install the nosecup, position it asshown below. Start at the front of thefacepiece and push the rubber ring ofthe nosecup under the plastic retainerring of the speaking diaphragmassembly. Continue stretching thenosecup ring and work it securely intoplace.Spectacle KitDesigned for use by those personswho must wear corrective lenses. Aproper seal cannot be established ifthe temple bars of spectacles extendthrough the sealing edge of a fullfacepiece. The kit includes thesupport assembly, frame guide, andthe spectacle frame. Prescriptionlenses can be obtained locally orthrough MSA.Align the support assembly in theproper wearing position and press thearms together. Put the supportassembly inside the facepiece so thatthe arms are tight against the rubberfacepiece edge and the lens.Adjust the spectacles horizontally bysliding the prongs of the frame in orout of the frame guide.And adjust them vertically by slidingthe frame guide up or down on themetal rods of the support assembly.Neckstrap KitThe neckstrap accessory shouldalways be used to support thefacepiece. In this ready position, thereis little possibility that water and debriscan collect in the facepiece.Collapse the corrugations of thebreathing tube and force the ring intothe third corrugation. Remove theneckstrap from the facepiece. Makesure the neckstrap is straight and nottwisted, and attach the ends to the ringby collapsing the corrugations andslipping the ends of the strap under thering. Snap the fasteners closed.7
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