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2. To install a new rubber headstrap, lay the new head- Note: It is important to have the folded side of the elastic strap flat. The MSA logo should be right-side up. The strap face up, so the strap will lay flush against the head strap is labeled.
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ULTRAVUE FACEPIECE REPAIR REPLACING LENS AND RING remove and re-install the screws to avoid cross- threading. Maintain hand pressure on both ring 1. Remove the facepiece lens: halves. f. As the ring halves come together, alternate tighten- ing the left and right screws to be sure the ring seats thoroughly on the flange.
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ULTRAVUE FACEPIECE REPAIR d. The band clamp must be positioned so that the screw is 6. Place the speaking at the 5 or 7 o'clock diaphragm in the hous- position. The screw- ing so that the rolled lip head must be to the rests on the gasket or left so that it will not o-ring.
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ULTRAVUE FACEPIECE REPAIR 6. To install the inhalation disc valve: h. Using the spanner a. Press the valve disc on the pin in the coupling wrench, tighten the housing. adapter slip nut until the slip nut locks into the spring finger on the retaining ring.
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Do not store the facepiece with the headstraps stretched over the lens. Doing so may distort the seal- Note: The "MSA" logo on the exhalation valve cover does ing surface and affect the facepiece seal. not have to be aligned to any special position.
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