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Don't screw up lens carrier.


NBC NBC
 in full National Broadcasting Co.

Major U.S. commercial broadcasting company. It was formed in 1926 by RCA Corp., General Electric Co. (GE), and Westinghouse and was the first U.S. company to operate a broadcast network.
 NCOs try to install the carrier without first loosening loosening /loo·sen·ing/ (loo´sen-ing) freeing from restraint or strictness.

loosening of associations
 the set screws (Mach.) a screw, sometimes cupped or printed at one end, and screwed through one part, as of a machine, tightly upon another part, to prevent the one from slipping upon the other.

See also: Set
 so they don't stick out. Then when the carrier is slid into place, the screws cut a divot in the black plastic mount and eventually the mount breaks.

To install the lens carrier. first loosen the set screws until they're flush with the carrier mount block. Align align (līn),
v to move the teeth into their proper positions to conform to the line of occlusion.
 the mount block with the groove or the mount frame and slide the carrier into place.

Alter adjusting the carrier tip or down to the proper position. told the lens carrier to one side and tighten the set screw just until it makes contact with the mount frame. Don't tighten the screw any more or the lens carrier could pop out during use. Fold the lens carrier to the other side and tighten the other set screw. You're done.
COPYRIGHT 2004 PS Magazine
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2004, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:M40/M42-Series Masks ...
Publication:PS, the Preventive Maintenance Monthly
Geographic Code:1USA
Date:May 1, 2004
Words:139
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