3M II 2529 manual If properly inserted, bare glass should not be visible, Inserted

4.03Gently continue pushing the fiber into the splice until resistance is felt. When fully inserted, the first fiber should be straight or have a slight bow – up to .1 inch (3 mm).

Note:	If properly inserted, bare glass should not be visible
	outside of splice. If bare glass is visible, pull back slightly
	on fiber and continue insertion until resistance is met.
	Never fully remove fibers from splice after initial
	insertion. Do not pull on fiber after it has been properly
	inserted.

4.04Prepare second fiber (strip, clean and cleave) as described in Section 3.

4.05Lay fiber into foam retention pad and begin to insert the fiber end into the splice, as in 4.01 and 4.02.

4.06Gently push the second fiber in small increments straight through the alignment guide into the fiber entry port. As the coating of the second fiber enters the fiber entry port, watch for the bow in the first fiber to increase. This occurs when the end face of the second fiber contacts the first fiber and pushes the first fiber slightly back out of the splice. Continue gently pushing the second fiber until it meets resistance.

4.07Following proper insertion, the second fiber will be approximately straight, but may have up to a .1 inch (3 mm) maximum bow. At this point, the first fiber will have a larger bow than the second fiber and larger than it had initially.

4.08Push the first fiber back against the second fiber until there are equal bows in both fibers.

Note:	Do not pull on either of the fibers following
		of the bows in the first and second fibers.
	establishment
	The fiber ends must be held together by the compressive
	forces induced by the bows to produce a low loss splice.
	If fiber bows are NOT observed to move as described,
	repeat steps 4.02 – 4.07 of Splice Assembly but DO NOT
	fully remove fibers from the splice. If bow movement is
	still not observed, remove fibers, strip, clean and re-
	cleave, checking for proper cleave length. Re-splice per
	splicing procedure using a new splice.
	Do not attempt to "tune" or optimize the splice as this
	may result in higher splice loss. The Fibrlok™ II Splice is
	not designed to be "tuned." Fiber alignment does not
	occur until the splice is activated.

7