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Change control block – ERICO LENTON Mid-Range Bar Threader User Manual

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Change Control Block

Wipe the holders clean of any chips and contaminants.

The number 1 holder with the slot in it to accept the control
block must be replaced first. Followed by holders 4, 2 and 3.

After the holders have been installed in the cutting square,
check that the numbers on the face of the holders match
the corresponding numbers on the cutting square face.

After sliding all holders into position, use your thumbnail
to make sure that the holders are recessed inside the
cutting square.

After installing the chaser holders, check to see that
they do not protrude outside of the cutting head.
This would prevent free holder movement during
threading. If any do protrude outside, remove them
and reclean the head and holder(s). Also look over
the holder for any burrs that might need taking
down with a stone.

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