Adjusting The Needle Clearance; Adjusting The Driver Needle Gurard; Adjusting The Shuttle Race Thread Guide - Brother BAS-343E Instruction Manual

E series programmable electronic pattern sewer

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9-3. Adjusting the needle clearance

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw q

and turn the eccentric shaft w to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08

mm.

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw w

and turn the eccentric shaft e to adjust so that the driver needle guard q contacts the needle. If the needle contact

pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard q is not touching the

needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high amount of friction.

The needle groove of the shuttle race thread guide q should be aligned with the center of the needle plate hole, and

the needle center and the angled section A should be aligned.

NOTE

If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the

thread may occur.

0.01 - 0.08mm

BAS-343E

9. Standard adjutsments

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