Adjusting The Needle Clearance - Brother BAS-342G Service Manual

7. ADJUSTMENT

7-6. Adjusting the needle clearance

0138Q
Turn the machine pulley to align the tip of the rotary hook with the center of the needle, and then loosen the set screw (1) and
turn the adjusting stud (2) to adjust so that the clearance between the needle and the rotary hook is 0.01 − 0.08 mm.
7-7. Adjusting the shuttle race thread guide
Install the shuttle race thread guide (1) by pushing it in the direction of the arrow so that the needle groove is aligned with the
center of the needle plate hole.
NOTE:
If the shuttle race thread guide (1) is in the wrong position, thread breakages, soiled thread or tangling of the thread may
occur.
The position of the shuttle race thread guide (1) is adjusted at the time of shipment from the factory. It should not be
changed if possible.
89
0.01 - 0.08mm
BAS-342G
4035M
3574Q