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11. STANDARD ADJUSTMENTS

BAS-342G

11-5. Adjusting the driver needle guard

Turn the machine pulley to align the tip of the rotary hook with the center of the needle, and then loosen the set screw (2)

and turn the adjusting stud (3) to adjust so that the driver needle guard (1) is touching the needle.

NOTE:

If it crosses the needle more than necessary, it will place a load on the needle, or it may cause poor thread tension.

Furthermore, if it does not cross the needle at all, the tip of the rotary hook will interfere with the needle and skipped

stitches may occur.

11-6. Adjusting the needle clearance

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.

11-7. 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.

2555Q

0.01  0.08mm

3574Q

0138Q

Needle center

Rotary hook tip

0135Q

4034M

4035M

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Brother BAS-342G Bedienerhandbuch Seite 66