Adjustment Of Thread Release-Related Parts; 1) Thread Release Notch Position Setting; 2) Thread Release Stopper Position Setting - SunStar SPS/D-BR1254H User Manual

Electronically controlled direct drive type pattern tacking sewing machine (machine structure part)

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5.6) Adjustment of Thread Release-related Parts

Move the notch to make the tightening screws touch the

right side of holes on the notch, and fasten the notch by

using the tightening screws.

If the notch is not properly positioned, the remaining thread might be too short or irregular. When

the sewing begins, the thread might exit from the needle.

Caution

－ Disassemble the thread release return spring.

－ Loosen the tightening screw for the thread release stopper and adjust the distance between the trimmer driving link

and the thread release lever pin to be 0.3mm. If the thread release stopper is pushed to the right side, the distance

between the trimmer driving link and the thread release lever pin grows narrower. If it is pushed to the left side, the

distance between them grows wider.

－ Assemble the thread release return spring.

To prevent safety accidents, please use proper tools to disassemble or assemble the thread

release return spring.

Caution

Trimmer Drive Link

Thread Release

Lever Pin

0.3mm

Thread Release Return Spring

Thread Release Stopper

Tightening Screw

Narrower

Wider

Tightening Screw

Notch

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