Standard Adjustments; Needle; Needle Installation - SunStar SC 7900-Series User Manual

Speed overlock direct drive, 4-needle flat seamer feed off the amp type

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STANDARD ADJUSTMENTS

(1) Sewing needle

This sewing machine uses the UY118GKS sized needles made by from Groz-Beckert.

Select the proper needle according to the thickness and type of the sewing materials because of the various size of needle.

(2) Retainer needle

This sewing machine uses the UY36211 sized needles made by from Groz-Beckert.

Select the proper needle according to the thickness and type of the sewing materials because of the various size of needle.

Loosen the clamp screw .

Remove the old needle using the tweezers.

Lift the needle to the end of needle hole

firmly by tightening the clamp screw .

and then fix it

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