Adjusting The Upper Thread Trimming; Adjusting The Installation Height Of The Upper Thread Scissors - Brother HE-800A User Manual
Electronic lockstitch button holer
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Also See for HE-800A:
- Service manual (162 pages) ,
- Manual del instrucción (122 pages) ,
- Instruction manual (118 pages)
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10. STANDARD ADJUSTMENTS
- . Adjusting the upper thread trimming
Center of the needle
- - . Adjusting the installation height of the upper thread scissors
3982Q
Loosen the screw (1), and then move the upper thread scissors (2) up or down to adjust the clearance between the
upper thread scissors (2) and the work clamp (3) to approximately 1 mm.
Note:
The work clamp (3) will tilt when sewing joints, so adjust so that the upper thread scissors (2) do not touch it. If the
upper thread scissors (2) touch the work clamp (3), the work clamp lifter pulse motor may get out of step.
* If the tilting of the work clamp (3) causes skipped stitches to occur when sewing material joints, use the accessory
auxiliary sheet (4) as shown in the illustration.
75
The standard distance (A) between the upper thread
scissors (1) and the center of the needle is 5.5 to 6.0 mm
when the work clamp is lowered by pressing the RESET
key after setting the machine to the home position.
4103M
HE-800A
3983Q
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