Brother International HE-800A Instruction Manual - English - Page 83

Adjusting the upper thread trimming

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10. STANDARD ADJUSTMENTS １０-７. Adjusting the upper thread trimming 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. Center of the needle 5.5 - 6.0 mm 3981Q Adjusting the installation height of the upper thread scissors 3982Q 3983Q 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 HE-800A

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HE-800A
10. STANDARD ADJUSTMENTS
75
１０
-
７
. Adjusting the upper thread trimming
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.
１０
-
７
-
１
. Adjusting the installation height of the upper thread scissors
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.
3981Q
3983Q
3982Q
Center of the needle
5.5 – 6.0 mm