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.

(1)

(A) 5.5 – 6.0 mm

Center of the needle

2176Q

10-7-1. Adjusting the installation height of the upper thread scissors

2177Q

2178Q

(2)

1 mm

(1)

 

(3)

1 mm

Loosen the screw (2), and then move the upper thread scissors (1) up or down to adjust the clearance between the upper thread scissors (1) 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 (1) do not touch it. If the upper thread scissors (1) 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.

(4)

(4)

2179Q

74

HE-8000

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Motorola LH4-B800E, HE-8000 I instruction manual Adjusting the upper thread trimming

LH4-B800E, HE-8000, HE-8000 I specifications

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