Side Feed Straight Stitch Adjustment - Brother NV4000D Service Manual

Adjustment
1. Attach N presser foot.
2. Select test mode "36", and check sewing condition using Schappe Spun Sewing Thread #60.
3. Adjust the following so that the pattern shape is appropriate:
1Adjust the feed dog height and alignment so that the U-shape is almost on the right and the sewing length at the
upper section is 26.0 to 31.0 mm.
2Adjust the skew feed correction value so that the vertical clearance on the right is 4.0 to 6.0 mm.
3Adjust the left/right length correction value so that the difference between the upper and lower length is 1.0 mm
or less.
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Side feed straight stitch adjustment

Negative correction
Positive correction
Negative correction
Less than 1.0mm
Positive correction