Brother DH4-B980 Adjusting the spreader timing, Adjusting the needle racking width stitch width

9. STANDARD ADJUSTMENTS

9-8. Adjusting the spreader timing

When the needle is at the inside sewing position, the left spreader should touch the left spreader stopper and stop immediately before the needle bar reaches its lowest position.

When the needle is at the outside sewing position, the right stopper should touch the right spreader stopper and stop immediately before the needle bar reaches its lowest position.

(2)

(3)

(1)

1.Raise the machine head.

2.Loosen the screw (1) and the nut (2), and then turn the adjusting screw (3) to adjust the spreader timing.

3.After adjusting, tighten the nut (2) and the screw (1).

0966Q

9-9. Adjusting the needle racking width (stitch width)

The needle racking width is set to 3 mm at the time of shipment from the factory.

2 mm

Becomes smaller

Becomes larger

(2)

(1)

3 mm

Neddle racking width 1.5 - 3.2 mm

0967Q 0968Q

1. Loosen the needle racking adjustment nut (1) and then adjust the needle racking width by sliding the adjustment screw

(2) vertically along the oval slot.

The stitch width becomes smaller as the adjustment screw (2) is moved upward.

Note: If the needle racking width is changed greatly, you should re-adjust the timing between the needle and the loopers.

(Refer to "9-2. Adjusting the needle and looper timing".)

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RH-9800