Brother International DA-9280 Instruction Manual - English - Page 23

10. STANDARD ADJUSTMENTS 10-5. Feed dog height adjustment 1.2mm q 1.2mm q w e Becomes heigher w Becomes lower Feed dog Needle plate Make an adjustment so that the highest part of the feed dog will be 1.2 mm above the top surface of the needle plate when feed dog q is at the highest position. Adjust the height of feed dog q by turning feed bar eccentric shaft w. Installing the Spacer (For the denim specifications) If stitch irregularities develop in sewing very heavy materials, adjust the sub-feed dog to the correct height by spacer. 1. Remove set screws q and sub-feed dog w. 2. Place the spacer e under sub-feed dog w and retighten set screws q. * The spacer is in the parts box. 10-6. Thread release lever adjustment q Adjust so that the center of the thread release lever thread hole is 7 - 8 mm above the center of the thread hole in the upper thread tension bracket when the needle bar is at its lowest position. 1. Turn the pulley until the needle bar is down at the lowest position. 2. Loosen the screw q and than move the thread release lever w up or down to adjust so that the center of the thread release lever thread hole is 7 - 9 mm above the center of the thread hole e in the upper thread tension bracket. 3. Retighten set screw q. * The higher the thread release lever, the tighter will be the stitches. w e 7 - 9mm 18 DA-9280