Brother International Z-8550A Instruction Manual - English - Page 64

11. REPLACING PARTS 11-2. Gauge parts (presser foot, needle plate and feed dog) Notes when replacing gauge parts (Points which must be noted) 11-2-1. Replacing the stopper If using the presser foot, needle plate and feed dog for a zigzag width of something other than 8 mm, needle breakages may occur when the sewing machine is operating, so be sure to limit the zigzag width and replace the stopper as described below. Stopper For 8 mm (A=16.4mm) White Standard part (Installed to the sewing machine at the time of purchase) For 5 mm (A=13.4mm) Black Accessory part For 3 mm (A=11.4mm) Blue Optional part For 10 mm A 1388M (A=18mm) White Optional part * Depending on specifications, some sewing machines may have a stopper for sizes other than 8 mm installed as a standard part. In such a case, check the size by means of dimension A and the color. • If using the optional presser foot and needle plate for a zigzag width of 5 mm, replace the stopper with one for 5 mm (black). • If using the special-order presser foot and needle plate for a zigzag width of 3 mm, replace the stopper with one for 3 mm (blue). • If using the optional presser foot and needle plate for a zigzag width of 10 mm, replace the stopper with one for 10 mm (white, A=18 mm) 3492M 1. Remove the two screws (1), and then remove the stopper plate (2). 2. Remove the stopper (3) which is inserted into the stopper plate (2), and then install the stopper (3) which matches the presser foot and needle plate. 3. Install the stopper plate (2) to the machine head, and then securely tighten the two screws (1). 4. Turn on the power. 5. Set the zigzag width to the maximum width for the gauge parts. 6. Turn the machine pulley by hand and check that the needle does not touch any of the needle holes in the gauge parts, and that the needle bar does not touch the stopper (3). Limiting the zigzag width (added function using memory switches) If using a presser foot and needle plate for a zigzag width of something other than 8 mm, problems such as the needle bar touching the stopper may occur if the zigzag width is set by mistake to be larger than the needle hole width of the presser foot and needle plate. In order to prevent operation panel setting errors such as this, change the memory switch settings to match the needle hole width of the presser foot and needle plate. Memory switch Example: zigzag width 3493M Press for 2 seconds or more. (The lock will be canceled.) 3494M 3495M Select memory switch No. 101. 3496M Set the zigzag width value to between 3.0−10.0mm. 3497M The buzzer will sound for about 1 second (Complete) 3493M Press for 2 seconds or more. (Lock will be applied.) Z-8550A, 8560A 56