Brother International ULT-2001 Users Manual - English - Page 301

CONTENTS Problem Fabric puckers Highpitched sound while sewing Can not thread the needle Thread tension is incorrect Character pattern does not turn out Cause 1 There is a mistake in the upper or bob- bin threading. 2 Spool cap is set incorrectly. 3 Using improper needle or thread for the selected fabric. 4 Needle is turned, bent or the point is dull. 5 Stitches are too long when sewing thin fabrics. 6 Thread tension is set incorrectly. 7 Wrong presser foot. 1 Dust or lint is caught in the feed dogs. 2 Pieces of thread are caught in the race. 3 Upper threading is incorrect. 4 There are scratches on the race. 1 Needle is not in the correct position. 2 Threading hook does not pass through the eye of the needle. 3 Needle is installed incorrectly. 1 Upper threading is incorrect. 2 Bobbin is set incorrectly. 3 Using improper needle or thread for the selected fabric. 4 Presser foot holder is not attached cor- rectly. 5 Thread tension is set incorrectly. 1 Wrong presser foot was used. 2 Pattern adjustment settings were set incorrectly. 3 Did not use a stabilizer material on thin fabrics or stretch fabrics. 4 Thread tension is set incorrectly. Solution Check the steps for threading the machine and rethread it correctly. Check the method for attaching the spool cap, then reattach the spool cap. Check the "Fabric/Thread/Needle Combination" chart. Replace the needle. Shorten the stitch length. Page 1-32 1-33 1-45 1-43 2-9 Adjust the thread tension. 2-13, 5-40 Use correct presser foot. 3-1 Remove the dust or lint. 8-2 Clean the race. 8-2 Check the steps for threading the 1-32 machine and rethread the ma- chine. Replace the race, or consult your 8-2 authorized dealer. Press the "Needle Position" button 1-3 to raise the needle. Press the "Needle Position" button 1-3 to raise the needle. Reinstall the needle correctly. 1-43 Check the steps for threading the 1-32 machine and rethread the ma- chine. Reset the bobbin. 1-31 Check the "Fabric/Thread/Needle 1-45 Combination" chart. Reattach the presser foot holder 1-42 correctly. Adjust the thread tension. 2-13, 5-40 Attach the correct presser foot. 3-1 Revise the pattern adjustment set- 4-11 tings. Attach a stabilizer material. 4-8 Adjust the thread tension. 2-13 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - ?! 9-6 Troubleshooting Index