Brother International LX2500 Users Manual - English and Spanish - Page 42

APPENDIX Symptom ▲ The upper thread breaks. The lower thread is tangled or breaks. The thread tension is incorrect. The fabric is wrinkled. Possible cause The needle is bent or blunt. The needle is incorrectly installed. The area around the hole in the needle plate or the presser foot is scratched. The bobbin case is scratched, or has a burr on it. You have not used a bobbin that has been designed for this machine. You have not wound the bobbin thread properly. The bobbin is scratched or does not turn smoothly. The thread is tangled. You have not used a bobbin that has been designed for this machine. Bobbin is set incorrectly. You have not threaded the upper thread properly. You have not wound the bobbin thread properly. You have not threaded the right combination of thread and needle for the fabric you are using. You have not attached the presser foot holder properly. The thread tension is incorrect. You have not used a bobbin that has been designed for this machine. Bobbin is set incorrectly. You have not threaded the upper thread properly or fitted the bobbin properly. You have not fitted the spool properly. You have not used the right combination of fabric, thread and needle. The needle is bent or blunt. If thin fabrics are being sewn, the fabric is not being fed correctly. The presser foot you are using is not appropriate for the type of stitch that you want to sew. The thread tension is incorrect. How to put it right Replace the needle. Correctly install the needle. Replace the needle plate. Contact your retailer or the nearest authorized service center. Replace the bobbin case. Contact your retailer or the nearest authorized service center. Use a bobbin that has been designed for this machine. Wind the bobbin thread properly. Replace the bobbin. Remove the tangled thread and clean the race. Use a bobbin that has been designed for this machine. Reset the bobbin thread correctly. Correct the upper threading. Wind the bobbin thread properly. Choose a thread and needle that are appropriate for the type of fabric. Attach the presser foot holder properly. Adjust the tension of the upper thread. Use a bobbin that has been designed for this machine. Reset the bobbin thread correctly. Thread the upper thread and wind the bobbin thread properly. Fit the spool properly. Choose a thread and needle that are appropriate for the type of fabric. Replace the needle. Sew with stabilizer material under the fabric. Attach the presser foot that is correct for the type of stitch that you want to sew. Adjust the tension of the upper thread. Page 7 7 - - 11 11 - 38 11 13 14 11 17 - 22 11 13 11-16 15, 20 17 7 20 30 22 41