Brother International Entrepreneur PR-650 Users Manual - English - Page 261

Symptom Probable Cause Remedy Reference Page The thread tension does not correspond to the amount that the thread tension knob was tightened. If the thread tension cannot be adjusted, thread wax and dust may have collected in the upper or middle thread guide plates, causing the thread tension guide plates to rise. Clean the thread tension guide plates. p.248 There are loops in the upper thread. Thread is not correctly threaded around upper thread tension discs. Clean upper thread tension disc. Rethread and make sure tension disc rotates when pulling on thread. p.249 The thread quality is poor. Try sewing with different thread. If the problem no longer occurs after the thread is changed, the thread quality is the problem. Replace the thread with one of good quality. Lint may be wound in the hook. Clean the hook. p.245 The machine is The upper thread is not threaded correctly. Check the thread path, and then thread the upper thread again. p.55 noisy. Replace the hook. The hook is damaged. Consult your nearest authorized dealer. Not enough oil was applied. Oil recommended parts. p.250 Touch the key to move the The needle is not at the correct desired needle bar to be position. threaded into embroidering p.62 position. The needle threader cannot be used. Recommended needles are not used on this machine. The needle is not installed correctly. Replace and use recommended needle. Correctly install the needle. p.33, 86 p.33, 86 The hook on the automatic needle-threading mechanism is bent. Consult your nearest authorized dealer. p.33, 86 The thread The upper thread is not threaded correctly. Check the thread path, and then thread the upper thread again. p.55 tension is incorrect. The bobbin thread is not correctly threaded. Correctly thread the bobbin thread. p.36 The lower thread tension is incorrect. Adjust the tension of the bobbin thread. p.112 The upper thread comes out of the needle when embroidering begins. If a short length of thread remains after the thread is trimmed, the needle may become unthreaded when embroidering begins again. Set the remaining length of thread to "LONG TAIL" on the second page of the settings screen. p.201 7 The upper thread There is no more thread in the does not reach bobbin, the thread does not the bobbin thread feed from the bobbin, or the when thread that is fed from the Correctly thread the lower thread. p.36 embroidering bobbin is too short. begins. Troubleshooting 259