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MACHINE MAINTENANCE – 41
Fabric Puckers
Possible Cause: Thread tensions are set too tightly.
Solution: Loosen thread tensions (page 27).
Possible Cause: Thread is not unreeling smoothly o the thread spool.
Solution: Check the thread spool to ensure thread is not getting caught.
Possible Cause: Using thread that is poor quality or has uneven lament.
Solution: Use good quality thread with a smooth, even lament.
Possible Cause: Stitch length is set too short.
Solution: Adjust stitch length to a longer setting (page 26).
Possible Cause: Dierential Feed is not set in the correct position for the fabric being sewn.
Solution: Adjust the Dierential Feed (page 25).
Needle Breaks
Possible Cause: Needle may not be properly seated in the needle clamp.
Solution: Insert needle so that it is all the way up in the needle clamp, then tighten the screw securely (page 10).
Possible Cause: Manually pulling fabric from behind presser foot while sewing which causes needles to deect.
Solution: Refrain from pulling fabric manually; allow feed teeth to draw fabric under presser foot.
Possible Cause: Needle may not be the correct size for the fabric being sewn.
Solution: Use a needle size that is compatible for the fabric (page 12).
Thread Breaks
Possible Cause: Machine may not be threaded correctly.
Solution: Check that machine is threaded in correctly as shown in machine manual (page 14-23).
Possible Cause: Thread is not unreeling smoothly o the thread spool.
Solution: Check the thread spool to ensure thread is not getting caught.
Possible Cause: Needle(s) may have a bent, dull or broken point.
Solution: Replace needle(s) (page 10).
Possible Cause: The needle is inserted incorrectly
Solution: Insert the needle correctly (page 10).
Possible Cause: Using thread that is poor quality or has uneven lament.
Solution: Use good quality thread with a smooth, even lament.
Possible Cause: Thread tension is set too tight.
Solution: Loosen thread tension (page 27).
Possible Cause: Thread is caught in one of the thread guides.
Solution: Check threading path to ensure all threads are feeding smoothly.
Stitches Skipping
Possible Cause: Needle(s) may have a bent, dull or broken point.
Solution: Replace needle(s) (page 10).
Possible Cause: Needle may not be properly seated in the needle clamp.
Solution: Insert needle so that it is all the way up in the needle clamp, then tighten the screw securely (page 10).
Possible Cause: Needle may not be the correct size for the fabric being sewn.
Solution: Use a needle size that is compatible for the fabric (page 12).
Possible Cause: Machine may not be threaded correctly.
Solution: Check that machine is threaded in correctly as shown in machine manual (page 14-23).
Possible Cause: Using thread that is poor quality or has uneven lament.
Solution: Use good quality thread with a smooth, even lament.
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