Sweing problem and remedies
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This document discusses common sewing machine problems and their remedies. It addresses issues like needle thread breakage, skipped stitches, bobbin thread breakage, unbalanced variable stitching, and staggered stitching. For each problem, the document lists potential causes and recommended remedies, such as adjusting thread tension, changing to a stronger thread, properly threading the machine, and replacing worn parts like needles. The goal is to provide solutions to common sewing problems by identifying the underlying causes.
Sweing problem and remedies
- 2. Problem: NEEDLE THREAD BREAKAGE CAUSE REMEDY 1. Excessive tension in needle thread Use stronger thread or adjust tension 2. Thread fraying at needle Use finer thread or coarser needle 3. Thread trapped at thread guide Re guide the thread properly 4. Thread trapping at the base of cone Reduce cone stand height to avoid vibration which can cause thread trapping 5. Snarling before tension disc. Increase thread guides and reduce disc tension. 6. Improper off winding from cone The overhead guide should be directly above cone or the thread package. Also ensure that thread package shouldn’t get tilted during off winding. 7. Sharp edges on throat plate, hook point, needle guard, bobbin needle groove or eye Polish rough edges, replace. Replace needle, use better quality. 8. Excessive needle heat, groove or eye blocked with melted fabric. Change to better needle or throw compressed air to cool down the needle.
- 3. Problem :SKIPPED STITCHES CAUSE REMEDY 1. Failure of needle to enter loop at correct time Check needles is inserted and aligned correctly. Machine clearance and timings. 2. Needle deflection or bent needle Replace the needle 3. Thread loop failure due to incorrect needle size for thread size Change needle size in accordance with thread size. Kindly refer to recommended needle numbers against specified articles. 4. Incorrect sewing tension in the needle Re adjust the thread tension 5. Thread loop failure due to incorrect setting of thread control mechanism Reset to standard and check loop formation through jog mechanism. 6. Flagging of fabric due to poor presser foot control Re adjust presser foot pressure
- 4. Problem : BOBBIN THREAD BREAKAGE CAUSE REMEDY 1. Bobbin tension too light Adjust bobbin case tension by turning screw. 2. Badly wound thread on bobbin Check bobbin winder alignment and adjust it properly. 3. Bobbin case not fitted correctly Check size / type of bobbin check bobbin case 4. Sharp edges on bobbin case Polish edges and contact surfaces. Change bobbin case if necessary.
- 5. Problems : UNBALANCED VARIABLE STITCHING CAUSE REMEDY 1. Improper thread tension Increase thread tension. 2. Unbalanced thread check for snarling; opt for better quality thread 3 Variable tensions due to poor quality thread Change to better quality thread with consistent quality. 4. Incorrect threading Re-guide the thread on machine. 5. Poor fabric feed control Increase presser foot pressure 6. Differential fabric feed Improve fabric feed mechanism.
- 6. Problem : STAGGERED STITCHING CAUSE REMEDY 1. Incorrect needle to thread size relationship Change needle or thread size as appropriate. Kindly refer to recommended needle size against specified articles. 2. Deflected or blunt needle point Change the needle. 3. Needle vibrating or deflecting Increase needle size or change to a reinforced or tapered needle. 4. Feed dog sway Tighten feed dog. 5. Poor and variable control Reset presser foot.