
Remedy:
Change needle to a thinner one
Remedy:
Use needle with ball point (SUK type)
Remedy:
Apply silicon oil on thread
Remedy:
Remedy:
Remedy:
Use spun polyester or corespun threads instead of Cotton
Remedy:
Ensure overhead guide is directly above cone at 3 times the cone height
Remedy:
Use foam pad underneath cone to prevent trapping after thread break
Cause: Thread trapped at thread guide
Remedy:
Increase wraps on pretension guides and reduce disc tension. Ensure disks are smooth.
Remedy:
Remedy:
Remedy:
Change needle
Remedy:
Adjust thread tension to a lower value
Remedy:
Change the deffective parts in contact with the thread (throat plate,hook point,needle guard,bobbin case,disks)
Remedy:
Change to better quality sewing thread
Remedy:
Adjust bobbin winder alignment.
Remedy:
Adjust bobbin case tension
Remedy:
Polish edges and contact surfaces
Remedy:
Check size/type of bobbin
Remedy:
Remedy:
Change needle
Remedy:
Change to better quality sewing thread
Remedy:
Remedy:
Remedy:
Change needle size / type
Remedy:
Remedy:
Remedy:
Change thread to one with suitable characteristics
Remedy:
Adjust needlethread or underthread tension
Remedy:
Change sewing thread
Remedy:
Change to better quality sewing thread
Remedy:
Change to better quality sewing thread
Remedy:
Remedy:
Check clearance between needle and hook
Remedy:
Remedy:
Remedy:
Remedy:
Remedy:
Train the operator
Remedy:
Remedy:
Change type of thread from cotton to spun polyester or corespun
Remedy:
Pay attention to the sewing of the exposed stitches
Remedy:
Use threads of similar shrinkage or similar raw material to that of the fabric