Brother International BAS-411 Upper Thread Breaks - English
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Brother International BAS-411 manual content summary:
- Brother International BAS-411 | Upper Thread Breaks - English - Page 1
Upper thread is not threaded correctly o Correctly thread the machine • Upper thread tension is to tight o Reduce upper thread tension • Needle is not installed correctly o Install needle correctly • Needle is bent or worn o Replace the needle • Presser foot height is incorrect o Adjust presser foot - Brother International BAS-411 | Upper Thread Breaks - English - Page 2
o Modify design to eliminate stitches of .2mm or less • Too much density in design o Reduce density in design • The area around the hole in the needle plate is damaged o Replace needle plate • Rotary hook is out of time o Re-time rotary hook
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Upper thread breaks
•
Upper thread is not threaded correctly
o
Correctly thread the machine
•
Upper thread tension is to tight
o
Reduce upper thread tension
•
Needle is not installed correctly
o
Install needle correctly
•
Needle is bent or worn
o
Replace the needle
•
Presser foot height is incorrect
o
Adjust presser foot height to thickness of material
•
Presser foot has nicks or burrs on it
o
Replace presser foot
•
Needle is hitting the needle plate
o
Reposition needle plate
•
Presser foot is not correctly positioned to the needle plate
o
Align presser foot to hole in the needle plate
•
Rotary hook is dirty or needs to be oiled
o
Clean and oil rotary hook
•
Rotary hook over oiled
o
Clean excess oil from rotary hook
•
Needle bar(s) over oiled
o
Clean excess oil from needle bar(s)
•
Bobbin thread is not wound correctly
o
Replace bobbin
•
Bobbin case is damaged
o
Change bobbin case
•
Scratches on the sliding surface of the rotary hook
o
Smooth scratches or replace rotary hook
•
Poor quality thread
o
Replace thread
•
Fabric is not taut in the hoop
o
Re-hoop garment
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