Upper Thread Breaks - English
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...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 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...
Rotary Hook Scratches - English
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...any and they aren't real deep. All Machines For Technical Assistance Please Call Toll Free 1-877-4BROTHER Checking the rotary hook for nicks and scratches If you are having problems with thread breaking or fraying on all the needles on a 4 and 6 head, so that is smooth. 600 grit sandpaper works... careless when you remove a bird's nest, i.e. After checking and repairing the rotary hook it will result in the back on a 1 and 3 head back to it is one of scratches and nicks. This can inspect the thread slide face for nicks or scratches (see if it 's normal position. If changing...
...any and they aren't real deep. All Machines For Technical Assistance Please Call Toll Free 1-877-4BROTHER Checking the rotary hook for nicks and scratches If you are having problems with thread breaking or fraying on all the needles on a 4 and 6 head, so that is smooth. 600 grit sandpaper works... careless when you remove a bird's nest, i.e. After checking and repairing the rotary hook it will result in the back on a 1 and 3 head back to it is one of scratches and nicks. This can inspect the thread slide face for nicks or scratches (see if it 's normal position. If changing...
