Brother International BE-1201B-AC Motor Locks - English - Page 3

Inner rotary hook adjuster set incorrectly

Page 3 highlights

Motor Locks - Causes and Solutions For Technical Assistance Please Call Toll Free 1-877-4BROTHER Moving knife is out of adjustment o Before adjusting moving knife check the fixed knife to see if it is 10mm from the needle and against the pin. Usually if the fixed knife is pushed all the way back against its adjustment slot that is approximately 10mm. If needed adjust clearance of moving knife to 1.2 mm. You will need to remove the chrome are cover to gain access to the adjustment bolts. Inner rotary hook adjuster set incorrectly • Check clearance of inner rotary hook stopper, also known as the positioning finger. It may be in to far causing thread to wrap around it. Thread take up lever striking the needle case cover o Adjust thread take up driving lever so that all take up levers are even. Make sure this is done at stop position (100 degrees). You will need to remove the tension base to gain access to the adjustment bolt. Needle depth or 0 degree stopper out of position o Adjust needle depth first and then 0 degree stopper. Please refer to your instruction manual for adjustment. Page 3 of 3

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Moving knife is out of adjustment
o
Before adjusting moving knife check the fixed
knife to see if it is 10mm from the needle and
against the pin. Usually if the fixed knife is
pushed all the way back against its adjustment
slot that is approximately 10mm. If needed
adjust clearance of moving knife to 1.2 mm.
You will need to remove the chrome are cover
to gain access to the adjustment bolts.
Inner rotary hook adjuster set incorrectly
Check clearance of inner rotary hook stopper,
also known as the positioning finger. It may be in to
far causing thread to wrap around it.
Thread take up lever striking the needle case cover
o
Adjust thread take up driving lever so that all take up levers are even. Make sure this
is done at stop position (100 degrees). You will need to remove the tension base to
gain access to the adjustment bolt.
Needle depth or 0 degree stopper out of position
o
Adjust needle depth first and then 0 degree stopper. Please refer to your instruction
manual for adjustment.
Motor Locks – Causes and Solutions
For Technical Assistance Please Call Toll Free
1-877-4BROTHER