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62 | www.BabyLock.com
Thread Backlash
Corrective Measure(s)
Bobbin thread tangles
within the bobbin case,
tangles and winds onto
the hook spindle, or
occasionally forms loops
on the bottom of the quilt
• Make sure the bobbin is in the bobbin case correctly
and the thread is coming out from under the tension
spring. The bobbin should rotate clockwise when the
thread is pulled.
Motor Fails to Run
Corrective Measure(s)
On/Off switch turned off
• Make sure that both power switches are turned
on. First turn on the rear power switch (to the "|"
position); then turn on the power button on the front-
left side of the machine.
Machine not receiving
power
• Check that the power connector (cord) is securely
plugged into the back of the machine and the three-
prong end is plugged into the power source.
Thread Breaks
Corrective Measure(s)
Thread is poor quality or
may have severe twisting
or thread rot
• Look for severe twisting of threads when
approximately 12 to 15 inches has been pulled off,
with the ends pinched together. Cotton threads are
particularly susceptible to dry rot or wet rot which
makes thread brittle. Do not use poor quality thread,
or thread that is rotted or brittle.
Top and bobbin tensions
not balanced
• Balance the tension of the needle thread after
ensuring the bobbin tension is adjusted correctly. (For
more information about adjusting tension, see
Bobbin
and Bobbin Tension
and
Quick-Set Tension
in the
Using Your Machine
section of this manual.)