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Troubleshooting
(Continued)
Tension Is Poor
Corrective Measure(s)
Lint caught under the tension
spring on the bobbin case
• If using short staple threads, inexpensive threads, industrial
threads, or coated threads, lint and other material will build
up under the tension spring and begin to lift the spring. This
reduces the spring’s ability to compress against the thread.
Insert the corner of a business card under the spring and clear
out the lint. The bobbin tension will return fairly close to its
preset tension. Test the tension before quilting.
Hand Wheel Won’t Rotate Corrective Measure(s)
Thread is entangled and caught
in the hook
• There may be a thread lock. Quickly rock the hand wheel, at
the back of the machine, back and forth several times. You
may need another person to turn the hand wheel while you
look for the thread that is caught. Once thread lock is cleared
re-oil the hook and make sure the hand wheel turns freely.
There is a thread lock.
• Carefully rock the hand wheel in direction of motion and then
the other direction until the thread lock breaks free. Once the
hand wheel can be turned freely, remove the thread from the
hook and basket. Now re-oil the hook and make sure the hand
wheel turns freely without the hook hitting the needle. It is
possible for a thread lock to cause a timing problem.
Thread Nests under Quilt
Corrective Measure(s)
Not enough tension on top
thread
• Check that the machine is threaded correctly. Make certain
that the thread is flossed snugly in place between the two
tension discs. If the machine is threaded correctly, tighten top
tension by rotating the tension knob clockwise. (For more
information about adjusting tension, see Bobbin and Bobbin
Tension in the Using Your Machine section of this manual.)
Improper threading
• Refer to threading diagram and threading instructions.
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.
Hard to Guide Machine
Corrective Measure(s)
Carriage wheels not centered
on track
• Center the carriage wheels on top of the continuous track.
Refer to your frame instructions.
• Check that the machine carriage has not jumped the track.
Thread caught in wheels
• Remove all thread or debris from the wheels.
• Check that the tracks are free of lint and threads.
Summary of Contents for Quilt Maker 15
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