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powerquilter 1650 Quilting Machine User’s Guide
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
Top Thread
Tension
in the
Using Your Machine
section of this manual.)
The machine head has been
threaded incorrectly or thread
spools are not positioned
correctly
•
Check that the machine is threaded correctly.
•
Inspect for accidental double wrapping of thread on
thread guides.
•
Inspect the thread mast, making sure the eyelets of the mast are
directly over the spools.
•
Inspect the vertical positioning of the thread cones. Tipped cones
can dramatically affect thread tension and can cause breakage.
Debris in tension discs
•
Inspect for particles and remove any fuzz or debris.
Bobbin rotation is not smooth
•
Change the bobbin. The slightest hesitation of the bobbin rotation
can be the cause of dramatic tension change and
thread breakage.
Needle is burred, bent or dull, or
installed incorrectly
•
Change the needle at least once per quilt. Make sure the needle
is installed to the top of the stop hole in the needle bar.
Needle not suitable for thread
•
Replace the needle to one better suited for the thread. Use the
proper size needle.
Hesitating too long at one point
in quilting motif
•
Move more quickly so stitches don’t overlap or build up. When
starting the machine, begin moving immediately. Sewing in one
place too long will cause the thread to break.
Improper needle/hook
relationship
•
Machine timing needs to be checked. Consult an authorized
Husqvarna Viking® technician.
Damage or burr at needle hole
of needle plate or other thread
handling part
•
If thread is shredding at the needle plate, check for burrs or
jagged edges. Gently rub with metal cloth to remove the sharp
edge. Consult a repair technician to polish any hard-to-reach or
delicate areas, or if the burr is inside the throat.
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