handi quilter HQ18 Avante, Руководство пользователя

Страница: 35 / 44

Page 28
HQ
18
Avanté User Manual
Troubleshooting
HQ 18 Avanté
™
User Manual 1.0 Page 22
Tension is Poor Corrective Measure

“Fuzz” caught under the
tension spring in the bobbin

Poorly wound bobbin.

If using short staple threads, inexpensive or industrial threads or coated threads, lint and other
material will build up under the tension leaf spring and begin to lift the spring, reducing the
spring’s ability to compress against the thread. By inserting a needle under the spring and
clearing out the lint, the bobbin tension will return fairly close to its preset tension.

If the bobbin is wound too tight or too loose, this can lead to poor and inconsistent tension. Make
sure when the bobbin is wound that the thread tension is not so tight that the wound bobbin
thread feels hard and causes the bobbin to bulge when it is wound. It should also not be so
loose that the thread is spongy, causing the thread to tangle as it is wound.
Hand Wheel Won’t
Rotate
Corrective Measure

Thread is entangled and
caught in the hook

Turn off the machine and unplug the machine from the electrical outlet. Lubricate the hook,
strongly turn the hand wheel clockwise and if necessary counterclockwise several times, and
then remove the thread caught in the hook.
Thread Nests Under
Quilt
Corrective Measure

Not enough tension on top
thread

Improper threading

Check that the machine is threaded correctly. Make certain that the thread is flossed snugly in
place between the two tension discs. If machine is threaded correctly, tighten top tension by
rotating the tension knob clockwise.

Refer to threading diagram and threading instructions (page 12).
Hard to Guide Machine Corrective Measure

Carriage wheels not centered
on track

Thread caught in wheels

Center the carriage wheels on top of the continuous track. Check that the machine carriage has
not “jumped” track.

Remove all thread or debris in wheels. Check that the tracks are free of lint and threads.
Motor Fails to Run Corrective Measure

On/Off switch turned off

Machine not receiving power

Turn the machine on by using the switch on the back power pod.

Check that the power connector is securely plugged into the back of the machine and the three-
prong end is plugged into the power source.
Uneven Quilt Design Corrective Measure

Take-up rollers may be
bowed or bent

Leaders are stretched/worn

Make certain the fabric is not rolled too tight, causing the poles to bow. Check that poles are
inserted completely together with the push pin engaged so bowing won’t occur.

If fabric is beginning to stretch or fray, contact Handi Quilter for replacement leaders.
Needle Thread Breaks Corrective Measure

Thread cones/spools are
poor quality or may have
severe twisting or thread rot

Top and bobbin tensions not
balanced

The machine head has been
threaded incorrectly or
thread spools are not
positioned correctly

Particles in tension discs

Bobbin rotation is not smooth

Needle is burred, bent or dull,
or installed incorrectly

Needle not suited for thread

Hesitating too long at one
point in pattern

Improper needle/hook
relationship

Damage or “Burr” at needle

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 which
makes thread brittle. Do not use poor quality thread, or thread that is rotted or brittle.

Check thread tension in top and bobbin for proper balance. See pages 11-12.

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.

Inspect for particles and remove any fuzz or debris.

Change the bobbin. The slightest hesitation of the bobbin rotation can be the cause of dramatic
tension change and thread breakage.

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.

Replace the needle to one better suited for the thread. Use the proper size needle.

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.

Timing of the machine is improper. Consult a repair technician.

If thread is shredding at the throat plate, check for burrs or jagged edges. Gently rub with metal