Husqvarna Viking Platinum Q 165 User Manual page 52

Bobbin case is damaged,
corroded, dirty, etc.
Moving the machine too fast for
needle speed selected
(Manual mode)
Tension is Poor
Lint caught under the tension
spring in the bobbin
Hand Wheel Won't Rotate
Thread is entangled and caught
in the hook
Thread Nests Under Quilt
Not enough tension on
top thread
Improper threading
Hard to Guide Machine
Carriage wheels not centered
on track
Thread caught in wheels
Motor Fails to Run
On/Off switch turned off
Machine not receiving power
• Since thread slides over the surface of the bobbin case at a high
speed, make sure the case is free of any lint or foreign matter that
could impede thread passage through the machine.
• Synchronize machine movement and needle speed to get roughly
8 to 10 stitches per inch. Elongated stitches are an indication of
moving the machine too fast for the current speed.
Corrective Measure(s)
• If using short staple threads, inexpensive, or industrial threads,
or coated threads, lint and other material will build up under the
tension spring and begin to lift the spring, reducing the spring's
ability to compress against the thread. Insert a needle or 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.
Corrective Measure(s)
• 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.
Corrective Measure(s)
• 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 and Top Thread
Tension in the Using Your Machine section of this manual.)
• Refer to threading diagram and threading instructions.
Corrective Measure(s)
• Center the carriage wheels on top of the continuous track. Check
that the machine carriage has not jumped the track.
• Remove all thread or debris in wheels. Check that the tracks are
free of lint and threads.
Corrective Measure(s)
• Turn the machine on by using the switch on the back.
• 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.
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