Page 54
Quit Maker Pro 18 VERSA
Bobbin case is damaged,
corroded, dirty, etc.
•
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 .
Moving the quilt too fast
for needle speed selected
(Manual mode)
•
Synchronize quilt movement and needle speed to get your desired
stitch length. Elongated stitches are an indication of moving the
quilt too fast for the current speed.
Tension is Poor
Corrective Measure(s)
Lint caught under the tension
spring in the bobbin
•
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, reducing the
spring’s ability to compress against the thread. Insert a pin or 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, creating a thread lock
•
Carefully rock or turn 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
and
Easy-Touch
Tension™
in the
Using Your Machine
section of this manual.)
Improper threading
•
Refer to threading diagram and threading instructions.
Thread Backlash
Corrective Measure(s)
Summary of Contents for Quilt Maker Pro 18 VERSA
Page 1: ...Janome Quilt Maker Pro 18 VERSA Service Manual...
Page 57: ...Janome America com Page 57 Notes...
Page 58: ......
