Machine Out Of Timing
It is rare for the machine to go out of timing, but the most frequent cause is spiking
the hoop. Spiking means that the needle strikes or is embedded in the hoop while
sewing. When this happens, the machine is stopped abruptly, jarring the mechanical
parts.
Even if the machine does not go out of timing, spiking the hoop will likely break, or
at least dull the needle. It is a good idea to change the needle, whether or not it is
broken.
If the presser foot and the hoop collide, the presser foot may be bent enough that it
rubs the needle and causes thread breaks.
However, even if spiking the hoop occurs, it does not automatically mean the head is
out of timing. When you have a sewing quality problem, check the following before
adjusting the sewing head timing:
•
Tension settings (upper and lower).
•
Needle condition, size, and type of point.
•
Lubrication of hook assembly and head.
•
Nicks in the presser foot or needle plate.
•
Presser foot height.
•
Stitch density.
•
Proper sewing technique for the material, backing and
thread.
•
Material properly hooped.
•
Needle Bar depth too low or too high.
3 - 3
110207-01, Rev. B
3. Hook Timing
