Barudan BEXS, Инструкция по эксплуатации

Страница: 209 / 233

When different problems show up on different letters, the problem is in the top tensions.
Letters #1, #2 and #7 need the top tension loosened so the bobbin can pull more of the top
thread to the back. Letters #3, #4 and #9 need the top tension tightened because there is too
much of the top thread being pulled to the back.
Adjusting the Top Tension
There is a pretensioner for each needle. The pretensioners control the flow of thread from the
cone to the top tensioners. The pretensioners are set, according to the type of thread you are
using, to allow a smooth flow of thread to the top tensioners. The pretensioners should only
need adjustment when you change from a light weight thread to a heavier weight, or vice
versa, and to tighten top thread when looping.
Adjusting the Pretensioners
1.
If the thread does not flow freely, loosen the pressure on the spring that holds the
disk down by turning the tension knob counterclockwise.
2.
If the thread flows too freely, increase the pressure on the spring that holds the
disk down by turning the tension knob clockwise.
The top tensioners controls the top thread tension. If the top tension is too tight, the bobbin
will not be able to pull enough of the top thread to the back of the embroidery. Top tension
that is too tight may cause thread breaks, needle breakage, or puckering of the fabric. If the
tension is too loose, the bobbin will pull too much of the top thread to the back of the
X
Series Mechanical Guide 1-21