Barudan BEVT Series, Инструкция по эксплуатации

Страница: 161 / 193

Removing the Bobbin Case
1. Make sure the needle is at the highest position by verifying that the word “TOP” is
displayed on the screen. If not, rotate the main motor pulley so the needle is at the
correct position.
NOTE: It is necessary to remove the rear cover in order to access the main
motor pulley.
2. Pull the bobbin case latch, and the case will slide out of the hook assembly.
Inserting the Bobbin in the Case
1. Place the bobbin in the case, so that the bobbin rotates clockwise when you pull the
end of the thread.
2. Guide the thread into the slot on the side of the bobbin case.
3. Pull the thread under the tension spring and wrap it
through the pigtail on the front of the bobbin case.
4. Leave several inches of thread hanging from the bobbin
case.
Replacing the Bobbin Case
1. Hold the latch on the bobbin case open, positioning the
case on the shaft of the hook assembly, ensuring that the
bobbin remains in place.
2. Make sure the thread left hanging is on top.
3. Release the latch and press the bobbin case into position until a distinct “click” is
heard. If the click is not heard, remove the bobbin case and try again.
CAUTION! Do not attempt to force the bobbin case into the hook
assembly. If resistance is felt, remove the bobbin case, realign the case with
the hook and reinsert it.
Stitch Theory
To fix problems that may occur during sewing, it is important to understand how stitches are
formed. Timing is the relationship between the rotary hook assembly and sewing needle. The
hook and the needle must be in perfect synchronization to have properly formed stitches.
1
- 1
1
Machine Basics BE
V
T Series
Mechanical
Guide
SLOT
TENSION
SPRING TENSION
SPRING
PIGTAIL