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Chapter 2 Preparation of Embroidery Machine
BES-962BC • BES-1262BC
56
To loosen
To tighten
2. For adjusting the height, loosen the screw q and turn the tension spring bracket w.
3. For adjusting the tension spring force, insert a driver tip in the groove of the thread tension
bar e and turn it.
Lower thread tension
The standard tension of the lower thread is
0.15~ 0.3N.
This tension may vary depending on the used
thread. In general, press the bobbin case to a
smooth vertical surface and hang the
designated number of coins. Turn the thread
tension screw so that the lower thread will come
out smoothly.
Note) Check that the bobbin is pushed out of the
bobbin case by about 0.5 mm. If not, the slip
prevention spring of the bobbin case does not
work. Adjust the spring in height or replace it
with a new one. (Refer to “Replacing Bob-
bin” on page 46.)