Chapter 2 Preparation of Embroidery Machine
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- |
To tighten | bin” on page 46.) |
To loosen
56 |
