25
Sewing test
Use two plies of material to check that the quality of the nished
seam and thread tensions are correct.
1. Close the looper cover. Turn the power on.
2. Check that the upper knife is raised.
3. Lower the presser foot.
4. While holding the thread trailing from the rear of the presser foot
by hand, depress the controller to produce chain-o thread by 6
to 7 cm.
5. Raise the front side of the presser foot with ngers and insert the
material under the presser foot until the upper knife is reached.
6. Start the sewing machine.
7. After the completion of sewing, produce chain-o thread by 5 to 6
cm.
8. Put the chain-o thread over the thread trimming blade for trim-
ming.
* Chain-o thread is stitch-formed thread with no material.
Trial sewing
5-6 cm
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