—47—
Triple coverstitch
Correct tension
The picture shows the correct tension of 3
needle threads and chainstitch looper thread.
When needle thread is too loose
Increase thread tension dial
➀ (➁ , ➂), or
decrease the chainstitch looper thread tension
dial
④.
When chainstitch looper thread is too loose
Increase the chainstitch looper thread tension
dial
④.
1
2
3
4
5
N
7
5
6
7
5
6
7
2
3
N
1
2
3
4
5
N
7
5
6
7
5
6
7
2
3
N
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