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5.
Proper Operation
5-1 Needles to be used and the Installation
Needle UY128GAS of Schmetz or Organ is to be used.
There are many sizes of needle, and the most suited
needle to the thickness and the kind of material should
be selected.
Japanese size
9
10
11
12
13
14
Metric size
65
70
75
80
85
90
Replacing needle should be made correctly with the
scarf facing rightly backward as shown in the
illustration.
5-2 Threading
Threading should be made correctly referring to the illustration.
Improper threading might cause skip stitch, thread breakage and uneven tension.
A, B, C
…
needle thread D
…
top cover thread E
…
looper thread
The threading for three needle machine is shown in the illustration below.
For two needle machine, threading is the same except two needle thread.
Easy threading is possible with the lifting up of Supporting Plate by pressing Lever(F).
After threading, return it back to the original position by pressing part(G) without fail.
A B C
E
D
F
G
For Woolly Thread
×
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