Mitsubishi Electric LT2-2220-B0B Instruction Manual page 8

Double-needle lockstitch needle-feed industrial sewing machine
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HOW TO USE
3 . If the strong twisted thread (nylon or Tetron, etc.) is used and needle threads tension is strong (about
500gf or more), the right thread may be released from the thread tension disc. In this case, thread
only the right thread as shown in the figure (keep the left thread standard).
Needle thread (right)
Pin
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
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