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Service Manual
To allow sufficient space for cutting without damaging the thread, the buttonhole cutting space must be
approximately 0,50 mm - ,00 mm ( .020" - .040") .
Check:
1-
Remove presser foot.
2- Insert a number 9 needle to provide better visibility and accuracy when checking buttonhole cutting
space.
3- Turn buttonhole control dial to number " " position.
4- While holding a piece of paper over the needle plate, make two needle penetrations.
5- Without disturbing the position of the paper, turn buttonhole control dial to number "3" position and
make two more needle penetrations.
6- The distance between the two inner perforations should be 0,50 mm - 00 mm (.020" - .040").
Adjustment:
1-
Remove the free arm extension table, tension assembly dial, the knobs of the zig-zag and needle
position levers and all covers (face plate, rear, bottom bed and front).
2- Loosen screw (C) while maintaining the position of bracket (B).
3- Move stitch width control lever (A) left to increase space and right to decrease cutting space.
4- Tighten screw (C).
5- Recheck and readjust if necessary.
Rev. n .
o
MAY/00
Buttonhole cutting space
1
1
117
1,
P/N 357773-002
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