Adjusting The Position Of The Shuttle Upper Spring (Same Adjustment For This Side And Far Side); Form Of The Inner Hook Presser - JUKI MOL-254 Engineer's Manual

4) Adjusting the position of the shuttle upper spring (Same adjustment for this side and far side)

The lateral position in terms of the needle entry point should be equal on both left and right sides.
Adjust the longitudinal position so that the rear end of the needle is aligned with corner section
(Caution) If there is a scratch on section
when there is a scratch.

5) Form of the inner hook presser

If the blade point of the inner hook is excessively worn out, remove the inner hook presser and make
sure that the dimension of the slant section on the rear side is 0.2 mm X 0.8 mm.
Standard Adjustment
, bobbin thread breakage will occur. Polish there
8 mm (0.314")
0.2 mm (0.007")
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