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SETTING T H E T H R E A D REGULATOR
The thread regulator spring 147 must contact the limiter 148 when the eye of the needle
(downward motion) is flush with the needle plate. The stop 148 can be set by turning
screw 149.
The tension of the regulator spring 147 is also important. It is correct when the needle is
held tight by spring 147 during the downward motion of the take-up lever.
The tension can be increased or decreased by turning screw 1 50 to left or. right.
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