Adjusting the speed transmitter fig2v, Adjustment of the needle thread trimmerfig28 – SINGER 1371A2 User Manual
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24. ADJUSTING THE SPEED TRANSMITTER
* Adjustment of the position of the belt shifter
When the hand stop crank is turned down to the low speed position, loosen screw ® and
allow the belt to move onto low-speed pulley ®, moving the position of belt shifter @.
* Adjusting the stopper screw
Perform adjustment by stopper screw
so that belt shifter @ does not cause the belt to
come off high-speed pulley ® during high speed operation.
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25. ADJUSTMENT OF THE NEEDLE THREAD TRIMMER