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Adjustment Procedures Results of Improper Adjustment
Loosen the nut and adjust the position of the stopper so that the
clearance provided between the starting safety arm and the
presser bar lever is 0.3 to 0.8 mm.
Adjust the stopper screw and the nut so that the clearance
provided between the starting safety lever and the starting safety
hook is 0.5 ± 0.2 mm (0.3 to 0.7 mm) when the starting lever is
fully depressed
™ When there is no clearance
between the starting safety arm and
the presser bar lever, both parts
interfere with each other and the
presser may not be lifted.
™ If the clearance is excessively small,
starting may not function.
™ If the clearance is excessively large,
starting pedal becomes heavy due
to the needle thread trimmer control
lever.
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