Singer 471U - Thread Breakage Detection Adjustment

^ Thread breakage detection assembly adjustment
If this assembly is not properly adjusted, the thread cutterwilloperate eventhoughthe thread has broken during
sewing.
0
,
1. When the machine isstopped,loosenthe twoset screws 0 and move thecutterclutchstopper© rightorleftso
that thecutter clutch stopper0 dropsintothecutterstoppin groove 0 when thethread breakage detector lever
0 meets the stopper 0.
2. When the machine is stopped, loosen set screw 0 and move the thread breakage detector thread guide 0 sothat
the
thread breakage detector thread guide 0 to arm thread guide 0 gap is6~ 8 mm when the thread breakage
detector lever 0 meets the stopper 0.
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From the library of: Superior Sewing Machine & Supply LLC