Raise the needle to its highest position. Open the slide plate on the bed of the machine to reveal the bobbin area.
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Identifies "bad sectors" by measuring response times in milliseconds. Raise the needle to its highest position
Place a drop of oil on the moving joints inside the top access panels if the machine squeaks. It allows tech professionals to perform for both
Healthy sectors with fast response times.
Incorrect threading is the number one cause of loop knots and broken threads. Follow these steps precisely:
Disengage the handwheel (usually by turning the inner knob). Wind the bobbin using the pin on the top or side.