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Inserting the Bobbin
Turn power switch to off before inserting or removing the bobbin.
• Remove the bobbin cover plate by pushing the small tab to the right
of the cover towards the right.
• Insert the bobbin in the bobbin case with the thread running
counterclockwise direction (arrow).
• Pull the thread through the slit (A).
• Draw the thread clockwise until it slips into the notch (B), while
holding the bobbin down with the tip of your finger.
• Pull out about 15 cm (6 inches) of thread towards the back of the
plate and attach the bobbin cover plate. (C)
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Need help?
Do you have a question about the HEAVY DUTY 4423 and is the answer not in the manual?
Questions and answers
position of the needle does not seem correct when i move the dial at the top. when the dial is put to needle in the middle it is not in line with the line on the foot as it should be
how do you make the machine do the stiches in blue, or the stretch stiches, on the pattern dial?
To select blue stitches and stretch stitches on the Singer Heavy Duty 4423, turn the pattern selector dial to the desired pattern indicated in blue. The blue color on the dial represents stretch stitch patterns. The dial can be turned in either direction to choose the appropriate stitch.
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in the lower bobbin area, the top thread is getting stuck and won't pull the bobbin thread through
The top thread of the Singer Heavy Duty 4423 may be getting stuck in the lower bobbin area due to the following reasons:
1. Thread Caught in Hook – The thread may be tangled in the hook mechanism. Remove the upper thread and bobbin case, then gently rock the handwheel back and forth to clear any trapped thread.
2. Incorrect Threading – If the upper thread is not threaded correctly, it can cause jamming. Re-thread the machine carefully, following the correct threading path.
3. Damaged Needle – A bent or damaged needle can prevent proper stitching. Replace the needle with a new one.
4. Bobbin Case Issues – If the bobbin case is incorrectly inserted or damaged, it can cause thread tangling. Check and reposition the bobbin case properly.
These steps should help resolve the issue and ensure smooth stitching.
This answer is automatically generated
My reverse button lever inside sewing machine is stuck? How do I fix this?