To Next PageTo Next Page
Need help?Do you have a question about the Singer 331K4 and is the answer not in the manual?
General| Brand | Singer |
|---|---|
| Model | 331K4 |
| Category | Sewing Machine |
| Language | English |
Instructions for oiling the bobbin winder mechanism for optimal performance and longevity.
Guidance on removing lint and abrasive matter from critical machine parts for proper operation.
Guidance on selecting and using the correct thread type and twist for Singer 331K machines.
Information on choosing appropriate needles, their catalog numbers, and proper insertion into the needle bar.
Step-by-step instructions for correctly setting the needle in the needle bar for optimal stitching.
Identifies common issues causing poor stitching and provides troubleshooting advice for needles and their setting.
Detailed steps for correctly threading the upper thread through the sewing machine.
Instructions on how to safely remove the bobbin from the bobbin case and shuttle body.
Procedure for winding thread onto a bobbin using the machine's bobbin winder.
Step-by-step guide to properly thread the bobbin case with thread before inserting it into the shuttle.
Instructions for correctly inserting the threaded bobbin case back into the shuttle body.
Steps to take before starting to sew, including drawing up bobbin thread and closing the machine bed slide.
Guidance on how to begin sewing after preparation, including material placement and lowering the presser foot.
Technique for pivoting the material to sew around a corner without stopping the machine.
Steps for safely removing finished work from the sewing machine.
Explanation of proper thread tension balance between needle and bobbin for quality stitching.
How to adjust the tension of the thread in the bobbin case for optimal stitch formation.
Procedure for adjusting the needle thread tension, noting its relation to the presser foot position.
Guidance on adjusting the presser foot pressure for efficient and smooth material feeding.
Instructions for setting the stitch length on the 331K1 model using the indicator plate.
How to adjust stitch length on the 331K4 model using the feed-reversing lever and thumb screw.
Explanation of how to use the feed-reversing lever for back tacking and sewing in reverse.
Details on how the stop motion device works, allowing bobbin winding without running the main stitching mechanism.
Instructions for acquiring correct treadling habits for smooth and controlled machine operation.
Procedure for adjusting the presser bar to the correct height for optimal sewing performance.
Steps to correctly set the needle bar height, ensuring proper timing with the shuttle.
Detailed instructions for checking and re-setting the shuttle timing for correct stitch formation.
Adjusting the height of the check spring for proper operation of the take-up lever mechanism.
Regulating the tension on the check spring based on thread and material requirements.
Procedure for timing the feed dog movement to ensure correct fabric feeding during stitching.
Adjusting the height of the feed dog to ensure it projects correctly above the throat plate.
Adjusting the sideways and lengthwise position of the feed dog within the throat plate slots.
Instructions for removing and reinstalling the shuttle race assembly for maintenance or repair.
