Why does my Brother S-7220D Sewing Machine skip stitches?
If the needle tip is bent or blunt, replace the needle. Ensure that the needle is correctly installed. Verify that the machine is properly threaded. Adjust the presser foot pressure if it's too weak. If the needle is too thin, replace it with a thicker one.
Why are the upper and lower threads breaking on my Brother S-7220D Sewing Machine?
If the needle tip is bent or blunt, replace the needle. Ensure the needle is correctly installed. Make sure the machine is properly threaded. Check if the rotary hook is sufficiently lubricated; if the oil gauge is low, add more oil. Adjust the upper or lower thread tension if it's too strong or weak. Adjust the position of the thread take-up spring if the upper thread is loose. Smooth any damage to the thread path with sandpaper. If the rotary hook, feed dog, or other part is damaged, smooth it with sandpaper or similar.
What to do if my Brother S-7220D does not operate?
First, ensure that the power supply for the control box is properly connected by inserting the connectors securely. Also, verify that the operation panel is set to a screen where sewing is possible, such as the home screen.
How to prevent my Brother S-7220D Sewing Machine needle from breaking?
If the material is being pushed or pulled with excessive force during sewing, avoid doing this. If the needle is incorrectly installed, install it correctly. If the needle tip is bent, broken, or the needle hole is blocked, replace the needle. Adjust the height of the needle bar if the needle and rotary hook timing are incorrect. Adjust to the standard timing if the needle and feed mechanism timing are incorrect.
What to do if the oil gauge is not visible in my Brother Sewing Machine?
Fill the oil tank with oil.
Why does my Brother Sewing Machine stop during sewing?
In main sewing mode, set the sewing pattern to something other than "Fixed stitch". Check the power supply voltage.
Why is the lower thread tangled at the start with my Brother S-7220D?
If the bobbin is spinning direction is not correct when the lower thread is being pulled, set the bobbin so that it turns in the opposite direction to the rotary hook. Ensure the bobbin winding amount should not be more than 80%. Attach the anti-spin spring, if it is not attached. If the bobbin is not turning smoothly, replace the bobbin. Use only bobbins which are specified by Brother.
Why isn't my Brother Sewing Machine trimming the upper thread?
If the needle is incorrectly installed, install it correctly. If the fixed knife or movable knife is blunt, replace them.
How to fix an uneven seam on my Brother Sewing Machine?
To correct an uneven seam, adjust the presser foot pressure if it's too weak. Also, adjust the feed dog height. If the bobbin is damaged, smooth it with an oiled grindstone or replace it.
What to do if loops appear in the seam of my Brother S-7220D Sewing Machine?
To resolve loops appearing in the seam, polish the thread path with a fine-grain file or sandpaper to ensure it's smooth. Also, pull out the lower thread to check for slackness in the thread tension, and replace the bobbin or bobbin case if necessary.
General| Stitch Type | Lock stitch |
|---|---|
| Feed Mechanism | Drop feed |
| Needle Size | 9-18 |
| Free Arm | No |
| Max Stitch Length | 5 mm |
| Max Sewing Speed | 5000 stitches per minute |
| Stitch Options | Straight stitch |
| Presser Feet | Standard |
| Lubrication | Manual |
Explains the meaning of danger, warning, and caution labels used in the manual.
Details the meaning of various safety symbols used on the machine and in the manual.
Notes and precautions to observe before installing the sewing machine.
Instructions for connecting power, control, and ground wires.
Guide on adding, deleting, editing, and copying sewing program steps.
Procedure for setting and configuring memory switches.
Safety and operational notes to follow before starting to sew.
Safety guidelines and steps for adding oil to the oil tank.
Safety notes and general advice before replacing machine parts.
Common problems encountered during sewing and their solutions.
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