What causes upper thread run out on my Brother HE-800A Sewing Machine?
If the upper thread is running out on your Brother Sewing Machine, try adjusting the installation position of the upper thread trimmer assembly by moving the setting plate assembly. You can also retard the tension release timing using parameter number 63.
What to do if my Brother HE-800A is skipping stitches?
Skipped stitches can be caused by several factors. First, make sure the needle is correctly installed with the notched part facing forward and fully inserted. Also, try loosening the thread take-up spring tension or shortening the stroke to prevent double hooking. Increasing the work clamp pressure may also help. Finally, the needle and hook timing may need adjustment.
How to fix skipped stitches on Brother Sewing Machine?
To fix skipped stitches, first, check the needle. Make sure it is attached correctly with the notched part facing forward and that it's the right size for the thread and material. Also, check the thread take-up spring tension and adjust it to prevent double hooking. Increase the work clamp pressure, ensuring the adjustment screw is tightened beyond the standard 30 mm. Finally, inspect the rotary hook, polishing or replacing it if necessary, and adjust the needle and hook timing, maintaining a gap of 0.01 - 0.08 mm between the needle and rotary hook.
What to do if the needle breaks on my Brother HE-800A?
If the needle is breaking, ensure it is fully inserted into the needle bar with the notched part facing forward. Also, the needle and hook timing may need adjustment. Adjust the needle bar height to “1” and the needle bar lift amount to “2” on the gauge. The gap between the needle and rotary hook should be 0.01 - 0.08 mm. Ensure the rotary hook point does not strike the needle during zigzag motion.
How to troubleshoot uneven seams (3) on my Brother HE-800A?
To address uneven seams on your Brother Sewing Machine, adjust the timing, so the upper thread scissors gradually start opening when the feed mechanism moves about 1.5 - 2.5 mm. Also, loosen the screw to decrease thread take-up amount, ensuring the upper thread doesn't pull out of the scissors assembly at the sewing start.
What to do if the cutter does not return on my Brother HE-800A?
If the cutter on your Brother Sewing Machine does not return, sharpen or replace the blade if it is worn or chipped. If the cutter sticks in the material, replace it with the special needle plate (optional).
What to do if the Brother HE-800A Sewing Machine cutter does not return?
If the cutter blade is worn or chipped, sharpen it or replace it.
Why is the upper thread running out on my Brother HE-800A Sewing Machine?
Upper thread run out can be caused by the upper thread trimmer assembly or the tension release timing. Adjust the installation position of the upper thread trimmer assembly by moving the setting plate assembly. You can also use parameter number 63 to retard the tension release timing.
Why is the needle breaking on my Brother Sewing Machine?
If your Brother Sewing Machine needle is breaking, ensure you insert the needle fully into the needle bar with the notched part facing forward. Also, the needle and hook timing may need adjustment.
What causes uneven seams on a Brother HE-800A Sewing Machine (lower thread)?
Uneven seams may result from issues with the lower thread retainer or clamp. Adjust the lower thread retaining amount. Ensure the lower thread clamp plate opens when the feed mechanism moves 6 – 7 mm. If the lower thread clamp and lower thread presser are bent, replace them and check that the screws are tightened.
General| Brand | Brother |
|---|---|
| Model | HE-800A |
| Category | Sewing Machine |
| Language | English |
Explains safety indications and symbols used in the manual and on the machine.
Provides guidelines for safe and proper installation of the sewing machine.
Important notes and precautions before performing machine adjustments.
Guides for adjusting the upper thread trimming mechanism.
Guides for adjusting the lower thread trimming mechanism.
Troubleshooting steps for upper thread breakage issues.
Safety precautions when working with the control box and electrical components.
List of error codes, their causes, and remedies.
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