To Next PageTo Next PageHow to improve the thread tightening quality on my SunStar SPS/B-1507 Sewing Machine?
If you're experiencing poor thread tightening with your SunStar Sewing Machine, it might be due to weak tension in either the upper or lower thread; try adjusting the tension of the upper and under thread. Also, the timing between the needle and shuttle might be improper; in this case readjust the timing of needle and shuttle.
What causes ineffective sense of upper thread on SunStar Sewing Machine?
If your SunStar Sewing Machine isn't sensing the upper thread effectively, it might be due to a bad connection between the take-up lever spring and detecting plate. Clean these parts and adjust the tension of the take-up lever spring and connecting condition of detecting plate. Another cause may be a bad connection of the wire with the thread sensor plate, so reconnect the wire with thread sensor plate.
Why is the thread cutting on my SunStar SPS/B-1507 Sewing Machine?
If the thread is cutting while using your SunStar Sewing Machine, several factors could be at play. Ensure the thread is inserted correctly and the needle is properly installed, paying attention to its height and direction. A damaged needle, indicated by bending, cracks, or abrasion, should be replaced. Adjust excessive tension in both the upper and lower threads, as well as the take-up lever spring. Finally, inspect the shuttle surface spring for cracks, and replace it if necessary.
Why is my SunStar Sewing Machine skipping stitches?
If your SunStar Sewing Machine is skipping stitches, it could be due to several reasons. A bent or improperly sized needle should be replaced. Ensure the needle is correctly installed. The timing between the needle and shuttle may be off, requiring readjustment. Also, a large interval between the needle groove and shuttle point can cause this issue, so readjust the timing. Finally, excessive tension and stroke of the take-up lever spring might be the cause, requiring adjustment.
What to do if the needle is bent on my SunStar Sewing Machine?
If the needle of your SunStar Sewing Machine is bent, there are a few possible reasons. The needle may be damaged with bending, cracks, or abrasion, in which case you should exchange it. Also, check that the needle is installed properly. Finally, the needle may be contacting the shuttle, so you should adjust the distance between them.
What to do if I get an error on operation or drive of my SunStar SPS/B-1507 Sewing Machine?
If you're encountering an error during the operation of your SunStar Sewing Machine, it could be due to a few reasons. Check if the belt tension is loose or damaged, and adjust or replace it as needed. Also, examine the fuse for the main power or circuit in the controller box for any shortages, and replace if necessary. Finally, ensure the feed bracket is within its normal limits; move it back into position if it has deviated.
General| Brand | SunStar |
|---|---|
| Model | SPS/B-1507 SERIES |
| Category | Sewing Machine |
| Language | English |
Safe operating principles and precautions for the sewing machine.
Identification and function of safety devices on the machine.
Procedure for oiling the machine before operation.
Detailed guide for threading the upper thread.
How to adjust thread tension for optimal sewing.
Correcting the needle bar height for proper sewing.
Aligning the needle and shuttle for optimal stitch formation.
Setting the timing and backlash for shaft gears.
Adjusting spring tension related to the shuttle mechanism.
Setting the correct vertical position of the feed plate.
Adjusting presser foot components for proper material handling.
Adjusting belt tensions for the X and Y axis movement.
Procedures for adjusting the thread trimming mechanism.
Setting the tension for the main thread feed.
Setting the home or origin position for the X and Y axes.
Operating the sewing machine using the foot pedal controls.
