How to Troubleshoot a White Speedylock Serger
- 1). Check the serger thread and ensure all cones are securely placed on the spindles. If a thread is broken, you will need to rethread the serger. Snip all the threads at the top of the machine and pull to remove from the bottom. Rethread the serger as directed in the serger's manual, by threading the lower looper first, then the upper looper. If it's a four-thread serger, thread the right needle first followed by the left needle. Turn the handwheel toward you to see if any thread is caught up. Test sew a chain, making sure all threads are correctly threaded through the serger.
- 2). Replace any bent, dull, or damaged needles. Needles that have blunt edges or that are bent have a tendency to break easily or cause skipped stitches. To change a serger needle, shut the power off and turn the handwheel toward you until the needles are raised. Using the hexagon wrench in the accessory kit, loosen the needle clamp to remove the needles. Install new needles correctly by pressing them all the way up with the flat side toward the back. Tighten down the screw to hold the needles firmly in place.
- 3). Correct the tension when the stitching becomes irregular or the seams begin to pucker up. You also may need to adjust the tension when serging on different fabrics. Each thread will have its own tension. When sewing a fabric sample, identify which thread is puckering or which one is not setting on the seams correctly. Adjust each thread as needed to achieve a smooth chain on the end of the seam.