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How to Change Singer Serger Blades

The Singer company offers a variety of serger sewing machines with a range of features and functions. There are models specifically designed for the serging beginner, more intricate models for the intermediate household user and professional-level machines that do nearly everything automatically. No matter how easy or advanced the serger is, however, one thing remains true about each of them: the cutting blade will eventually become dull and will need to be replaced with a sharp blade.

Turn off your serger and disconnect the plug from the wall outlet. Open the looper cover on the bottom right of your serger. Consult your owner’s manual to ensure you have the correct model of serger blade for your serger.

Turn the knob that controls the blade so that the blade is resting in its upright, “unused” position. Ensure it is locked in place and the blade is resting firmly in the serger blade groove located directly under the blade.

Unscrew the blade screw, located on the lower portion of the blade. Consult your owner’s manual to determine the type of screwdriver you need, and turn the screw to the left to loosen it. Continue turning until the screw is completely removed from the blade. Set the screw aside in a safe place.

Hold the top of the blade with one hand and gently work the blade back and forth until it readily comes out of the groove. Remove the blade and throw it away. Place the new blade in the groove and work it back and forth until it rests firmly in the groove and the screw hole in the blade lies directly over the screw hole in the groove.

Place the screw in the screw hole and turn it to the right with the screwdriver. Continue turning to the right until the screw won’t turn any longer. Test to make sure the blade is in the proper position by returning the blade to the working position with the knob. Sew a line of test stitches to ensure the blade cuts as it should.

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