How to Fix a Squeaky Brother SC 9500 Computerized Sewing Machine

Flip the power switch on the back end of the sewing machine to "off."

For extra security, also unplug the power cord entirely.

Remove any thread spools from the machine and set aside.

Slide the bobbin plate lock switch to the right.

Remove the plate cover.

Remove the bobbin (if you have one loaded).

Locate the presser foot release switch on the back of the presser foot.

Squeeze the release switch gently.

Use a coin to twist the needle securing screw towards yourself (counterclockwise).

The needle will drop down when it's loose enough. Carefully set the needle aside.

Use a coin to unscrew the two screws holding the bobbin well cover plate in place.

Lift the well cover plate from the left edge first to remove it.

Pinch the black bobbin well and lift it up and away from the bobbin well tray to remove it.

Use a straw cleaner to remove dust and lint from the bobbin well tray.

You should also use the straw cleaner to clean between the metal teeth on the feed dogs.

Replace the bobbin well once all the dust is gone.

Make sure the black tab on the black bobbin well is placed right up against the metal spring in the bobbin well tray.

Replace the bobbin well plate cover and the two screws.

Turn the machine around to the back and unscrew the single screw on the far right edge.

Pinch the bottom edge of the faceplate and pull up to detach.

Use the straw cleaner to dust the top, bottom left, and inner right sides of the internal needle arm mechanism.

Locate the inner joint. It looks like a large round disk in the right side of the needle arm mechanism.

Apply two drops of sewing machine oil to this joint.

Turn the hand wheel on the end of your machine two full times clockwise to spread the oil around the joint.

Replace the faceplate.

Slot the top edge over the exposed inner mechanism first.

Lower the faceplate cover until it snaps into place at the bottom.

Replace the screw of the back of the machine until it is hand-tight.

Align the presser foot bar with the presser foot clip.

Pull down on the presser foot lever to push the clip into the bar. It will audibly snap into place.

Push the presser foot lever up to check that the presser foot is secure.

Lastly, carefully replace the needle.

Sewing machine needles have a round front and a flat back. Insert the needle with the flat back facing away from you.

Use a coin to tighten the needle screw clockwise until it is hand-tight.