I have an Acme Supreme Juicerator with a worn out circular footing. How do I go about doing that? There are 4 screws and I've already been scraping out the deteriorated footing.

if on a lathe it is a acme screw thread

This is free motion quilting. There are a ton of web sites and videos available. You'll need a darning or free motion quilting foot for your machine. Drop the feed dogs. If you are certain you want to do free motion quilting, a Supreme Slider helps you move the fabric.
https://www.amazon.com/Supreme-Slider-Motion-Machine-Quilting/dp/B007XGITA2

Learn How to Free Motion Quilt Stippling

How to Free Motion Quilt on Regular Sewing Machine

Free Motion Quilting for Beginners 10 Tips

Free Motion Quilting Beginner Tutorial 1 of 4

You need an embroidery foot, that doesn't lay on the fabric like a normal foot and allows free motion of the fabric. If you are using one, be sure it is the appropriate foot for your machine and that you have pushed the appropriate button or place on your machine so that the machine will place the foot in the correct position.

You will need a darning foot or free motion quilting foot for your machine (these feet are shorter than the regular feet which allows space between the foot and the needle plate to manually manipulate your fabric). Then drop the feed dogs and, if your machine does not have that capability, there should be a cover plate included with your machine that snaps over the feed dogs. Install a brand new needle in your machine, set it for a straight stitch, and test the stitch. Sometimes, the upper tension needs to be loosened a bit so the bobbin thread does not poke through the top of the fabric.

Then...practice, practice, practice...

How to Free Motion Quilt on Regular Sewing Machine

Free Motion Quilting Beginner Tutorial 1 of 4

FWIW, I've found it helpful to use a "Supreme Slider" on the base of my machine. It is slick and allows the fabric to move easily. Special gloves are helpful too because your hand will become dry and begin to slip on the fabric. Using cheap rubber gardening gloves works for some people.

supreme slider Google Search

quilt gloves Google Search

usually a gathering foot or ruffler fits on like one would fit an old style foot. Unscrew the thumb screw that holds the snap on foot holder.... and place your foot making sure the needle holder thumb screw holds the lever on the other side. And tighten the thumb screw to hold on the foot.

Good luck.

Make sure that you have a darning foot that is compatible with your machine. I believe that the 7422 is a low shank foot; the appropriate daning foot is http://www.sewingpartsonline.com/darning-foot-singer-006016008.aspx . Lift the presser foot and remove the foot currently on the machine, including the ankle. (Loosen the screw on the left side of the ankle.)

Place the darning plate over the regular plate and feed dogs. The pins should lock into the spots on the machine.

Place the U-shaped opening of the darning foot over the screw that you loosened previously. Then tighten the screw to hold the foot on the machine.

Lower the presser foot onto your fabric. Set your stitch length. Lower the lever on the right side of the darning foot and hold onto your top thread (assuming the needle and bobbin thread are already threaded.) Now sew.

I hope this helps.

Cindy Wells

Ideally you want a foot that looks like this with a very small hole where the needle goes down, to maximise the pressure onto the fabric. Just don't move the stitch setting to anything that swings the needle or you'll smash the needle onto the foot and risk damaging the machine.

But unless you are having issues with the fabric being pulled down into the feed dogs, the regular clear sewing foot should be fine for most work and is certainly easier to see what you are sewing.

A lot of quilters go for a 1/4" foot too which gives you consistent 1/4" seam widths when piecing quilts. There is a excellent website on sewing machine feet and their different purposes, link is
http://sewmamasew.com/blog2/2009/06/feet-feet-feet/ and she has great images of 1/4" foot in use along with others such as Open Toed or Roller foot.

If you are shopping for different machine feet, you may like to look at www.sewingpartsonline.com, great website with lots of different brands. Your machine would be classified as a "low Shank" machine I think; often you can buy a generic brand foot which will work on different brand machines once you are sure of the shank type.

Most sewers find that there will be one foot they prefer to use for much of their work depending on their projects. My all time fav is the Elna Teflon foot, a black teflon coated foot which works great on many different fabrics; I've worn the black off the bottom of two of them!!

Get some thread locking compound such as Loc-Tite Blue at a hardware, building supply or auto parts store. Paint a stripe of the stuff all around the screw threads over about 1/4" of the length of the screw away from the head. Let it set up according to directions. The screws should hold properly for several assembly/disassembly cycles. Re-apply as needed.

If the screw threads are too worn and sloppy to hold even with this, then you may need to replace the parts.

Hi. Here's how to attached the zipper foot.

To Attach the Zipper Foot
1. Loosen the large screw at the left of the presser bar and remove presser foot (You do not need to remove the screw).
2. Hook the prongs of the Zipper Foot around the presser bar from the back, and tighten the presser-bar screw.
3. If the raised edge (zipper or cording) is to the right of the needle, adjust the Zipper Foot by loosening the thumb screw at the back of the foot and sliding foot to the left of the needle. If the raised edge is to the left, slide foot to right.
4. With presser foot down, check its position by lowering needle into side notch, making sure it just clears the foot.
5. Tighten thumb screw to lock foot into position.
When raised edge is placed to right -- adjust foot to left of needle.
When raised edge is placed to left -- adjust foot to right of needle.

well particular on electrical problem foot control is a switch of motor that deliver speed varies on how you press the foot pedal it consist of circular thick plate carbon the old model and the new one electronically control of power ic,It depend on how this pedal was contro.Anyway besure the power is off or unplug the machine; this control was been connected in series connection to the motor which you can test if your foot pedal control is defective. Disconnect the line wire holding foot pedal from the terminal inside motor assembly.If your not qualified electrician don.t do this.Connect the two terminal wire that inside the machine where the motor mounted.This connection is supplying your motor in full speed,Declucth your machine from the handwheel so that the motor run only.Plug the machine and switcn but you must jug only if the motor run in couple second of course without the foot control this was disconnected already.So your foot control is defective vice versa if motor does not run without foot control motor is busted.
how to fix if foot contol is defective, in carbon type you must replcace the circular thick carbon.On Electronic control check the IC if this open or some capacitor and resistor are open,Replaced any pars that had been short circuited.If the motor is defective replaced the carbon brush mounted at two side of motor case,There is an opening port.The carbon brush has spring holding push this carbon brush to the brush armature of rotor.