Adjust Needle Bar Height On Your Sewing Machine.

How do you adjust the needle bar height on your sewing machine?

This is an important sewing machine repair.  Needle bar height is critical and must be adjusted properly for your sewing machine to function properly.

How do you adjust the needle bar height on your sewing machine?

Look at your sewing machine as you read through the following observations. You may want to remove the needle bar cover to see better.  Your machine may or may no allow  you to do so conveniently.  You may also want to remove the screws holding your needle plate in place.

Now observe, as you take hold of the hand wheel with your right hand.   Always turn toward you.  As you turn the hand wheel, a shaft across the upper part of the machine turns. In turn a set of short pivoting offset levers work together to produce an up and down motion. See the needle bar raise and lower.  If the needle bar height is not properly adjusted, it will not work.

How do you adjust the needle bar height on your sewing machine?

If you look closely, you can see the needle bar with a sleeve around it. It is held in place by a set screw. This is where you will adjust the needle bar height.  This is like a hand extended from an arm.  The precise position of the hand is set on the bar.  It determines how far down the needle with go and how far up too. This needle bar height positioning is crucial.  Even a fraction of an inch too low, and the needle will collide with the bobbin carrier.  A slight bit too high, and no stitch will form.  This sewing machine repair is vital.  Adjust the needle bar height properly.

How do you adjust the needle bar height on your sewing machine?

Closely examine the needle bar for two slash markings.  These are guides to identify the recommended setting. To adjust the needle bar height, raise the needle bar to its highest position.  Loosen the set screw.  Slide the bar down until the slash mark aligns with the casing appropriately. Roll the needle bar to its lowest setting. The needle bar slash mark should be just visible above the casing.  Depending on the model, this sewing machine repair may require slight variations.  The goal is to properly adjust the needle bar height.

How do you adjust the needle bar height on your sewing machine?

Another way to adjust the height of the needle bar is to lower the needle to its lowest position. Raise the bar until the point of the hook aligns with the needle within the needle scarf.  This sewing machine repair technique works best on oscillating hook sewing machines.   It can also be done  on other sewing machines.

Loosen the set screw in the needle bar.  Adjust the bar up or down as needed. Test to make sure the needle bar does not strike anything in its lowest or highest swing. Also make sure the point of the hook moves behind the needle in proper time just above the eye of the needle.

How do you adjust the needle bar height on your sewing machine?

Notice the position of the needle as it penetrates the needle plate. When the needle lowers, it should slide through the center of the needle plate centered back and front. The bar must also allow the needle to slide. It moves below the needle plate.  It slides in front of the hook just a paper thickness away from touching and no more. Some models vary slightly, but it is essential that the needle bar be properly positioned.  Therefore, check the timing.  Is it distorted with this standard setting. Access a service manual for the required setting on the specific model. 

How do you adjust the needle bar height on your sewing machine?

Notice the needle bar moves though a vertical sleeve. Commonly this sleeve controls the forward and backward positioning of the needle bar. The needle falls below the needle plate.  The needle must be almost touching the hook as it moves behind. If it touches, you will hear a little ping indicating that it is too close. If, however, the distance between the needle and hook are too much, the hook will fail to pick up the thread.  No stitch will form. A set screw on the excentric that holds the needle bar controls the hook needle clearance.

How To Adjust The Needle Bar Height On Your Sewing Machine.