Patcher Will Not Advance The Material - Help?

[Wizcrafts]

You can adjust the raised position of the tension release plate via the nuts over and under the back side of the plate. These (5/8") nuts are on a threaded shaft that is behind the presser foot spring. With the lift lever and presser foot fully raised, loosen the top nut, then raise the one under the plate until the hollowed tension spring cup raises off the tension disk a smidgen. Then tighten the upper nut to secure this position.

Once properly adjusted, when you lift the presser foot lever all the way, the tension should be removed from the upper tension disks, allowing the thread to move freely.

Edited July 17, 2012 by Wizcrafts

[CustomDoug]

You can adjust the raised position of the tension release plate via the nuts over and under the back side of the plate. These (5/8") nuts are on a threaded shaft that is behind the presser foot spring. With the lift lever and presser foot fully raised, loosen the top nut, then raise the one under the plate until the hollowed tension spring cup raises off the tension disk a smidgen. Then tighten the upper nut to secure this position.

Once properly adjusted, when you lift the presser foot lever all the way, the tension should be removed from the upper tension disks, allowing the thread to move freely.

I'm glad you explained that because I figured those nuts would need to be adjusted but was afraid that doing so might throw something else out of whack. Thanks as always!

Now, just two things: The screw at the bottom of the long thin verticle spring (at the back of the head), what does it control? And... would moving the follower (the piece to the left of L/M/H adjustment) down a little more help get longer stitches?

[Wizcrafts]

I'm glad you explained that because I figured those nuts would need to be adjusted but was afraid that doing so might throw something else out of whack. Thanks as always!

Now, just two things: The screw at the bottom of the long thin verticle spring (at the back of the head), what does it control? And... would moving the follower (the piece to the left of L/M/H adjustment) down a little more help get longer stitches?

The screw at the bottom of the spring stops the spring from falling off the shaft and keeps it centered in the vertical slot in the lower section. It is both a stop screw and guide. If that screw is removed, the pressure spring will not exert any pressure on the presser foot.

Adjust the wing nut height brackets for maximum foot lift as the machine sews. Do not waste time trying to adjust it with the foot lifted and locked in the up position.

For the longest stitches, at any given thickness, lower the stitch regulator all the way down, with the foot lifted and locked in the up position. Since this is the highest vertical position the foot can achieve, setting the stitch length puck until it is just touching the fully raised foot ensures that you will get all the stitch length your machine's possibly worn parts can give.

If, after you set the foot lift to maximum during stitching, and the stitch length regulator is all the way down (to a raised foot), the best you can get is less than 6 stitches per inch, into 8 ounces of leather, consider the feed mechanism to be shot. Also, there must be spring pressure on the foot to cause it to pull the leather back to form stitches. Too little foot pressure causes a failure to feed.

A properly adjusted patcher, with a tight feed mechanism should give 5 stitches per inch into 8 ounces of leather. My machine has very tight clearances and gets 5 per inch into a quarter inch of leather.

This does not apply to the original 29-3 or 29-4 models, or the early 29k models with a leaf springs. I am referring to the 29Ks that have a coil spring for the foot pressure. The old leaf spring models have a different method of lifting the foot during sewing. However, the stitch length adjuster is the same on all models.

[CustomDoug]

The screw at the bottom of the spring.... It is both a stop screw and guide. If that screw is removed, the pressure spring will not exert any pressure on the presser foot.

~Beating a dead horse I know, but - the slot of my screw is a little wornout looking so the previous own obviously did some removing or loosening of that screw. So besides just removal is there adjustment that can be made to it? If so, would it only affect the amount of pressure exerted on the leather while the foot is down and the lifter is down?

Do not waste time trying to adjust it with the foot lifted and locked in the up position.

~Regarding the L/M/H butterfly, that was the mistake I was originally making.

Also, there must be spring pressure on the foot to cause it to pull the leather back to form stitches. Too little foot pressure causes a failure to feed.

A properly adjusted patcher, with a tight feed mechanism should give 5 stitches per inch into 8 ounces of leather.

~This is why I'm asking about that chewed up screw on the bottom of the long thin vertical spring that you're saying affects pressure on the presser foot. Could it be that the previous owner has adjusted the pressure so that it's not got enough pressure to form longer stitches (it's 5 stitch minimum)?

Edited July 17, 2012 by CustomDoug

[Wizcrafts]

~Beating a dead horse I know, but - the slot of my screw is a little wornout looking so the previous own obviously did some removing or loosening of that screw. So besides just removal is there adjustment that can be made to it? If so, would it only affect the amount of pressure exerted on the leather while the foot is down and the lifter is down?

~Regarding the L/M/H butterfly, that was the mistake I was originally making.

~This is why I'm asking about that chewed up screw on the bottom of the long thin vertical spring that you're saying affects pressure on the presser foot. Could it be that the previous owner has adjusted the pressure so that it's not got enough pressure to form longer stitches (it's 5 stitch minimum)?

Doug;

The presser foot pressure spring adjuster is on top of the spring shaft and the plate that eventually lifts the tension disk cup. There should be a round thumb adjuster on top that you can turn one way or the tudder

[CustomDoug]

Doug;

The presser foot pressure spring adjuster is on top of the spring shaft and the plate that eventually lifts the tension disk cup. There should be a round thumb adjuster on top that you can turn one way or the tudder

Yes I'm perfectly aware of this but that does not address my question about whether there's any adjustment for the small screw at the bottom of the long vertical spring. Nevermind, but thanks anyway.

[Wizcrafts]

Yes I'm perfectly aware of this but that does not address my question about whether there's any adjustment for the small screw at the bottom of the long vertical spring. Nevermind, but thanks anyway.

As far as I am aware, it is just a stop screw and guide for the pressure spring and has no adjustment value.