Cobra 26 presser/walking foot marking up leather

[AtomicLeathers]

Hello sewing machine guru’s!

   I am having trouble with my brand new Cobra class 26 machine. When I sew with the machine, the pressure foot/walking foot press the leather hard and it makes a trail on the leather. It makes a beautiful stitch but right next to it, there is a presser foot/walking foot impression. 

    I have adjusted the “banana slide” on the back,  checked both my feet for any adjustment and there is none.

     Right now im sewing 2 , 8-9oz pieces of  Wickett and craig traditional harness in med brown and it marks it pretty darn good.

     I called the leather machine company and a guy told me to cut off the spring 5mm.  Just doesn't sound right that I need to cut anything, especially  since its brand new?

    Please help if anyone can with any ideas or input.  Thank you!!

[Tequila]

Watching

[Constabulary]

have you tried to reduced the foot pressure?

[AtomicLeathers]

4 minutes ago, Constabulary said:

have you tried to reduced the foot pressure?

How do I reduce the pressure of the foot?  There is the threaded rod and jam nut on top, I backed that all the way off, and under that is the spring they told me to cut off 5mm off

[Constabulary]

should be mentioned in the manual how to reduce foot pressure. That's a quite basic thing every sewing machine operator should know.

You need just enough foot pressure that the rising needle is not lifting up the material you want to sew. Thicker / more dense material with thicker needle and thicker thread require more foot pressure because of more friction between needle and material. But the thinner the material and the thinner the needle the less foot pressure you need.

EDIT:

Edited April 15, 2022 by Constabulary

[AtomicLeathers]

26 minutes ago, Constabulary said:

should be mentioned in the manual how to reduce foot pressure. That's a quite basic thing every sewing machine operator should know.

You need just enough foot pressure that the rising needle is not lifting up the material you want to sew. Thicker / more dense material with thicker needle and thicker thread require more foot pressure because of more friction between needle and material. But the thinner the material and the thinner the needle the less foot pressure you need.

EDIT:

Yeeeeeeep That is the adjuster I tried moving. It is backed off all the way

[Constabulary]

then you either try to find a lighter spring or cut down the existing spring

[AtomicLeathers]

6 minutes ago, Constabulary said:

then you either try to find a lighter spring or cut down the existing spring

Seems weird that I have to cut the spring already on a brand new machine? Shouldn’t there be enough adjustment on it straight from the factory. thats why im checking to see if im missing some other adjustment rather then cutting the brand new machine

[Wizcrafts]

Ask Cobra if they can mail out a softer spring, or one that is already cut down and polished on the ends. There are soft and hard pressure springs for many types of machines. Some may be meant for a different brand but may fit in yours.

[suzelle]

Good luck Atomic. Looks like you have gotten some great advice here. I don't have a machine like yours, but would like to have something like it someday.

I wanted to say what Wiz said, why not just ask for another spring. I realize sometimes have to break things in and all that, but this spring thing is pretty fundamental. I have taken flattened springs out of old machines and stretched them out so they work again, and even trimmed one up before. But those were old machines. I did a little search and found a youtube video that went over the Foot Tension on the Cowboy  CB4500 machine and different things you could try. Good luck to you! Please let us know how you do!