Cobra class 4 reverse issues

[StoneBuiltKnives]

1 hour ago, CowboyBob said:

Have you tried increasing the foot pressure?

I did not but it's already leaving marks in my leather.

I have however  finally achieved some success with my sewing woes. I didn't realize I had lighter thread in the box of stuff I got with my machine. I dropped down to a 207 thread with the 25 needles and my breakage problems disappeared. Thank you for all the assistance. Now I can focus on learning to actually use the machine instead of troubleshooting.

[StoneBuiltKnives]

Finally!

[RockyAussie]

Looks good to me.

[StoneBuiltKnives]

7 hours ago, RockyAussie said:

Looks good to me.

Thank you!

[Doc Reaper]

I had a problem of thread breaking on 3 different machines (not the same make) and I was missing stitches. I checked to make sure it was threaded properly, the tension was slightly adjusted to make sure that wasn’t a problem. So I got to thinking about what would  fray the thread? 
 

i checked for burrs and sharp edges everywhere around the needle and plate areas, all was good. I eliminated everything but the needle! So I changed the needle , still using the same size - still the same problem, UGHH!

So I watched the operation of the needle closely, and the thread was not even, like it was cut by scissors, but even enough to be happening at one spot - the eye of the needle (where the thread goes thru). 
Not all at once but the thread was bunching on the feed side of the needle and the fibers of the thread kept popping one at a time! So I got a needle with a larger hole and my problem vanished!

needle size charts were made when materials for thread and needle were different. I ALWAYS go to the next size up in needles, it helps cut down on frustration!  I even made that comment to Cowboy Bob when I made an order about 3 weeks ago. 
So if you are fraying right at the needle, increase to the next needle size up 

Edited October 14, 2022 by Doc Reaper

[Wizcrafts]

4 hours ago, Doc Reaper said:

So I watched the operation of the needle closely, and the thread was not even, like it was cut by scissors, but even enough to be happening at one spot - the eye of the needle (where the thread goes thru). 
Not all at once but the thread was bunching on the feed side of the needle and the fibers of the thread kept popping one at a time! So I got a needle with a larger hole and my problem vanished!

The throw and tension of the check spring also affects the quality of the loop. A longer throw and tighter action can overcome the tendency of poorly bonded thread to unravel. Furthermore, if the unraveling is due to excessive twistiness in the spool, wrapping in the opposite direction around the top post may offest the twist problem and keep the loop at the needle intact.