Cowboy 4500 / Cobra Class 4 Questions

[JimTimber]

3 hours ago, RockyAussie said:

Would it be too much trouble for a pic of this Steve. It sounds like the tension discs would be nearly fully surrounded by my understanding.

I'm pretty sure this is demonstrated in the Cobra videos on youtube.  It's interesting to see the variations on threading between the manufacturers (distributors, really) for what's virtually identical equipment.

When I use the guide rod on my 441, I'm not using more than one hole of the 4.  It's literally just there to position the thread above the working parts of the machine below, because the table my machine came with has a corner mounted thread holder and it's a long run from the guide on it to the upper thread guide on the lube pot.

[Uwe]

 

3 hours ago, RockyAussie said:

sure that when we thread the machine, we go through the first thread guide then through the tension discs and back to the thread guide,

I'm picturing this (on my Cowboy 4500):

Edited March 17, 2017 by Uwe

[RockyAussie]

31 minutes ago, Uwe said:

 

I'm picturing this (on my Cowboy 4500):

Thanks Uwe and Jim Timber. I have recently bought a 441 with a guide rod that is mounted along with the bobbin tension discs. What threw me here is that my understanding of doing the tension on this machine is to tighten the second tension 1 turn to 1/2 half turn at the primary tension. As Uwe kindly has shown in the pic above I believe the surface contact area on the thread would be more than if going straight down to the secondary tension. Therefore has that procedure of tightening the 2 got to be done any differently?  Regards Brian

[JimTimber]

I don't go back through that first thread guide at the top tension disk, but I run it through the guide at the second disk before wrapping it twice and then coming out the guide again to then go to the take up spring (I'm pretty sure that's the Cowboy directions).

The second tension disk is like a windlass, so having more complete contact seems like it should make it respond better to adjustments (less slippage).