Cowboy CB4500 vs Adler 205

[Rob2613]

@Northmount That’s smart. I will try a few more things to see where the friction is located, if I don’t succeed I will post a video via Youtube. Thanks!

[Uwe]

Debugging friction is very hard to do sitting in front of the machine, let an alone remotely. Lift the feet up, so you’re not lifting feet against spring pressure when you’re turning the hand wheel. That spring pressure can feel like a tight spot. 

Make sure things are well oiled and clean. Old, dried oil residue can cause friction in unexpected places. In my hook timing video I show one step to align an eccentric bushing (at the 8:50 mark.) I had noticed this because it was suddenly causing a tight spot after I made an adjustment because the part was no longer properly aligned. I’m not saying your machine has this specific issue, but to show that a tiny adjustment can introduce a point of friction. When I work on a machine I’m generally very methodical, changing one thing at a time and checking if I’m introducing a tight spot.

Here’s a link to that hook timing video, for the benefit of others reading this topic:

 

[Rob2613]

@Uwe Thanks all for your help! I think I located the friction point. I have removed the inner and outer feet, and the machine runs as smoothy as can be expected of this beast of a machine. Looks like the previous owner installed some aftermarket feet that rubbed against eachother when moving the handwheel. I installed the original feet, but it looks like the outer feet don’t come down enough (at the lowest point there’s a small gap between the underside of these feet and the needle plate. Any video’s to set the inner and outer feet at the proper height? Pictures of the “problem”-feet and the height of the original outer feet…