Consew 227R messed up. Help

[Wizcrafts]

On 9/25/2023 at 10:59 PM, bkhansen182 said:

The needle comes down on the leather and it binds

This has happened to me and many others when we have either purposely, or inadvertently increased the lift ratio of the presser and alternating feet too high. Once you increase the alternating lift, and are actually sewing something, the internal crank shafts can make hard contact with the presser foot bar, jamming the action.

[Quade]

It's still probably binding at speed but you're just powering through it.  I might disconnect the belt and try turning the upper and lower shafts by hand and see if you feel the binding.  I'd take the needle out before doing this because disconnecting the belt disconnects the positioning between the feed dog position and needle position. 

I'd also take off the needle plate and try turning the machine over.  I've had two machines where the feed dog touched the needle plate and cause both noises and binding.  It depended on stitch length too. Smaller stitch lengths had no contact. 

I think it's unlikely to have anything to do with the belt.  

[bkhansen182]

On 10/4/2023 at 2:43 PM, Quade said:

It's still probably binding at speed but you're just powering through it.  I might disconnect the belt and try turning the upper and lower shafts by hand and see if you feel the binding.  I'd take the needle out before doing this because disconnecting the belt disconnects the positioning between the feed dog position and needle position. 

I'd also take off the needle plate and try turning the machine over.  I've had two machines where the feed dog touched the needle plate and cause both noises and binding.  It depended on stitch length too. Smaller stitch lengths had no contact. 

I think it's unlikely to have anything to do with the belt.  

I found where it’s binding.  Now to learn how to adjust it correctly.  A tan on the bobbin and I guess the “opener” are binding up

[Quade]

Yeah the gap is like a couple thickness of paper.  In my manual it didn't show actual thickness.   It's got to be wide enough to let whatever thicknesses of bobbin thread you're using slip through the gap. 

 

Edited October 12, 2023 by Quade

[bkhansen182]

On 10/12/2023 at 6:04 PM, Quade said:

Yeah the gap is like a couple thickness of paper.  In my manual it didn't show actual thickness.   It's got to be wide enough to let whatever thicknesses of bobbin thread you're using slip through the gap. 

 

So I took another video of what I’ve found and not sure if this is how it’s supposed to be or how to fix.  I can’t see where I can raise the thread separator to get clearance.

 

https://youtube.com/shorts/1-VqUMBC8HY?si=jhmBiOMdtqvQvOzd

[Gump]

Yes, that is the bobbin case opener. Put the bobbin case back in place and simply bend the opener up until it is level with the triangle tab on the bobbin case that it pushes to open the thread release, allowing the thread to pull around the bobbin. It looks like it only needs a mm or so of lift. To high and it can hit the cover.