A real Rats Nest! Help!

[kgg]

1 hour ago, YinTx said:

Well, been a long while since I posted here

The Techsew 2700 is a Juki LS-341 clone. I would use the engineering manuals or video's for the Juki LS-341 or LS-1341.

 

kgg

Edited January 23 by kgg

[YinTx]

46 minutes ago, kgg said:

The Techsew 2700 is a Juki LS-341 clone. I would use the engineering manuals or video's for the Juki LS-341 or LS-1341.

 

kgg

Thanks, I'll start down that route.  Technically it is a BGMC, but they are no longer around and have't been for some time now.  I tried contacting them when I first started this thread, but they were already awol then.

Edited January 23 by YinTx

[friquant]

 

On 1/22/2026 at 9:03 PM, YinTx said:

I have not found how you are supposed to adjust the feed dog timing (vertical timing is not quite right), so if anyone can point me in the right direction there I'd appreciate it.  

Remove the two endcaps from the left end of the cylinder bed. Turn the hand crank and you'll see the vertical feed cam in action. You can loosen the setscrews in it and rotate it to taste.

 

In terms of order of operations, you will want to adjust the vertical feed cam first. (Probably such that the feed dog is at its highest point when the needle is at bottom dead center.) Afterwards you would adjust the eccentric that moves the rock frame (such that the needle arrives at the throat plate at the same time as the inner toe)