UX441N footlift handle extension for Juki TSC-441 (Cowboy 3200/3500/4500, Cobra Class 4, TechSew 5100, etc.)
The UX441N footlift handle extension allows you to offset the original handle so that it will not interfere with a swing-down edge guide.
Removing the existing handle from the shaft should be easy, just loosening two set screws and sliding the handle off the shaft.
Alas, sometimes it’s not that easy. Some manufacturers use Lock-Tite or similar superglue during the assembly process to make sure the handle doesn’t come loose - ever!
If your handle is screwed AND glued in place like on my Cowboy CB-3200, you may need to use Acetone (e.g. nail polish remover) or heat to break down the glue. Clean up the shaft and inside diameter of the handle collet that goes onto the shaft with acetone or fine sandpaper. Tolerances are tight and the parts are hardened. A bit of hard superglue in the wrong place can make it hard or impossible to get the handle collet onto the extension shaft.
I’ve had one report from a Cobra Class 4 owner who had to use a Dremel with a grinding bit to enlarge the inside of the handle collet a fraction of a millimeter to make it slide onto the extension shaft. Manufacturing tolerances vary between various manufacturers and sometimes the tolerances just add up the wrong way.
In general, most people manage just fine and can install the extension in a few minutes without running into difficulties.