In mast furler help?

[Swift Drift]

Trying to understand/troubleshoot my in mast furler. After raising my sail, I noticed the extrusion tube slid up out of the furling base a few inches. Although I was able to get it back down, I’m suspicious that it’s not supposed to move independent of the base. In the attached photo I identified the joint with a red arrow.
There appears to be a set screw/bolt (identified by green arrow) which I was unable to break free due to the dissimilar metals (stainless bolt/aluminum furler).
Any perspective would be appreciated as I’m in the islands cruising without many resources available to troubleshoot and am nervous about the unit coming apart and causing a myriad of problems.
I’m unsure what make of furler it is but I’m thinking a zspar or a Hood? If I was able to identify the unit and get my hands on a schematic that would likely answer some questions.

Boat is a 2002 Jeanneau 52.2.

[Swift Drift]

I’m now fairly confident the furler is a Sparcraft. Now just trying to find out if the extrusion should rise out of the base or not.

[daletournier]

I have a sparcraft, the extrusion should not rise. There's 3 screws that hold it in place.

[daletournier]

Looking at the photo it's clear that the screw isn't in far enough, maybe not even lined up with the hole anymore.

Put some heat on it and work it out, you should be able to line it up with the hole and put it back in properly.

They are a simple system.

[Swift Drift]

Thanks Dale. I’ll hit the bolt with some heat, penetrating oil, and an impact gun. Weird (lucky?) that it’s been like that for at least 600 ocean miles and hasn’t been an issue.
Notice you have a Catalina 470... I have some close friends with a 470. Nice boats, they love theirs.