TubeNet

Is there a slide on the 4th valve of the Jupiter 482? I just got a new 482 and it isn't clear to me if the tubing off the 4th valve is supposed to move. It looks like it might be a slide, but it doesn't move, and I don't want to damage anything. I looked on the Jupiter web site but couldn't find an answer.
Thanks in advance...

I would HAVE to assume there is a slide there.

Too bad I moved away from CO. My section mate had one of these horns. I never actually played it, nor did I ever attempt to pull his 4th slide...

Thanks.

The tuba arrived today via FedEx. I played it tonight for the 1st time. I figured out the 4th valve tuning slide and the main tuning slide.

The 1st and 3rd slides (if it has slides?) are stuck. The slides appear to be on the top of the valve branches, but they are all the way in (if they are the slides) and will not move. I need help, an explanation or diagram, so that before I attempt to un-stick the slides I know I'm really trying to move a slide. I'm not familiar with this tuba, it's new, so I'm trying to be careful...sorry if this seems dumb.
Thanks in advance - hald

Thanks for everyones help. I was able to get the slides unstuck. The only remaining issue is a sticky 4th valve. I'll search the forum before I post...Thanks again.
-hald