Mine is getting seized. Lubricating it seems to work only for a few weeks before it seizes up again. I'm worried it will one day break. So I know with these I can pop the lock mech out easy enough but I can't find a replacement cap anyway. Any suggestions where to find, or perhaps repair kits available?

 

Old thread, though I just want to say that I got mine on ebay.

 

Thank you. I managed to get mine working my soaking multiple times in contact cleaner & WD40. Left it for about a week with brushing and moving the parts each day. I also replaced an o-ring seal which was pretty mangled and I think the root cause of the problem. Now works well again. I will keep looking on Ebay though as a replacement would be nice.