That was nice of them to send that.Perko sent me the rubber plug with tether only. Somehow i need to remove the upper black collar and insert new tether. It's been cold out so i haven't really invested much time in looking at it. thanks
That was nice of them to send that.
It appears like on the bottom side of the base there are two screws that should come off. By removing the screws, one would think this should allow you to disassemble the base unit.
You can just see the screws in the first and last photos in the ebay link if you zoom in. Hope this helps, let us know if this works out or not and good luck.
Perko Pole Light Mounting Base Telescoping 1059 T00 DP | eBay