[Microwave] quarter inch hardline solder connectors

[Dave Brown]

Any one know if the centre pins in these can be removed?
I've just recovered a few connectors that had a stub of hardline (RG401) 
left in them -which I have removed- along with the solid centre 
conductor-but the centre pin seems to be firmly fixed in place in the teflon 
inside the connector. Maybe I'm not pushing hard enough to remove it? (Don't 
want to damage anything!)
If the centre pin IS fixed then I'm not sure how you are supposed to solder 
it when terminating hardline in the connector.  Sweat soldering the outer 
seems routine enough but its odd if you have to leave the centre pin in 
place and rely on an unseeen sweat solder connection of the whole 
thing -inner and outer all at once- to terminate.
DaveB, ZL3FJ