How to disassemble Nirvana Furling Swivel?

Tom Whitehill
 

Hi,

I'm new to the forum and am excited to be part of the community.
Current Challenge: The Nirvana Mizzen manual furler Swivel on our 1984 Amel Sharki was frozen when we bought her.
I've extracted the swivel from the mast and am now looking for advice/guidance on how to disassemble it so that I can replace bearings, etc.
I've attached some pics of the Swivel for your reference.
Your ideas would be very much appreciated.

Thanks in advance for your help,
Tom

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