Have removed the boss.
I did as advised on here and soaked it overnight in RP7.
Then I screwed the end nut on (to protect the thread) and held the the axle vertically and hammered down on the concrete.
The weight of the half roller acted like a hammer and contacted the boss squarely and slowly removed it.
Will post pics later tonight of it all disassembled
Last edited by Kempe; 26/03/11 08:53 AM.