Ransome Twentyfour 1975 clutch plate/assembly removal

Hi,

I recently bought a Ransome Twentyfour with the plan to refurbish it. My first plan was to get the engine working which is in progress and I have started it a few times.  However, I believe there is a problem with the governor and want to access the crankcase cover.  I have removed the engine from the mower and now need to remove the Clutch plate assembly

 from the crankshaft.  I have tried several pullers to no avail.

Can some please advise how I do this.

Many thanks Alan

Member : RobertAlan