Parmiter Disc harrows

[jondear]

Hi I a set of blue discs I've found in the nettles .I know the last time they were used a bearing was gone it's the sealed type I think .
They are not that worn .Just wondering if anyone has changed such a thing how they went about it and if bearings are still available ..
Thanks

 

[Mickstup]

Take gang off, take big nut off end of shaft, remove shaft, replace bearing, rebuild. jobs a good un, oh, you will need gas, lots of it, and a big sledgehammer as well. Bearings are available.