It is a two man job for the way I do it. I do it by removing the cog from the drive shaft for the cylinder cutter and use a nut that is welded to a piece of steel rod. The rod goes into the chuck of a powerful drill - a cheapie will not do...need something with some real balls...and the nut goes on the the thead of the shaft.
The drill is then run which spins the cylinder in the reverse direction. While it is spinning, lapping compund it applied along the length of the cylinder with an old paint brush. Because the grit closes the gap between the cylinder and bed knife, this loads up the drill and is why you need a decent drill, otherwise it won't spin and/or will burn out.
It only takes a couple of minutes to do - and more and you are just wasting metal. You should end up with a decent clean endge and face on the cylinder's blades. It is then just rinsed of with water to remove the remaining lapping compound.
The whole process from removing the drive cover to putting it back on takes ~10-15mins.
I am probably going to make up a new bit that uses a socket that just fits over the drive cog nut...saves stuffing around pulling it off.
Ben.
