New to this forum but I've had an old Smithy 3 in 1 in the garage for about two years now. Just really starting to get enough practice and tooling to be effective at most projects. The most recent of which is getting an old Dayton 4x6 bandsaw back in working condition. It had a broken pillow block for the main arm's pivot. I managed to get it's table clamped onto the smithy and milled off the broken block. I've milled out another block which just needs drilling and tapping before it can be bolted to the table. While making this block I ran into my first real problem with the Smithy. The pulley that drives the mill head came loose. It appears that it has to slide up and down the shaft driving it depending on the height of the mill head. There is a single keyway on the shaft but I don't have a key. The keyed portion at the bottom of the pulley is not very substantial, about 1/2" tall and allows the 3"+ pulley to wobble erraticly when I did manage to get it wedged back on with AL shims. It looks like somebody before me may have tried to patch it. Can anybody shed light on how this pulley is supposed to ride on the shaft? For clarity this isn't the milling spindle but the drive shaft coming up from the gearbox.