Not Murphy, but here's what I do. About twice a year I might adjust the cutting height. The shafts are good and greasy. First thing to do is slip a pair of disposable nitrile gloves on. I raise the deck and kill the engine. Then I insert a couple fingers between the tire and the upper part of the yoke so I can control the wheel/yoke asembly. Slip the pin out and carefully slide the assembly down and out. The grease holds whichever spacers are above the deck from slipping off. If I want to raise the deck, I take a spacer from the stack on top, slide it onto the shaft and slide the shaft back up through the sleeve on the deck. Align and spacers that may have shifted and put the pin or bolt back through the shaft.
An old deck has had the zerks broken off for years, so I occasionally squirt a little oil into the gap between the shaft and the sleeve. I found that without lube, the wheels sometimes fail to rotate and dig into the grass.