Does anyone know what washers, nut, etc. are supposed to be on the end of the drive shaft that protrudes up through the roof of the base of the crane into the floor of the cab on top of the crane. I have the brass drive block on that shaft positioned so it fits into a square hole in the cab's floor and is just a hair above flush with the sheet metal floor of the cab without much vertical play or travel in the shaft, but what is supposed to go on the end of that shaft then to hold the the cab down on the shaft? A parts diagram would be great too, if you can scan in or provide one of those for this accessory. Thanks.
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