C161 Failed bridal night

Although the entire locking nut had become very thin, because of its position, someone had to crawl along the entire shaft and then find a way to remove it at the very end of the shaft tunnel.

At the bottom of the new impeller was a tightly sealed wooden box containing a new locking nut and a matching disassembling tool.

I wanted to use this disassembling tool to disassemble the old nut