I have just removed the valve body from my 722.3.

On removal it was obvious that someone has been there before and not installed it correctly. There is also a spring sticking up out of the top of the valve body

I have another known good valve body out of a 722.4. This has all the same part numbers as the 722.3 valve body. I will be installing this back in the 722.3.
I removed many of the spring assemblies in the 722.4 body for checking and cleaning and they all are the same as the 722.3 version.

Thanks go to Ether for the link to that assembly diagram