Removal of starter motor from 20v

[whitehill]

I thought this would be easy?!
Having replaced my ignition contact block that was falling to bits I thought my starter problems were over.
I now get a healthy twelve volts on the starter solenoid but nothing else so maybe the solenoid is stuffed?
So I thought I might pull the starter out and clean in up and test it on the bench.
I found one 14 mm nut to undo at the bottom of the starter that I have loosened I then attempted to find another you would expect to find it diagonally opposite.
It is pretty hard to see around there but I can't find it. Am I missing a trick here?
Thanks in advance for the words of wisdom that will flow.
Regards
Rick Hayllar