Does anyone know where the table diagrams referenced in the game manual are located?

They appear to be missing - looks like maybe a conversion error from HTML manual to PDF. Please let GOG support know!
In the meantime, I found the following in the HTML user's manual for the Pure Pinball PC demo. The numbers for the table elements seem to match up.

My many thanks to domgrief! The table diagrams you forwarded work as advertised. I have been wearing my little fingers to the bone playing the game since downloading them!
Any pinball players interested in honing playing techniques should give these games a try. The ball physics are nearly as good as Pro Pinball Timeshock and the games are small enough to play all the way through, unlike Pro Pinball which is just too big for casual fun.

Thanks for the tip! I was also looking for these.

A bit sloppy that they didn't notice the images missing.