Hi John,
I've used the same drawing for reference when stripping down the pump for my 6/1, It's a good start point. See this YouTube clip for the details of the 'jerk' type pump in action.
https://www.youtube.com/watch?v=7FgCi66BqUEIt's not a big thing to strip down, but make sure you get the rack in the correct position when you reassemble it. There may be a 'witness mark' on the rack as you look into the pump body from underneath, before you pull it all to bits see if you can relate the mark to the plungers position as you move it back and forwards, the first pump I stripped had one, and I only found it when I had all of the pieces in a shallow pan (Fray Bentos steak and kidney pie dishes are good!) of diesel.
If you have no mark, don't worry, study the video and in a couple of minuets you should be able to work it out.
When you refit the pump wind the adjusting bolt down to the bottom and gradually raise it until the timing is right, and rock the flywheel back and forth to make the pump 'spit'. Don't over do it or you'll crush the pump and bugger it.
There's loads of stuff on here, on the WOK, from 38ac - Butch - and I seem to remember something from Ed Dee using the inside tube from a ball point pen or something similar. Use the site search engine.
Clean the bits with injector cleaner and a soft cloth, don't use anything abrasive, don't scratch it with a screwdriver either!
Cheers
Stef