curious about valve lash setting/check

all of the help so far is very much appreciated, just want you all to know that. :)
heading out to the garage to check/remedy this situation.
one question: as long as everything is put back in order on the shaft, do I need to lubricate anything? and thanks to all of you for the right torque for the shaft bolts (Rusty/Pishta/pt70), that's another great catch, thank you!