No idea what that process is - I have a few t430s and have replaced each of their fans at least once. It's just a case of remove the k/b and top bezel, maybe one of the speakers (can't remember, but it's just a single screw anyway) and then the heatsink/fan. No need to remove the screen and all that other stuff in the manual. takes 15 mins max.
https://thinkpads.com/support/hmm/hmm_pdf/t430_t430i_hmm_en_...
Granted, you don't have to remove the display at least.