Massey Ferguson 450S excavator, first attempt at start in 20+ years. (Part 1)

First attempt starting this 1973 MF 450S excavator i 20+ years. To start with, the engine was just a little stuck, but after several attempts with the starter and at the same time that we helped by pulling the fan and then it was loose, hooray! But unfortunately the diesel pump had stuck after the machine had been standing for so many years.