MF65 hydraulic pump control valve

[Ausmac]

Hi all, I have just resealed my hydraulic pump, and the control valve has me stumped. I didn’t pay as much attention to it as I should have. I have a new control valve and it comes with 3 sealing washers, but watching a video on a rebuild the girl in the clip says you only need 1 washer? I can’t fit my guide and spacer washer in with the 3 sealing washers but if they weren’t required why would they give you 3?