I'm scratching my head pretty hard on this because it's been awhile since I've messed with the hydraulics on my 630, which is the same as a 620. Seems to me if the hydraulic lever for the remotes is in the forward position the three point won't go up. If the remote hydraulic is set for single acting the remote lever will not kick back when pushed forward and will stay there until you return it to neutral. When it's in neutral or in the raise (back) position the three point will go up. I'm thinking out loud here again, but I wonder if there's a connection between the two. Is your remote cylinder lever in the forward position? I haven't been into the valving for the three point for a good thirty years and I remember very little about it. Jim
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