How did you figure out how to "set the pressure to spec " for the modulator?

What or where can you find that spec?

I know it is at 2000 rpm and the pressure port on the transmission (wherever that is).

Any help?

(I am interested in doing it for a 300SDL - 87, if you have a copy of that spec).

thanks

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84 300TD - 235k - Farbe "Surfblau" bought at 213k
87 300SDL - 131k - Farbe "PimpGold" bought at 115k
00 Klepper Faltboot Expedition Double