Hi Nemanja,
Jungheinrich EFG DF series started only from year 1994 before that it was EFG D or EFG DA. Please check the data plate again for correct details or picture of truck and control will be a big help in this case. i Can get wiring diagrams for you if i have correct model and year of manufacturing of the truck.
send it on adnan. khalid @ hotmail. com
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