Thomas S. Jan 18, 2015:

@ H-J Trost Aha, na dann vielleicht etwas allgemeiner, im Sinne einer Antriebseinheit:
"engine unit"

Oder spezieller: "irrigation engine (unit)" or "irrigation mover (unit)"

Könnte man analog mit der Übersetzung von "fire engine" vergleichen: Feuerwehrfahrzeug, Löschfahrzeug, Feuerlöschfahrzeug

"Regarding the engine unit/irrigation engine, attend the manufacturers instruction manual."

Hans-Jochen Trost Jan 18, 2015:

@Thomas S. No, not for irrigation equipment that is pulled/moved across a field. A vehicle used for that purpose would almost for sure be a tractor ("Trecker" in German) rather than any form of truck (which is a road vehicle).

Thomas S. Jan 17, 2015:

traction unit manufacturer or truck (unit) manufacturer

philgoddard Jan 15, 2015:

Or please or thank you :-)

philgoddard Jan 15, 2015:

Could we have the full context please. I'm guessing a Zugmaschine is a tractor here, but you haven't said what exactly you mean by an irrigation machine, what comes before and after this, and what thoughts you've had.