Nicolass......the translation (google) is not working very well. It (google translate) will have a very difficult time trying to translate "machine parts". You have not said where you are located. You can find manuals on "E-bay". As far as I know, the engine you listed for your machine never came standard in a Bobcat M-600/M-600D. If in fact you are truly talking about a M-600, I can only assume when you speak of a "vario motor" that you are talking about the 'variable speed sheave assembly'......if so, they cost about $600.00 USD here in the US. Again......"if" it is a 'variable speed' problem.....it is unlikely you need to buy an entire assembly. Very sorry.....it is difficult to help with the language barrier.