609 is quite an old machine. You can buy a 609 manual online for 35 Euro but the usual place for kity downloads only has the later models. http://www.boiteamanuels.com/noticemanu ... D34kzw4jae
However Kity manuals are not very useful and not worth paying for in my experience.
The mechanics of the saws are pretty simple and add to the fact that spares for the older machines are like hens teeth you are possibly best off fixing what you have got and making new parts as needed
There is another UK forum which has collections of links to manuals but the politics here on UKW mean that providing a link seems to cause all sorts of upset. However they don't have a 609 manual but there is a 618 which might be similar enough for you.