Igor, have you looked at the deck levelling adjustment procedure, explained in the owner manual? They say that you have to level it fore-and-aft before you tackle the side-to-side adjustment. I'm not clear on whether the two inter-act, but they may. (The manual warns against getting the two fore-and-aft eccentrics turned in opposite directions.) There is a gross adjustment for fore-and-aft (slotted hanger hole) as well as the fine adjustment (eccentric bush).
(This is from the 3012TX manual - I'm guessing that is similar to 3010T but I could be wrong.)
