I am new to Zetor and just purchased a 3340 that I am fixng up. I love it so far, very pleased with what I have for the money. Most things I have been able to take care of except for one thing. The PTO/hydraulic shiftier won't go into the hydraulic only position (full forward) unless I remove the floor plate. If I do, the shifter can move far enough forward to disengage the PTO leaving the hydraulic pump running. I read some here and checked the shift handle to shaft pinned connection on the outside of the case. It has had the pin replaced and it is all tight. So the problem must be inside the gear box, possibly an adjustment of the PTO and/or hydraulic linkage? Any thoughts? Is it easy to pop the top of the gear box and fix? One option is cut a slot in the cover so the lever can move further forward. Thanks in advance!