Friend of mine has an 80 something green Duetz. The hydros on the 3 point work great however when he was moving hay bales the front bucket just dropped to the ground. Checked at the remote. ... seems no fluid is present. Any idea what causes this issue and what repairs may be needed? I have expierence on hydralics but need a schematic and am unable to locate one oneline. As for the model of tractor. ... your guess is as good as mine as there is no plates anywhere to indicate uear orodel or even the engine. Its big. Its green. It says duetz on the side. Any help would be greatly appreciated.