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AC312H That doesn't like to back up


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What happened to me was that the set screw on the hydro lever got loose. There was enough bite to work sometimes, but enough slop that i couldn't get very good control of the speed. To stop, I had to move the lever to the opposite direction, then back to neutral.
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Can anyone tell me the correct way to adjust the hydro shift linkage on my 312H. I got some info from the local library, but kind of vague. I have a hard time finding neutral (very touchey) and reverse works sometimes great and sometimes not at all. It seems if I pull it into reverse hard it helps. Also is there such a thing as a vacuum for this tractor. A buddy and me have been designing one to run off the pto pulley and idler setup from my rototiller and have it blow into a wagon. He suggests trying to get a different blade like he has on his JD that has a higher back lift to blow it out to the vacuum better. Anyone with any thoughts would be great.
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Hi, Check for play in all of the linkage. We have had to drill out the lever under the frame and the rod going back to the transmission and put a larger pin in. Also check the link at the transmission, the one with the double ball joints on it, this is a common source of slack. Good luck, Al
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What are you using for a vac fan and hose/tubing diameter? Fan speed and any leakage points would be a concern. The original vacs used the standard blades.
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For a vac fan we were just going to use a disc with 6 paddles on it (that is all the JD one uses). I don't know what size of tubing to run yet, that is why I was hoping someone had already done something like this. My bigger concern is fabing up the fan housing. Oh well experimentation is always good.
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