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phil(va)
12-20-2007 06:44:29
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Re: 1959 ferguson to35 hydraulics not working in reply to D.Eaton, 12-19-2007 19:11:09
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As others said, don"t use 90 wt. GL-3 or GL-5. The manual correct oil is mineral oil, or what is now called GL-1, not available everywhere, but NAPA and TSC have it if you look (and ask). Having said that, GL-1 is fairly thick itself, and could be the cause of your slow lifting if you are in a cold climate, especially this time of year. You can use regular motor oil, 15-40, or some such, which is a little thinner and works fine, especially in cold conditions. The TO-35 takes 8 gallons, unlike the TO-30 which only takes 6 gallons, but it"s the same stuff. When you drain, make sure you get it all. You can reach inside and pull some gunk out, and it takes hours to completely drain. When you fill, there is a baffle which keeps the level from being correct until the tractor is moved and the fluid has settled, so don"t be too quick to add more. You can drive it up and down a hill or two to make the process faster. As Jerry said you may have a leak causing the lift to drop, or it could be the relief valve. That seems like a separate issue to me, but it is curious that both occurred when you put in new fluid. I hate to suggest you change the fluid again just to check for the leak down problem, as the fluid is expensive, hard to dispose of, and not evironmentally friendly, but that might be the overall best approach given the circumstances, and depending on how cold it is where you are.
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