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Danforth, Illinois | Was baling straw yesterday with the 1086 everything was going good. Shut the PTO off to cross a waterway and when I went to restart the baler nothing. The PTO will not turn at all now. Any ideal on what might have happened? And is pulling the PTO (if I have to) a big deal. I haven't had to do that yet. Thanks for any advice. |
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Farming in NW Iowa | The control valve spool connected to the PTO linkage has a small pin connecting the 2 halves together and may have broken. The bottom plug has to be taken out of the PTO housing and the spool assembly comes out the bottom. The top nut is threaded to the spool and probably has a jam nut under it. Sometimes the 3 pt sway limiter linkage has to be taken out of the way to get the spool completely out.
Edited by dragon71 6/27/2010 23:37
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Manitoba | I think the pto on the 1086 is a weak point on those tractors. I have been told the 1086 is the same as the 966 as far as the components in the pto and we have had issues with the 966 we use on a mixer wagon. That being said I think we have solved the issue by running the mixer wagon at a higher rpm than we were. Since we switched that we have not had issues but had changed the pto clutch discs twice before doing that. I have not changed the pto clutch discs myself but the guy we get to do it says it is pretty easy to do. (looked like it was no problem but I did not help him) The whole thing is accessible by removing the housing at the back of the tractor so it is not a big deal.
Before doing that check the oil level. (transmission) In our 966 it takes a lot of oil to move the level when it is just below the add so what might not seem like a big deal (just a little low) may be quite a bit low. I have had it once where the tractor did what you are saying yours did and by topping up the oil it was fine. I also cleaned the transmission filter (metal screen, on the 966 on the right side of the transmission. It was quite plugged up (you could hear it kind of whining when you used the hydraulics) probably bits of clutch plate from the previously mentioned problem.
The clutch kit was $ 77.00 last time I picked one up so parts not too bad for cost. Maybe someone else could respond regarding the actual procedure on changeing the clutch.
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Westphalia Texas [central texas] | The pto has its own hyd pump and its own suction tube , have seen the tube fall out of its place, but not likely Is this a early 1086 or a late model that cuts its self off when the tractor is shut down ? Most likely it was time for the clutches to go. Easy to fix or if you don't want to mess with it ,its easy to take out. Drain the oil in the rear end, take all bolts out that are long enough that will reach the main tractor housing, if you take out a short one put it back, don't want it to come apart yet, need to take the whole unit out. Theres is one short bolt on the bottom left that hides from most people, that short one does have to come out. Leave the drawbar in so the unit has something to rest on, slide it out and after about 6inchs push down on the back of the pto to get the suction tube thats aiming down to clear. When going back its easier to take the top link cover off to line up the shafts. |
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Westphalia Texas [central texas] | Would talk you though an over haul if you like, check the tub's screen to see if its clogged , some have a small screen in the tube some have a big screen made on the tube. Don't know how much you want to learn about it, there's quick fixes with just clutch pack, or you can rebuild it completely, you might enjoy taking it to a person that's done one before and watch it being done one time, there some teflon rings on the piston that can be tricky, does that a tool to mash down a spring to get it apart , but you can make that out of some scrap iron and all thread, get you an IT manual from a 706 all the way to a 1586 . nothing to it. Besides there's a lot of folks on NAT that can help you though it. |
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Danforth, Illinois | I think it is a 1978. Dad mentioned that it had a 5 second delay from the time you pulled the lever til the PTO turned on. There was no easing the PTO in gear. I was wondering about the IT manuals, I will pick on up now. Thanks, I will be tearing into it tomorrow. I will let ya now what I see.
Edited by farmer56 6/27/2010 19:25
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Upstate Ny | there are ussually two things to look for, more than likley the clutch pack went. if the small pin went then when you pull up on the lever there would be no resistance. its a pretty easy fix if its the clutches. drive the front of the tractor in to a ditch, or drive the rear tires up on some blocks. this way you wont have to drain any oil. just a drain pan to catch a gallon or so. pull all the bolts except the two short ones at 1 and 7 o'clock. the clutch pack is about 55 bucks from aftermarket companys. as far as a week spot, i find these pto units hold up very well and ar a much easier fix than deere. like someone else said, the biggest area of problems is on mixer wagons where people run them too slow and slip the clutches. |
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WC IL | My bet is on the pin in the valve spool. Would sure check that before I pulled the PTO. |
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| Don't know about the 86 serie's, but the 66 serie's linkage would wear in the pin hole's. When you broke it back,over center to shut it off, the slop would let it slam down and snap the pin in the valve spool. |
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Westphalia Texas [central texas] | definitely check the pin on the spool valve first before you do anything else,sorry didn't mention , thats why this is a wonderful forum,plenty of brains out there |
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southern saskatchewan | Those pto's if the pressures are set right seem very durable. Have used several of those tractors for years without changing any internal parts.Seems like its something to do with the linkage. If its your clutches getting the pressures set right is important. |
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Manitoba | blr, How do you go about testing that (the pressures?) and if needed changing the settings? |
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IH 1086 PTO?
