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Discussion Forum
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Tractor split/Help!

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JW

12-07-2002 08:23:39




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I know this board deals mainly w/ older models but I have a problem I hope someone can help with. I have done mechanic work for most of my life, and actually made my living as a body man for about 20 years so I'm not a stranger to the business. My problem...I bought a little 5020 AC 4wd tractor w/ a front loader & blade & a bunch of other accessories for a good$ figure. I ran it for about a year and needed to put a clutch assy.in it. No problem, right? I've put clutches in about everything that moves except a tractor...but still I'm thinking, remove lines,etc., split the thing, clutch it, back together. Easy, relaxing weekends' work, right? I can not get this thing (case)back together. I've got everything lining up and I get within about 1/2" of having the front half and rear half tight together and it binds up and thats it. The clutch disc & pressure plate are on the money (alignment tool used), when I go back together I am using caution to make sure I'm not off angle. I'm feeling reeeaaall stupid right now and the frustration level is mounting. Any suggestions from some of you guys who know the game and have worked on these things a lot will certainly be appreciated!!!

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stan

12-08-2002 13:17:31




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 Re: Tractor split/Help! in reply to JW, 12-07-2002 08:23:39  
I think the the person who said the pilot bushing or bearing is not lineing up is correct, benig that close is about the only thing it could be. Let us know what you found. Good luck



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Gordon Chance

12-07-2002 17:22:09




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 Re: Tractor split/Help! in reply to JW, 12-07-2002 08:23:39  
Another thing to look for while you have the tractor apart is to be sure that you have not installed the clutch disk backwards from the original installation. If you have, the hub could be bottoming on the shaft splines or the PTO drive shaft and preventing the tractor from coming together. It may not be your problem but it can't hurt to check. Good luck.
Gordon



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Gordon in IN

12-07-2002 17:10:10




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 Re: Tractor split/Help! in reply to JW, 12-07-2002 08:23:39  
some suggestions: 1. use long "Studs" in the blot holes to assure alignment of the two "halves" of the tractor.
2. The splines may not be aligned properly. If you have a single clutch, put the tractor in netural and the POT engaged for "engine drive" not "ground drive" (if you have that feature). You can then turn the PTO shaft which will turn the (one)front transmission (PTO and tractor input) shaft and as you bring the tractor together, you can "feel" the splines engage and slip into place. If you have a two stage or two plate clutch for "live power" remember that you have two sets of splines to engage as well as a pilot bearing for the shaft to interface with. Put the tractor transmission in netural, put the PTO in gear in "engine drive" not "ground drive". You can turn the PTO shaft which will turn the PTO front transmission (PTO input) and you can "feel" the PTO set of splines engage as you bring the two halves of the tractor together. If this happen first then go to the next step. If this does not happen you may have to go to the next step and then come back to this step. Second step: Put the tractor in gear (I like to use highest gear), put the PTO "out of engagement". You want the two splined input shafts to be able to rotate/move independently.) Bring the tractor slowly together, rotate the engine crankshaft BY HAND, do not use the starter, that much power, speed and rotation is NOT what you want. As you rotate the engine crankshaft by hand, a fraction of a turn at a time, you can feel the splines engage, if they do not engage go back to step one and try to turn the PTO shaft to get the transmission PTO inpot shaft splines to engage. You may have to go back and forth between step one and two a number of times before you get both sets of splines and the pilot bearing and the shaft to all go together. Do not force it at all. It is easy to damage a clutch disk or two. If you have a two stage clutch it probably came with "shipping bolts" to held the whole assembly together and in place. These "shipping bolts" should be removed AFTER the clutch and pressure plate is installed on the flywheel. The clutch may need adjustment between the two stages before the tractor is put back together. Check your service manual CAREFULLY. Good luck, Gordon .

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david

12-07-2002 16:16:01




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 Re: Tractor split/Help! in reply to JW, 12-07-2002 08:23:39  
if you can get to within 1/2 inch,isnt the only thing stopping you is the pilot bearing,if used.As long as you have it apart slide the pilot bearing up on the input shaft to be sure. I've at times,tapered the end of the shaft just a little.Also I've bumped the starter to rock it enough to help it slip in. Be sure its not in gear.



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Dave Wis

12-07-2002 15:47:35




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 Re: Tractor split/Help! in reply to JW, 12-07-2002 08:23:39  
Just a thought, did you try the new disc on the shaft before installing it on flywheel. I've had some that were burred and needed to be cleaned up before they would slip on freely. Also the only lineup tool I've found that works good every time is an old pilot shaft. Without one I have much better luck eyeballing them. The ones with a tapered guide allow too much movement, especially if everything is right on tolerances and needs to be lined up real close to slide together.

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JW

12-07-2002 15:56:17




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 Re: Re: Tractor split/Help! in reply to Dave Wis, 12-07-2002 15:47:35  
I've never used an old shaft before. I'll have to see if I can dig one up. I did't try the disc on the shaft first either. I went ahead and pulled it back apart. Try again tomorrow. Thanks a bunch. I think maybe I need some time away from this thing.



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wheatland47

12-07-2002 18:58:41




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 Re: Re: Re: Tractor split/Help! in reply to JW, 12-07-2002 15:56:17  
yes, sometimes, walking away makes a great difference!!!!! I/ve fought split tractors for 2 - 3 hours, won't go!!!! walk away, have a cup of coffee, come back, and they fall together!!!!!!!!!



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JW

12-08-2002 15:20:06




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 Re: Re: Re: Re: Tractor split/Help! in reply to wheatland47, 12-07-2002 18:58:41  
To all who responded, Thanks a million!!!! Haven't had time to jump back on to the beast yet BUT I have given her a good talkin' to and with the feedback you fine folks have provided I'm certain that she will cooperate when next we meet!!!!!!!! Thanks again, JW
P.S. I'll post up when we vanquish the foe!!



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