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3020 load control seals

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Barney-South Ga

05-03-2002 04:48:18




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I have a leak on the left side of the load control shaft. The tractor hasn't been used much as I don't have very much wear in my lift arms/hitch assembly. The tractor has been sitting up and I don't think the seals have ever been changed after talking to the previous owner. My question is: should I replace the bushings while I'm in there replacing the seals. I'm replacing both sides of course. I would also appreciate some input from some of ya'll that have replaced these seals before as far as the do's and don'ts. The seals and washer set for both sides were only $8.58. This is a 1970 year model.

Thanks in advance; Barney-South Ga.

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mike

05-03-2002 20:27:14




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 Re: 3020 load control seals in reply to Barney-South Ga., 05-03-2002 04:48:18  
I'm not sure about the later models but on early ones some other company makes bushings with o-rings in them it's the only way to go.Some Jd dealers may have these.



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Barney-South Ga.

05-04-2002 04:04:47




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 Re: Re: 3020 load control seals in reply to mike, 05-03-2002 20:27:14  
Thanks Mike!



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ET

05-03-2002 09:45:49




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 Re: 3020 load control seals in reply to Barney-South Ga., 05-03-2002 04:48:18  
You may need to replace the shaft also if there is any wear or rust pitting on it. Coat the shaft with stp or simalar super lub before asembly. You can use the old load shaft for for the punch to knock out the old bushings by wedging a screwdriver or taper punch between the end and the bushing so that the shaft won't glance off the edge of the bushing when you hit the shaft. I use a hyd. jack to raise and lower the yoke( its heavy). There are load shaft shims listed for 30 sieries tractors to take the side shuck out between the yoke and trans. case, they work on 20 sieries also. The drawbar pulls on the load control yoke also and can make the seals go after many years.

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Barney-South Ga.

05-03-2002 09:53:08




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 Re: Re: 3020 load control seals in reply to ET, 05-03-2002 09:45:49  
Thanks for the information, ET!



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thurlow

05-03-2002 08:32:37




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 Re: 3020 load control seals in reply to Barney-South Ga., 05-03-2002 04:48:18  
Ask your JD parts man about some bushings with a machined groove to accept o-rings. It was almost impossible to keep seals in tractors that used 3-point hitch equipment. Fertlizer buggys or something similar that bang on the drawbar are also hard on seals. The bushings with o-rings pretty much will fix your problems.



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Barney-South Ga.

05-03-2002 09:50:48




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 Re: Re: 3020 load control seals in reply to thurlow, 05-03-2002 08:32:37  
Thanks for the information! I'll ask about those bushings.



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Rodney A. Johnson

05-03-2002 06:37:30




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 Re: 3020 load control seals in reply to Barney-South Ga., 05-03-2002 04:48:18  
I replaced the load control shaft seals on my 3010 JD which should be fairly similar to the 3020. I also thought that I should replace the bushings since I was taking it apart any way. Problem was I didn't have a nice long (and I mean long) punch to take out the bushings. The 3pt was little used on my tractor, and the bushings looked pretty good (no wear on the shaft or bushings that I could see), so I just kept the bushings (for another day...if I ever need them and remember where I put them) and only replaced the seals. Has not leaked since. I have the JD service manual that covers the 3000 series (3010 and 3020). It says to use a long punch to knock out the bushings from the opposite side of the tractor. Of course you also have the fun task of trying to work on everything with the wheel right at your back (I can't imagine how you could get a long enough punch through the housing with the wheel there).

PS. I was told that one of the main reasons why these seals goes out is because the 2 points can bang around when not hooked up. Supposedly this will cause those seals to wear out quicker. So I have a rubber stretch strap that I use to hold the two points together to keep them from swaying freely.

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Barney-South Ga.

05-03-2002 09:48:40




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 Re: Re: 3020 load control seals in reply to Rodney A. Johnson, 05-03-2002 06:37:30  
Thanks Rodney! Good information!



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