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John Deere Tractors Discussion Forum
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jd 4020 Power steering leak

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Den H

08-13-2011 04:13:10




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Actually not sure what this is. A tube (1/4") that is located above the front wheels has a leak (pin hole)and is shooting hydraulic fluid. Any ideas? Is this something I can take care of?
Thanks
Dennis




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Tx Jim

08-13-2011 04:21:25




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 Re: jd 4020 Power steering leak in reply to travz500, 08-13-2011 04:13:10  
Is the 1/4" tube made of plastic?



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Den H

08-13-2011 06:29:37




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 Re: jd 4020 Power steering leak in reply to Tx Jim, 08-13-2011 04:21:25  
No, it's steel. I took a pic but can't figure how to put it up here. It's a steel tube running left and right just above the steering arm tie rods. I can't see where either end goes to or from.



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Tim S

08-13-2011 06:35:44




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 Re: jd 4020 Power steering leak in reply to Den H, 08-13-2011 06:29:37  
It's a steering line that takes the pressure over to the other end of the steer motor, yes you can remove it, but if you have a wide front you may need to drop it down to get to it, they get a bit rusty under there, rock the fitting a bit to see if it will free up,if it's rusted stuck put some head on it first, you can braze the hole shut and re-install the line.



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Den H

08-13-2011 07:03:49




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 Re: jd 4020 Power steering leak in reply to Tim S, 08-13-2011 06:35:44  
Thanks Tim, Yes it is wide front.
Do you know if there are any repair manuals that are better than others. I am really green on this and I don't mean JD green.



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Den H

09-17-2011 05:28:36




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 Re: jd 4020 Power steering leak in reply to Tim S, 08-13-2011 07:42:13  
Hey Tim, Thanks for the great info last month. I lost your email in the interm. I could use just a little more info on the front end removal. Have the long bolts, do you think I should pull the tie bars or remove the bolts that attach the bars to the steering hub? The bolts on the hub seem to be the way to go. Won"t damage the tie bar ends that way. What do you think?
Thanks
Dennis



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Tim S

09-17-2011 07:13:55




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 Re: jd 4020 Power steering leak in reply to Den H, 09-17-2011 05:28:36  
I remove the tie rods,if you turn it each way till it stops you can get to them easier, once you get the nuts off(there should be a cotter pin in there too)hit the steering arm(not the tie rod)strongly on the edge this will pop the tie rod off with out damaging any thing,the theory of this idea is by hitting the side of the hole area it distorts the tapered hole to allow it to pop out, almost like magic...

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Den H

09-17-2011 09:31:37




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 Re: jd 4020 Power steering leak in reply to Tim S, 09-17-2011 07:13:55  
Thanks Tim. I'll give it a try. Always used the fork on cars and it really tore the covers up.



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Tim S

09-17-2011 10:06:17




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 Re: jd 4020 Power steering leak in reply to Den H, 09-17-2011 09:31:37  
Yes the forks don't work very well, this "Hammer" way works good, as long as you can get a good shot at it.



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Den H

08-13-2011 08:29:20




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 Re: jd 4020 Power steering leak in reply to Tim S, 08-13-2011 07:42:13  
Thank You Tim...I really appreciate it!



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