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John Deere Tractors Discussion Forum
Show Parts for Model:

Re: 4020 makes sudden pull to the right

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Tim S

11-10-2013 06:46:38
99.159.249.120



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This is a common problem,,and mainly because the most of them have never been resealed,, they have done a "Lot" of steering the last 40 years. Deere offers a kit, but it doesn't include the large lower pinion seal, they can be ornery to repair if it's your first one, when any of you guys get ready to do one I'll post some pics and hints on doing them,,don't wait too long to do them as they can put you in the ditch or worse yet oncoming traffic...

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Larry in WNY

11-11-2013 09:31:36
12.145.221.230



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 Re: 4020 makes sudden pull to the right in reply to Tim S, 11-10-2013 06:46:38  
Tim,

Our 4020 pulls to the right expectantly in road gear too. I would appreciate any hints you have to fix it. Thanks.
Larry



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Tim S

11-11-2013 09:43:39
99.159.249.120



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 Re: 4020 makes sudden pull to the right in reply to Larry in WNY, 11-11-2013 09:31:36  
Larry, it"s usually the steering motor, down front, when the seals get worn the pressure that normally holds every thing tight leaks off causing a void or low pressure in one of the cylinder sides this lets the wheel dart one way or the other, it won"t show up as much in the field because you are correcting your steering more often and this compensates for the leak off. Deere offers a re-seal kit but they don"t include the large lower seal in the kit,it"s not a bad job to repair, when you get around to doing it I will walk you through it with some helpful hints.

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