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John Deere Tractors Discussion Forum
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4020 Got a Couple Questions

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idontno

08-06-2004 21:44:06




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I got a 4020 D that I just put motor in and it's been sittin for 7 years.I had to pull it and go round several corners with it.Now my steering will go left ok but right I have to turn it all the way to the stop to get to turn and it is slow,turning that way.I did the bleeding 4 times turning it to the left, then right.It had small amount of air come out.It solved my problem at idle. but rap it up and drive it ....It still turn funky.It will act up at startup and act like it ahs some air still in it.Can it? Does it take a while if it is been empty?I don't have no leaks .Also I changed it over to alternator and put small clearance in the line going to switch.The back of the alternator has very lil magnetics.If I take out the light it will have lot of magetics.But it runs hot charging that much.I can still lay my hand on it but not for long.Is this too much heat?DO I need a light in the line? Sorry for this being long but....Thanks idontno

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Wayne

08-07-2004 06:36:07




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 Re: 4020 Got a Couple Questions in reply to idontno, 08-06-2004 21:44:06  
You have got an internal leak either in the steering motor or the steering valve. To see if you have a leak in the motor there is a small rubber hose about the size of a pencil hooked to the oil cooler in front of the radiator. The other end of this hose hooks to the steering motor. Tractor should be at normal operating temp. Unhook this small hose from the transmission oil cooler and stick it in a bucket and run the tractor, if you get much oil at all out of this hose while trying to turn the wheels or just running it,it is the motor leaking. You then have to take the front end out from under the tractor and then remove the part that turns the front wheels. Then you have to remove a side frame and remove both of those pistons that turn the front wheels and put new orings on them.
If you get nothing from the little hose it will be the steering valve under the dash that will have to be rebuilt because of a leak in it.

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