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4040 john deere

A

Anonymous-0

Well-known Member
the steering is ok but not the easiest but get harder the faster you turn the steering wheel. any ideas ? And its not the block out in front of the dash cause i changed it out from another tractor that is good
 
Tx Jim might post a page from the parts catalog to help us out, but until then I would check up in the steering column above the hand pump. There is a thrust bearing in the steering shaft that will disintegrate and make the steering tough. I have seen this a few times.
 
it steers fine as long as your easy with the steering wheel,if you had to make a turn real fast is when it gets hard.A friend of mine said he had the same problem an just took the metoring pump apart and put it back together with new gaskets and it was fine after that
 
(quoted from post at 13:14:13 11/18/13) Tx Jim might post a page from the parts catalog to help us out, but until then I would check up in the steering column above the hand pump. There is a thrust bearing in the steering shaft that will disintegrate and make the steering tough. I have seen this a few times.
Click to expand...

Tech 7
I know that you're trying to get me reprimanded for posting too many parts photos. :wink:

mvphoto1037.gif
 
triston
I know you stated this valve had been swapped out but was the screen (parts key #3) & filter(parts key #7) checked on either valve??? Have frt axle spindles been greased???
mvphoto1036.gif
 
Some times #30 check valve leaks pressure past and gives a bit of a Hydraulic lock,this would give you the easy steer as you start up then getting harder afterwards..and the thrust bearing in the column needs looked at when you have it apart like Tech7 stated..
 
I just found out from the owner of the tractor that they have put 3 complete steering columns on it with no change,they all acted the same way. So i dont think its anything to do with the column and I put my valve with all my fittings on it this morning and that helped alot. It had several places that acted like it was sticking when you was turning the steering wheel. Now with my valve on the tractor it is no longer doing the sticking and is a 100% better it just doesnt steer as easy as it should especially when you force the steering wheel. Wondering what you guys think about the back pressure piston in the front steering motor? Is there any way to check for that? Or what would be any symptoms for the back pressure piston failure?
 
What is the stand by pressure ??,,and yes the steer motor could be causing the problem,,,If all else has been tried,, that's where I would go next....
 
Triston,
If the steering wheel is easy to turn stop to stop, when turning steering wheel slow as you have stated, problem is not likely in the metering pump under dash as it controls/meters speed of flow to keep steering controllable while at the same time controls position of the steering valve. I would suspect you have a restriction that is limiting the flow to/from the metering pump. If there has been any hoses, lines or fittings changed on the steering system circuitry check them for restriction. A good place to look would be a hose made on a hose machine that somebody over crimped the end on to the point of restriction. I have seen hoses that were over crimped where they were pinched clear shut and would not flow a drop under 2200 pounds of pressure. Hope you find your problem. Good Luck, DW
 
When you get into the steer motor get back with use for help getting that ornery pin out that hooks the pistons together and timing the pinion...
 
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