I up-dated combines from 4420 to a 1998 9410. Used it in wheat and like it fine. But the only thing Ive noticed is the hydro doesnt hold speed. i was going 2.4 then on hills it will come down to 1.9-1.7-1.6 etc. Is this the norm?
Thanks for your reply GoGetter. Now how about the feeder house dust fan? The bearings are out on this and the belt was off and all plugged up. When we got unstuck is when we found the bearings where bad--dont know how long past owner left it. Is this something to fix is just leave it? I ran wheat with out it.
So it's either normal, or it's bad, within 2 replies. Nice. Kind of turns out to be a restatement of the question that way.
If I were in your shoes and didn't know any better, I would do one of 2 things. Have it checked out or at least speak in detail with your dealer, or even someone nearby who has a similar machine, can see your hills, your ground your condition.
Or, keep a close eye on things for a while. Is it slowly getting worse, is something really hot, that sort of things. Good luck man, I wish I could help more.
good way to test the hydro without a guage is park on a slight incline and try taking off in 3rd gear. It should try to lug the motor and take off quite easily. If it very slowly takes off with little or no engine load hydro is weak or reliefs are bad etc. forget what the spec for high forward stall psi is but 3700 comes to mind. might be higher still.
Thanks all--today I went to my JD dealer and the service advisor seems to think this is normal--he said I could get in any one on there lot and find them the same way. Also a friend had a 9500 then 9550 and now 9570 and he seems to say, that is a JD hydro! Seems strange to me--still, but will have to see what time brings--I guess.
one thing u might do is change the hydro filter. I was thinking that they would loose a little speed but that it would loose .5 seems high. I could be wrong. I would try running in 1st gear and see if it does it.
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