Combines 6620 Hydro problems

Steve_from_Tn

Guest
No, this guy is actually pretty smart. He did it on his Case IH 4 years ago and is still driving it. He just added a quart of 80-90 to his hydrualic oil. He hasn't had any problems since. I was wondering if anyone had tried this with a J.D. combine.
 

Dr__Deere

Guest
If you want to replace the hydro putting gearlube in it would definetly do it for ya. while going up a hill do you hear a popping noiseIJ If you do the easiest thing to do first is to swap the high pressure relief valves, that will most likely take care of it.
 

Grain_Reaper

Guest
We had the same problem on our 7720 when we first got it. We switched the two valves and 5 years later still no trouble.
 
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