We dont know where you are from ? If it is a cold environment -- tell us if the hydraulic whine just started or it was always there as you remember. Typically a sound like that (open center system, gear pump) indicates that the intake feed(screen or what ever is used) is restricted. A pump cavitating will make this noise. If it is cold where you are and you stated that you figured you had water in the system -- I would say your intake was restricted with ice. If above freezing and the likelihood of ice is not possible then your intake is restricted with some thing else. Having the feed restricted will also greatly hamper getting the air out of the system after changing oil/flushing the system. That being said some hydraulic systems have many unusual sounds to them--- that is why I asked if this sound has always been there?
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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