IH766 hydraulics

wayne766 · Jun 17, 2010

I have a 766 black stripe that I think is having hydraulic issues. I know there was some water in the hydraulic fluid and drained and replaced filter and new HYTRAN fluid. Then went out to cut hay with disc mower. During mowing the steering was hard and gets real hard to turn in a tight turn. When you touch the wheel brake when fully turned the tractor hesitates and when let off the brake or turn steering to straighten it lurches forward real bad. The hydraulics on the 3 pt. and the auxillary valve works fine. Can anyone tell us where to go from here for trouble shooting or if the hydraulic pump needs adjusting how to do it or if that is the issue. I truly thank everyone for helping me out everytime I have to ask a question on here. This forum is the best I have ever used that helps solve a problem for an average person of mechanical ability by persons sharing expert knowledge. Thanks to everyone in advance.

the tractor vet · Jun 17, 2010

You are dropping pressure on the MCV So you may be in need of a new MCV pump or your flow divider is sticking The pump needs to be flow rated with a hyd. flow rater to see if it is putting out the correct gallons per min and at proper pressure . This needs to be done by someone that has a flow rater and the knowledge on how to preform the test . If it is a sticking flow control valve then here again it is best to let someone who knows what he is doing .

IH766 hydraulics

wayne766

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the tractor vet

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