TC33D hydraulic squeal

[HobbyDan]

Anyone run into this. Came on fast at the end of winter. A loud squeal in the loader and drawbar lift. Hydrostatic seams to have full power pushing snow. Wasn't that cold out , 20 degrees or so, and that day the noise just came on strong and won't quit now. Changed the large filter and at idle had lots of power. Lifts the front end off the ground easy. Drawbar working fine. Increase RPM's and noise returns. Suggestions.

 

[HobbyDan]

Hobby Dan with a report back. After weeks of trying to figure out what was wrong, took it to a small one man local repair shop that works on lots of farm equipment. Got it back working great. Turned out to be a stuck pressure relief valve, That was stuck and would not move. At All Finally unwedged the piston, polished and reset main and loader pressures to match.

 

[macribor12]

Tractor hydraulic fluid is usually at least as thick as oil. And ive never seen it that color. I know they are often all different but my tractor takes 90weight.

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