Leaking steering box, John Deere 2030

/ Leaking steering box, John Deere 2030 #1  

Nedferd

New member
Joined
Aug 9, 2025
Messages
1
Tractor
John Deere 401B, 2030, 2950, 1010
My hydraulic steering unit leaks past the base gasket. Return oil from steering is supposed to go back to the transmission pump. Have I missed a return port?
 
/ Leaking steering box, John Deere 2030 #2  
Are you talking about the valve in the console, or the "motor"? The steering valve ports, IIRC are o-ring boss. You need to use hydraulic o-rings that have a higher durometer rating than the cheap nitrile o-rings that cant handle the pressure. If your base gasket is leaking, either your return is plugged somewhere causing an over pressure situation in your valve, or you have a blown gasket. If its in the steering "motor", again, wrong o-rings, bad gasket, or plugged on the return side.
 
/ Leaking steering box, John Deere 2030 #4  
Welcome to this forum
Return oil from power steering control valve on JD utility tractors of that era travels through hole in the mounting gasket back through a galley in clutch housing to trans reservoir.
Screenshot 2025-08-10 055709.png
 

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