4020 lost all hydraulics

Chuck Hebert · Jan 14, 2013

1965 4020 with powershift. The hydraulics has been weak for some time. As the tractor warmed up the 3pt and hydraulic cylinders would chatter and move slow. All hydraulics have gone out now, brakes, steering,3pt,trans, will get a little response if running for a bit, but will go out shortly after you use it. Is it the main pump.

4020_1966 · Jan 15, 2013

It sounds like your transmission lift pump is dead. It is not sending any oil to the main pump.

Tx Jim · Jan 15, 2013

I'd suggest changing hyd filters,cleaning sump screen and then checking trans pump and main hyd pump pressures. It's possible damper clutch stripped out.

4020 lost all hydraulics

Chuck Hebert

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4020_1966

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Tx Jim

Well-known Member

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