JD 4020 Priority valve

magpiene · Apr 7, 2015

Where is a good place to get a priority valve for a 4020. Or should I try to rebuild mine. Works fine , but rattles terrible.

David G · Apr 7, 2015

Are you sure pump is working OK?

Bob · Apr 7, 2015

There's nothing in there but a plunger and a spring. Unless the spring has broken, all should be well.

I agree with the other reply, you probably have main pump issues, or it's cavitating from lack of oil from the transmission pump through the filter, etc..

David G · Apr 7, 2015

I should say pumps.

Tx Jim · Apr 7, 2015

I agree with the other posters. I'd suggest to check stand-by pressure. It should be 2250 psi.

JD 4020 Priority valve

magpiene

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David G

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Bob

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David G

Well-known Member

Tx Jim

Well-known Member

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