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JD 4020 Priority valve
i have replaced priority valve with a used one , no change what spool would you be talking about ?.. I have ordered some flare cap and plugs to start isolating my hydraulic lines leaving the priority valve and see which one stops the plunger valve to stop hammering in priority valve and go from...- Jackless@1234567
- Post #10
- Forum: Tractor & Farm Talk
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JD 4020 Priority valve
1965 j d 4020 priority valve hammering noise , louder than engine noise. Took all internal springs ,shims, rod , ECT out of priority vale and started tractor and no noise ? have changed pump, filter, cleaned screen, fluid, even changed number of shims in the priority valve plus put new springs...- Jackless@1234567
- Post #6
- Forum: Tractor & Farm Talk
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