4020 slow to lift


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4020 slow to lift

clint I have a 4020 john deere and when i hook the disk up to the tractor the disk is very slow comeing up,i have changed the filters and the tractor is full of hydrolic fluid.Whats the problem??THANK AND GOD BLESS!!
ross There is a flow adjust on the select control box underneath the hood if it is '69 or older or if it's '70 model or newer the adjustment lever is on the SCV itself, it controls the amount of oil flowing out of the select control valve. This might be turned down enough to make it lift slow. If it has two SCV's then you might try the other one. If all else fails then test what your pump pressure is, your stroke control valve might be getting weak. Hope this helps.


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