SE MT | Dieseldirt - 6/19/2018 23:52
Has anyone replaced a transmission lube pump and it solved their problems. My Deere dealer says they never have replaced one. Usually it's something else.
Slightly different situation, but our 4630 with the Quad Range had similar problems to yours
When hot the Hydraulics would barely work, not at all at idle when hot. PTO lever would kick out hot, and clutch was more jumpy (if that's even possible on a quad range), and the brakes were non existant unless you had the engine revved up.
PTO and clutch pressures were within specs when revved up hot or on cold oil, but when at mid range rpms or near idle they had dropped off 50 psi or more.
Only difference being that when I checked the screen it was full of brake material. Previous owner had a brake failure and then sold the tractor.
My 16K powershift 4630 has seen a brake failure, but I think we got it pulled apart in time... No trans pump yet.
Trans pump is what I'd lean towards even though it's possible a pipe could have broken inside or blown an o ring.... things happen after 40 years. |
John Deere 4630 powershift hydraulic problem
