7040 powershift

dairyman · Sep 21, 2017

Does anyone know if the pump that runs the powershift transmission is the same as the power director tractors? My pump is failing and the local salvage yard only has power director tractors and I didn't know if it used the same pump.
Thanks ,
Dave

DrAllis · Sep 22, 2017

A good salvage yard should know the answer to that question. Yes, the pumps are the same between PS and PD, BUT, the later tractors had a little larger pump than the early tractors. If your pump is going bad, I'm sure whatever they have will be better than what you've got. What makes you think your's is going bad????????????????????

dairyman · Sep 22, 2017

I had the powershift rebuilt in February because of
issues last fall where we were pulling a 15 ft tandem
disc and the trans pressure light came on and the
tractor quite moving. The shop that did the work
rebuilt the mechanical side of the powershift and
sent it back. Then this spring I experienced shifting
issues and stalling in reverse so it went back to the
shop again that time for what o was tiold was work
on the shift valves. Used it to run the round baler
this summer and would be fine until the fluid got up
to temp and then the trans pressure light would
come on so I put a gauge on it myself and cold it's
reading 230 psi on the regulating valve but if you
run it enough to get the trans pressure light to
activate at full throttle the regulating pressure then
reads 170 psi. With everything else that's been
done I can't think of anything else it could be. And
no I'm not happy that the tractor is still
malfunctioning after 2 trips to the shop.
Thanks for the info on the pumps.
Dave

7040 powershift

dairyman

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DrAllis

Well-known Member

dairyman

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