Backhoe John Deere 410B Hydraulic problem

[JLazyA]

I have a John deere 410b hoe with a hydraulic problem. It bareley moves when cold, as it warms up it moves faster. Anything hydraulic, steering, lifting, or hoe. We have changed the screen in the transmission, checked the line to the pump, and rebuilt the pump. And it is still the same. I think it is the priority valve but not sure what to check next.

 

[Tx Jim]

First thing I would do is check trans pump psi & flow. PSI should be around 165-175 and flow 5 gpm. Usually it's the other way around. Works good when oil is cold and quits when oil gets warmer.

 

[wooden]

How do you check the PSI and flow??

Wooden

 

[JLazyA]

Where can I buy a gauge to start checking where the pressure isn't going???