Hew holland 1620 wont move after it gets hot

[Prolinefisher]

I have a new holland 1620 that runs fine until it heats up and then it gets sluggish and wont move. The engine is fine it feels like it is in the hydro system. I have changed the fluid and filters but it does the same thing. I am pretty good at doing most repairs by myself but am at a loss here. The pedal feels funny and it whines when it si acting up. I would appreciate any help on this. Thanks in advance.

 

[dynasim]

Some have had air leaks on the suction side of the charge pump that get worse as the temperature rises. The noise is the symptom that suggests this.

Chris

 

[jayhawk rv]

What did you figure out was the problem with your tractor? Have tc40d doing same thing,Want to make sure I cover all bases before I split tractor into to get to the charge pump.