Any help diagnosing this transmission problem will be greatly appreciated. I was pushing logging debris when the machine just stopped, I attempted to shift to reverse and nothing. It would go through the gears forward and reverse but no movement. Shut it down, looked around for any oil or other issues. Cranked it back up then it would not go into either forward or reverse. I put a rebuild transmission in it in 2021 and it had been working great. The screen under the pump was clean. Put pressure gauge on two ports on front of transmission and 0 psi there. Put gauge on pump and got 80 psi at idle and 180 at full throttle. The shaft is turning and I pulled it up to the road. Could it be the pump,  I put a new one on in 2021?

Check the transmission modulating relief valve spring, it's on the inside top of the transmission.

Been waiting on my local mechanic to come for 3 weeks, that’s something I’ll get him to check. What about the pump pressure should it be higher than 180. Thanks

Pressure is to low. Minimum is 260 psi, maximum is 310-330 psi. Pump pressure in neutral.

We’re you going up in kind of incline when it stopped? If I remember right some of those were prone to getting air in them. If that’s the case I think there is a bleader bolt on top of the unit 7/16 loosen it while running to oil comes out. If that does the trick we always kept it about an inch over full it helped, and a wrench of course. Good luck,

I was on flat ground but I’ll try to bleed anyway. Thanks 

There’s a plug on top of the pump. That’s where I took my pressure reading. Is that proper place to attach the gauge?

Yes, that's the place to check pump pressure, also to bleed any air.

Ok, thanks 

You got different problems than air in the system!