Pics f the T@T?? They used 2 different models.
More than likely you don't have a screw to release the pressure.
You'll need to loosen the first hyd. line you can see.
3 days ago I had the opposite problem.
Mine wouldn't raise.
I undid the front hyd. line and was able to lift by hand to install the trailer bar.
Make sure the grounds are good.
My problem was inside the cap on the motor there is a points setup and it has the green lead connected/ soldered to it.
The connection broke.
The relays would work but the motor wouldn't spin.