TN75 pushing in turns

[Kplmn]

I’m new to the forum. I just picked up a clean 2000 NH TN75 2wd. It doesn’t have a front loader. When I make a turn it wants to keep going straight. Turning becomes a challenge. I have a small weight bar with 175 lbs of weight. Tires are not filled. Does this tractor need a loader to have an enough weight to turn properly? Th ask for your thoughts.

 

[bczoom]

I don't have that tractor but have you confirmed that the differential lock isn't locked

 

[Kplmn]

No idea.

 

[Kplmn]

Yup, bczoom was correct. The diff lock was stuck on. The pedal was stuck in the down position. With diff lock stuck on, the rear wheels were rotating at the same locked rate. So in a turn the outside wheel was rotating at the same rate as the inside turn wheel, forcing the tractor to run straight. I used a rubber bungee pulling up on the diff lock pedal. I sprayed/soaked the diff lock linkage several times with pbblaster. Then I made several slow s turns in the driveway and the diff lock released!