3720 wines while running

[Fowheeler]

I have a 3720 John Deere tractor Hydro trans. Motor runs great but trans whines as it is moving. Anything to worry about ???

 

[Deere Dude]

Check hydro fluid level according to manual. Use hy gard Lo Vis oil if low. Keep RPMs at least 1500. If under a load after warmed up, it may whine a little bit but not much.
Are your brakes on?
Are you in to high of a gear FOR THE JOB?