520 h hydro trans

[moe1965 744]

I got the 520 running today and had the tractor up on jacks. Forward and reverse worked fine.  I took it off the jacks and pushed it in the shop and heard what sounds like marbles in the trans when I was pushing it around .  I never owned a hydro before and don't know if this sound is normal.     

[JoeM 7,874]

Both of my 1100's make that sound. They both run fine. 

Might be the oil dumping though the checks, I'm sure someone here will know the exact answer. 

[19richie66 17,523]

Its the balls in the hydro that pump the oil. Here is the manual for the trans.

 

Edited March 11, 2018 by 19richie66

[cleat 6,363]

They do make a weird sound. I guess that is why it states not to tow.

 

I believe it is safe to push around however.

 

After they sit a while the sound gets much less. I guess the oil runs out.