2620 Hydro noise at high speed

[Arrow1]

A few months ago I was driving down the road at full speed and screeching
noise came from under the middle of the tractor. I thought it was the mower deck wheel hitting a bump in the road and spun. But it happened again this last weekend and the mower deck was off. Im not sure if the noise would have been steady because I slowed down when it started. What could this be?

Thanks for any info

 

[rickvh]

Mine does it too. Same noise, same scenario. I was going to ask the dealer about it. What year is yours?

 

[Arrow1]

Mine is a 2009. What year is yours?

 

[rickvh]

Mine is a 2008

 

[628pm]

Same for me, I bought mine in 2008. Doesn't do it all the time. Use to drive it to another property 2 miles away, now I just trailer it.

 

[rickvh]

Just talked to dealer about the noise. His "guess" was that it might be where the front drive shaft goes into the housing and may be reverberating through the housing. Suggested applying some grease in that area. I don't know if He really has a handle on it. He also suggested topping off the oil as well. Keep looking and post back if you come up with anything solid.