4820 Power Steering chirping since new

[stoyan79]

Power steering is chirping like low on fluid, or pump about to go bad.

Not all the time, but few times every minute.

Otherwise, it works fine.

Dealer says its normal?

Tested new 4820, 5520, 494, 594 on lot and most are chirping too. Weird.

Replaced HST fluid @ 50hrs with Amsoil, did not change chirping.
100hrs now, no abuse, and very low use.

 

[Tinhack]

Is the fan belt tight? I've never heard chirping from low fluid. Low fluid will typically cause a growling noise. I've heard lots of chirping from loose or bad belts.

 

[stoyan79]

Is the fan belt tight? I've never heard chirping from low fluid. Low fluid will typically cause a growling noise. I've heard lots of chirping from loose or bad belts.

I will check on this. Thanks.

 

[oldnslo]

Does the chirping happen even when sitting stationary and not turning the steering wheel?

Does it change when steering vs not?
Does frequency change with engine RPM?

I am 99% certain that model has a tandem gear pump with one section for steering and other for implements so possible there is something in steering unit causing a chirp but not sure what it would be.

 

[CloverKnollFarms]

I have the same tractor and have never experienced this sound

 

[DonRybak]

I agree with Tinhack that the belt is the best possibility. If it's loose enough to allow it to bounce it's possible that it's rubbing on something such as the mounting bracket. Good luck.....

 

[TractorTYMe]

The 1st 50-100h the belt will stretch the most during your ownership, I'm at 635h on original belts now on my T474 and it still looks new when you do weekly technical checks before using your tractor.