Whisteling noise, Toro Z150 2003 Help!

[rdran5]

Just noticed a loud metallic whistle, It seems to start after the machine is warmed up, and rolling, can't pin point it, it isn't coming from the wheels, I don't think. It is there with the pto engaged or not engaged. Very noticable at low RPM when rolling down a drive way.
Any input or advice is appreciated.
And yes, everything has been greased properly and the belts are less than 15 hours.

[grass_cuttin_fool]

Im not famliar with that model but could the hand brakes be adjusted a lil to tight and squealing, my toro walkbehind does this but im not sure how the brakes are on the Z

[Restrorob]

I'm not Familiar with this unit either, But I've seen similar symptoms and found a bearing going bad in the electric P.T.O. clutch once warmed up and a idler pulley a couple times. For what its worth




14yr. Briggs & Stratton Master Service Technician
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[rdran5]

Thanks for the suggestions, I played around with the hand brake to day and it seemed to have a connection to the squealing, 2 year warranty expired in April, I should not have put it off.
We live We learn..
If yall think of anything else let me know.
R