Just curious how bad your deck belt vibrates on your Ariens max zoom or your gravely HD ZT's. My spring is adjusted to the 12.5 inches but still vibrates pretty bad. I pulled the blades off and it still does it without the blades. It slaps the right side trans and leaves belt dust on the deck from rubbing the belt guard when it slaps. Any ideas before I have to take it to dealer. It only has 4 hours on it. Here is a video with the blades off deck.Thanks
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