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If you suspect your mower is vibrating excessively due to an issue with the blade, inspect the blade for damaged and test for balance. If it is damaged, replace it. If it is out of balance sharpen the blade so it is balanced or replace it. Testing a blade for balance is as easy as hanging the blade on a nail driven into a wall through the. How to Diagnose the Damaged Crankshaft. Remove the first possible cause of vibration, which is blades. Run the mower without blades and be careful to notice the sound and the shaking after their removal. If the lawnmower is again vibrating then it can cause by the damaged crankshaft. The next step is the removal of shaking causes. Are you feeling any unusual or excessive vibration from your Husqvarna riding mower? If you're saying yes, then maybe the blades, spindles, or pulleys of your mower are somehow bent or damaged. It happens when you mow over rocks, sewer lids, roots, and other large objects like these. You can simply replace any damaged part, however.
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