Why is my Alamo PA92 vibrating excessively?
- JjuanknightAug 14, 2025
Excessive vibrations in your Alamo Lawn Mower can stem from several causes. It could be due to rough treatment, meaning it's being used on materials it's not designed for. Check the gearbox bolts and tighten them if they are loose. Also, inspect the bladeholder and blades for loose nuts and tighten them. A bent output shaft can also cause vibrations, requiring shaft replacement. If the shaft is bent, oil will normally leak from the bottom seal. Confirm that the blades swing freely. Uneven wear on blade tips can also cause this, so weigh the blades to ensure the weight is within 1 oz. Finally, ensure both blades were changed simultaneously; always replace both blades together.


