Makita · Power Tool Manual
Abnormal vibration can occur if the blade is imbalanced or excessively worn.
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Unplug the tool from the power source.
Carefully inspect the blade for any visible damage, chips, bends, or excessive wear. Also, ensure the blade is securely attached and tightened correctly.
Clear any saw dust or debris from around the blade and inside the guard area, as this can sometimes cause imbalance.
Plug the tool back in and test it briefly. If the abnormal vibration continues, immediately stop using the tool and unplug it.
If the vibration persists after these steps, or if you are unsure, contact an authorized Makita service center for professional inspection and repair.