The reasons why lawn mowers vibrate violently at work are those

Lawn mowers Among all garden tools, lawn mowers are the most widely used and most used. The frequency of use such as chainsaws, high-end chainsaws, and brush cutters is slightly lower.

What are the reasons for the lawn mower to vibrate during work?

A, the blade is bent or worn out of balance;

B. The crankshaft is bent due to impact;

C. The cutter is damaged, causing the blade to rotate relative to the crankshaft, causing an imbalance;

D, the engine fixing screws are loose; E, the engine base is damaged.