There is noise when the blower rotates in situ.

Does the subject want to ask what is the reason for the noise of the blower spinning in place? There are four possible reasons why the blower makes noise when it rotates in situ:

1. Friction between blades and casing: When the fan is running, there may be friction between blades and casing, resulting in noise. This situation may be due to the long-term use of the machine, resulting in a large gap between the blade and the shell, which requires replacement of accessories or maintenance.

2. Engine failure: The engine of the ground blower may fail, such as poor ignition system and insufficient gasoline supply, which leads to unstable engine operation and noise. This situation requires inspection and maintenance of the engine.

3. Loose parts of the ground fan: During the long-term use of the ground fan, parts may be loose, such as fan blades and engine hood, which may cause noise. This situation requires timely inspection, fastening of parts or replacement of accessories.

4. The use environment of the blower is harsh: If the blower is used in a noisy environment, such as a noisy construction site or road, the noise of the machine itself will be more obvious. At this point, you can consider using earplugs or other anti-noise equipment to reduce the impact of noise.