Question: Body vibrated badly


Cause analysis:

  1. Insecure suspension of main engine.

  2. Fan installation is not in place.

  3. Fan damaged.

  4. Loose hand nut.

How to do:

  1. Make sure the main engine is firmly hung.

  2. Install the fan in place.

  3. Replace the fan ( contact the after-sales service center).

  4. Tighten the hand nut to ensure no loosening.

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