Shark Lift-Away Vacuum Cleaner with Attachments - Working but Needs Attention

I was a fantastic Hoover but not i feel sorry that i don't know what is the issue. Shark Lift-Away Vacuum Cleaner NV601UK 31 – Sold as Seen. Shark Lift-Away Main Body (Motor Unit Only). This vacuum cleaner is fully working, but it makes a strange noise in two specific areas (clearly shown in the photos).

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