Dyson big ball animal 2 vacuum (Welham Green AL9)

Purchased new in 2016 so 8 years old now. Has worked brilliantly over the years but recently seems to have lost some suction power. It's better when using just the flexible tube part and smaller attachments.
Comes with all the original bits and pieces as shown in the photos. The pneumatic cleaner head seems to have stopped adjusting itself to different floor types. The filter has been recently cleaned. The cylinder (ball) is scuffed in places and has been well used.
If someone fancies having a go at fixing it or can use it for parts, be my guest.
Collection from Welham Green AL9.