Unscrew the 2 front corner screws and the front bumper can be removed
2 very rusty wheel axles prised out and the front wheels may turn again...
With some more screws removed the motor housing part comes apart
More grotty wheels and the sealing strip for hard floors come off too
The clear part unclips from the pivot points at either side
Then the motor can be unplugged from the main part of the brushroll. This does not break down any more, but washes whole nicely without the motor fitted
The motor drive chain breaks apart via these two screws
The extension shaft will just need a dust down and fresh oil applied, the brushroll drive cog can unscrew and be carefully removed to dig all the hair out of the bearing that sits underneath.
Once all cleaned, washed, polished etc it can be laid out
And re-assembled, starting by rubbering up the bin flap once more