Dyson V10 (or 11) animal (GU6 7NH)

All working EXCEPT I've gummed it up with asking it to do more than it likes (building work!). I've done my best to unclog it, but the 'blocked' light is on and the suction pulses. Given up and bought a Henry. Free to anyone who wants to have a go at restoring it. All the accessories, had a new battery pack not that long ago.