need to replace heatsink and fan

posted this earlier in wrong place but here goes

my heatsink fan has crapped out on me and i need to replace it but i don't exactly know how or where it hoocksin below the print head I was wondering if anyone has had to do this yet.

i have a replacement fan and heatsink on back order (don't get me started its been on back order for over a month) thanks solidoodle

also if anyone is wondering the USB connector is very easy to replace with a standard connection