تماشای ویدئو Lenovo ThinkPad R61 disassembling and fan cleaning разборка и чистка ноутбука از آی-ویدئو
This video show Lenovo ThinkPad R61 disassembling and fan cleaning.
All necessary steps presented here: starting with bottom cover remove, ending removing motherboard fan. However you can ask a question if you have the one.