Answer Hello Ugo. You will need to remove the lower spray arm and the cover off the sump assembly. Once the cover is removed, you will need to remove the cover over the chopper blade. You can now access the chopper. Pull upward on the blade filter and the chopper W10083957V will lift out of the sum assembly. Reinstall in reverse order. Hope this helps. Read More... Answered by AppliancePartsPros.com | Wednesday, August 17, 2011