no oven cleaner will not work on powder coat the best thing that works is "stripper in a can" heres a link:http://www.homedepot.com/h_d1/N-5yc1v/R-100135467/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
ok the last picture is the correct order and the bottom half goes into the bottom insert of the deck and the top half goes onto the top insert of the deck like this
http://www.youtube.com/watch?v=6cBlvdhn6UU