i have the 1136 model it is a comb blender and chopper if i had the partslist I could find out the part number for the blade drive transmission ( part that the blade sits on) It works but as soon as you put something in it it stops spinning. Can't figure how to open it it has only one philips screw and taking it out does not let you disassemble it to see what is wrong inside. It must have cluch that is worn