I have acquired a KitchenAid Heavy Duty 5-quart 10-speed Mixer model #5KPM50, which has a European-style 240v plug. I know there are converters available, but I want to replace the 240v plug with the standard 110v plug used in the USA. Can I replace just the plug or should I replace the plug and the cord? Will it cause problems for the motor if I do this? Thanks for any help you can provide!