hi; has anyone worked on a magikoter dynamite model # dr520 hi-pressure paint sprayer? i loaned the one i had & it was returned non working, the hose & head a clear, it looks rusty inside the pump. thanks
Never heard of it. But, you have more than likely diagnosed the problem. Rusted internal parts, from inadequate/no cleaning/lubricating after use. If you don't clean/purge the system properly it won't work.
Take it apart clean/replace parts as necessary and don't loan it to that guy again.