Yeah, I'll have to do some maintainance work on my feeder, too. The "hut" has come loose on the pole after 2 years outside, so I need to look into that. Sure that will get the birds startled, but it has to be done. I do this a bit later in spring, when they can find food elsewhere.
Btw., your feeder looks very high tech somehow, like a vending machine for birds. :) I guess it wasn't cheap? My one is just a open hut made of wood, on top of a wooden pole. The birds don't mind - as long as it has food inside. :)