Hmmm....been looking around but couldn't really find anything about these old bell type actuators.
I'm refurbing my entire heater/AC box and while it's on my desk I'm thinking, everything here is 25 years old.
The actuators seem to function well enough by hand but, just for maintenance sake, is there anything that might
preserve them? What's inside those little things? I'm guessing no since there seems to be no oil tip or opening.
Just wondering if anyone's ever been down this road and what you did.

Thanks!
Andy.Raleigh

 

They rarely fail, and if you get new ones, they're probably made in china.

 

Thanks for that cruiser, they seem to work fine. Guess I'll leave it at that.