Originally Posted by LeNe4847
Are their internal seals in the operator? How hard are they to replace?
From reading my Winegard Sensar Antennas Operation/Installation Manual - All Models
, I believe that there is a o-ring seal on the upper gear assembly where it rotates on the base plate and that there is a rubber ring on the crank handle assembly below the worm gear. Then, there's the rubber boot on the coax where it goes into the base plate (my coax does not and is routed through another roof location).
I have not replaced these seals, but I do lubricate them as recommended to minimize their becoming brittle and leaking. Access would be from on your roof. Perhaps, you could decide on the difficulty after looking over the parts page in your antenna manual. It does NOT have disassembly instructions to guide in this. Here's a couple pics from that manual.
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