I recently purchased a 2008 ZT 250 RK. It has a Winegard antenna that won't raise. If feels like the gears are stripped. I would like to replace the elevating gear and worm gear but I need the model number of the antenna. How can I tell what model I have so I can order parts? Looks very similar to the new model called the Sensar III. Trailer is a 2008 model.
Can't you take the bottom off and see what shape the gears are in before ordering?
Just to be certain that's the problem.
Dont think you cant see much from bottom. I'll dig out the drop light and take another look before I get up on top. I'm pretty sure the elevating gear and/or worm gear are stripped judging by the feel and given the fact that the thing wont raise up. Plan to spray some silicon on gears to see if that will free things up and go from there. I may try to lub from bottom with "straw" that comes with silicon spray. Dont think I will be able to reach gears to spray without getting silicon all over everything. I figure somebody neglected to lubricate and tried to force it and stripped the gears. Once up on top if lubing does't help looks like it should be easy to remove both gears to inspect. I dont think there's much else it could be. Looks like a pretty simple system. Only other thing I can think of is maby something is loose rather than stripped.
Was able to see the worm gear from inside camper but it was way up inside. Didnt think I could reach it well enough to spray with silicon and not get it all over everything. Got up on top and found the process was as expected. Pulled the two pins that hold the uprights to the base. This disengaged the elevating gear from the worm gear. Then removed the hex headed cap and the worm gear/shaft pulled right out (had previously remove elvating crank inside camper). To my surprise both gears looked pretty good. I just sprayed both gears and the rotating base with silicon and replaced gears. Cranked it up and down 3 or 4 times and it seems to work well now. If you have a flat roof you could most likely lub from the inside and not have to get on top of camper. With arched roof I think it would make a mess trying to lub from insdie. Worked out well doing it from the top. Just have to be careful and not fall off or damage rubber roof.