Observations about the limit switch that goes with that tool. I suspect your winch has the same limit switch as mine. This is boilerplate I use often:
The winch lift for the camper seems to be trouble-prone. There are two key weaknesses:
1) The relays that supply power to the motor do not seem to be outdoor relays, but they are exposed to lots of dirt and moisture. Replacement relays are readily available. I used silicone to seal the relay cases of my replacements. I don't know if that will improve their life or not, but the cases were not sealed, and both relays failed at the end of last season.
2. All use limit switches to stop the motor at max height and minimum height. (You can, of course, just pay attention, but the limit switch accommodates the inattentive.
) Some limit switches are simple. But mine was a bizarrely complex mechanism that only a mad scientist could invent. I spent 22 years in commercial broadcast TV, and all satellite dishes, microwave dishes, and so on have limit switches, but NOTHING like this. My limit switch is depicted in part #2 in this diagram. https://www.tesstools.net/P92001_Pop...rts_s/2463.htm
Mine is an orange cylinder, about the diameter of a banana and 6" long. It had an outer plastic gear that engaged with the main, steel lift gear. The plastic gear failed, AND the "key" and "keyway" that allowed the gear to engage the drive drum sheared off, too.
Since I do pay attention when I raise and lower the camper, and since the electric switches in the limit switch are "normally closed" (always on unless a small plunger is depressed), I disabled the limit switch. A straight piece of wire would be the same. I think it is a poor design, and, at $38 a pop to prevent stupidity, I'd no more replace it than shoot myself in the foot. In the harsh environment on the A-frame of a trailer, it's exposed to dust, dirt, pebbles, water and anything else that sprays up off your tow vehicle tires. I disassembled the device, made sure the numerous gears, shafts and so on were "neutralized" so they would not interfere with the winch operation, used a VOM meter to verify "continuity" through the switch - a continuous circuit - and put it back. I'll buy a new one for installation when I sell the camper one day.
3) The manual override works great so long as you have a good cordless drill (and perhaps a spare battery) to drive it. Hand cranking would take forever. It's easy, but way too slow. Lifting the camper roof with the hand crank might take an hour!! A cordless drill will raise or lower the roof about half as fast as the winch motor. All you need is one of these: https://smile.amazon.com/Camco-57363...er+jack+socket
And you can use your drill and this socket to raise and retract the stabilizer jacks, too.