I'm posting info about my power gear slideout system. It's just FYI as yours might work the same way, or maybe not. There's an indirect torque limiting system via a controller that senses current. The controller is p/n 140-1163 and a picture can be found here
https://www.amazon.com/Power-Gear-Slideout-controller-140-1163/dp/B01IF99SCI. It has a 25 amp slow blow fuse in it. The only way I know about it is from extensive snooping in every nook and compartment in the RV. Do you have a center-off in-out switch? Does it have 3 wires going to it? Are the wires going to the motor larger (or at least different) than those from the switch? If this is all true, you may very well have this controller hiding someplace. It has 6 connections: power and ground, 2 wires from the switch, and 2 wires to the motor. On the controller I have, there are no adjustments.