Somewhere in your trailer there should be a "flexible extension" that fits into the drive motor and with an electric drill, you can manually open/close the slide. Here's a picture of the page in the service manual that describes the process. You can download the entire manual here:
https://balrvproducts.com/downloads/...ice-manual.pdf
If you can't find the flex drive extension, any RV dealership should have them in the parts department. The slide mechanism is used in virtually all brands of RV's, so it's not a "Keystone exclusive"....
OOPS: I glanced at your photos and without clicking on them, made the assumption that you have a cable slide. You don't... If you look at the second photo, you'll see a shaft coming out of the gearbox and a "roll pin" through the shaft. There is a slotted adapter that fits over that shaft and the slots engage on the roll pin to "grip the shaft". I've seen "drill driven slotted adapters" and manual "crank type slotted adapters". Trust me when I say it's much faster and friendlier on the arms to use a drill driven adapter.....
I also saw on another post an adapter of some sort to use attached to a drill. are these available at most RV parts stores? Thank You.
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