Originally Posted by Papashaps
OK so mine has a spring on each end, and there is no end cap to turn. There is a small metal rod that inserts into the end brackets and it is between those two that the cotter pin goes in. So it seems as if I turn each of those rods and it does load the spring. I am just not sure if I do it with the canvases rolled out? does each spring wind the same way? how I hold it in place etc. I would upload a pic but since I am a new member not allowed to do attachments yet....
Sorry that my Slide Topper Sagging pdf file didn't properly load. It was a thread by member Old Coot. Here it is again, hope it works this time.
If your topper is on the rv you don't want to have the slide fully extended. 8 to 10 inches should be enough. You turn the center shaft, not the end cap. If the topper has springs on both ends, looking at the end of the tube one end will tighten by turning it clockwise, the other end will tighten turning it counter clockwise. See AE_topper adjustment.pdf from post #5, page #4, Section #8, Figures 10A & 10B.