It's an option that many HiLos have installed on their lift pumps. It's basically just a hydraulic pump that you work by hand. If you have it, you just stick a rod/handle into a receptacle at the front of the pump and then just move it back and forth to raise the top.
I used mine to get the top about halfway up so that I could access the battery once when it became discharged. I didn't think it was too hard to use, but I was younger then - only about 67 years old. Now, at 82, I may have a different opinion.
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew