Jayco Melbourne slide manual crank location

I know this is not what you want to hear, but i have a 36RLTS. I don't have a crank location! I was told I have to use an adjustable or open end wrench, and turn shafts at hand speed, while on my back, in the mud, or snow, or rain. I think I would rather call a mobile repair. Depends on the shape of my body at the time.