front jacks

I have a 2006 Carriage 5th wheel I bought new and I did the front jacks a little differently and it was very much easier. On mine at the top of the leg is a plastic cap that covers the gears. I pull the cap and make sure their is plenty of grease in their. Then when I first got the RV I drilled a small hole in the side toward the top of the square tubing that houses the shaft. The hole is just big enough to put my oil can in and touch the shaft. I put synthetic gear oil in the oil can. I squirt the oil on the shaft and let it run down. then I run the front jacks up and down. I squirt some more oil on the shaft. The next day it has made its way down and has run down on the bottom leg. I wipe the excess off and that is it till next time. Been doing that for 14 years now.