I also had the same question about the 6 pt level up and when going through the auto level depending on the level of the site we were sitting on, at times one or two of the tires on the same side might be slightly off the ground. (you could rotate by hand). I called Lippert and the tech told me the tires need to be on the ground. The 4 rear jacks are no different than crank up stabilizers and tires should not be lifted off the ground by the level up system. He told me to reconnect and drive up on boards or pads on the side that the tires are off the ground to avoid this. I told him I was only going to be at the site a couple of days and he still advised to drive up on boards or pads. Wish we could get a consistent answer to this question...Maybe a Lippert Rep could answer this at a Rally and someone could post the response? Nice system but do you still need to drive up on wood/plastic? Kinda defeats the purpose.
What that lippert rep told you is absolutely wrong - unless lippert has re-designed the system contrary to what the original product was - and I doubt that.
Take it for what it is worth, many of us that have had the LevelUp for a few years spent a lot of time with the engineer and designer of the system, as well as the first people who were certified to install it.
For the most part we have the add on system, installed prior to it being an option from the manufacturer. Keep in mind though, most of the comments are based on the 6 point system, not the short lived 4 point LevelUp installed when the factory option first came out.
The jacks are rated for 14,000 pounds each (although I really don't think the pump is capable of that)
The system is designed to not twist the frame
If you take the time to watch the auto level in operation you can see that multiple jacks move at the same time. Some extend, some retract, but they don't twist the frame.
It is legalese in the all the paperwork that stipulates not to lift the trailer off the ground.
That alone is contradictory to the basic operation of the system. There are many times that in order for the trailer to self level, one or more tires will be off the ground.
Providing your trailer has been calibrated to level, what one or more tires off the ground means is that the ground is not level.
If it makes you feel better to have the boards, by all means, go ahead, it will not hurt. But, you can accomplish almost the same thing by using the manual mode and just extend the jacks enough to level the rig.
Actually, manual is what I do most of the time, as the auto level tends to exaggerate the lift needed. And since it starts the leveling process by raising the left side, the final level tends to be a bit high on the door side. This is not a defect, just the nature of how the system works.
BTW - crank up stabilizers are for stabilizing only, no lifting. LevelUp is designed for lifting.
The boards I used for leveling prior to my install became firewood.
The 4 bundles of the yellow lego blocks I also used - someone at work got a good deal on them.
