Adjusting WD hitch with load-leveling suspension

It is true to do it the way the manual says to do it.

Edited by fixit5561 - 20 Mar 2012 at 9:19am

First off - thanks for the replies!  I love all of the helpful information I have learned by reading and posting to this board.

I guess it would be hard to argue with the specific documentation on this subject.  Thinking outloud (or via keyboard) here is how I would see it working:

1) Connect the trailer to the hitch with the vehicle turned ON
2) The vehicles load-leveling suspension appropriately levels the load by raising the back-end
3) Snap up the weight bars to an appropriate amount (example: 4 links dangling free), causing the back-end to raise slightly because weight is transferred
4) The load-leveling suspension then automatically removes some air from the suspension to lower the load back to an appropriately level state

My primary question based on that is will the load-leveling suspension appropriately lower back to level in step 4?

My secondary question based on that is how do I know how many links to snap up on the weight bars, since I will no longer be able to use the vehicles front/back heights as a guide?  I am just over-thinking this?  :-)

So when I had my armada w/ the load leveling suspension, we could never get it to make sense.  We would measure and set and get our numbers to where we thought they were right, then we went and weighed the truck and trailer combo and our numbers were way off. Spent months trying to figure this out on RV.net.  Finally, it was stated that it should be done w/ the load leveling suspension turned off (and nissan says to turn it off) because the load leveling suspension was interfering with proper set up by trying to correct any rear sag the TT created.  Once we did the measurements w/o load leveling suspension kicked in, we were able to get it set up correctly (as per height measurements and weights).  Hope this helps.  I will see if I can find some of the old threads on it.

Anaro,

scottw- you need to pay attention to what the rear is doing as well.  You want the front as close to the original height/weight as they were without the TT without going lower than original height or heavier than original weight.  You want the rear as close to the original height as possible without messing up the front.  With months of experimenting with the armada with weights etc, we found that while the rear would end up approx level, the weights told the real story if we adjusted w/ load leveling suspension on.  Measure with load leveling suspension off and then turn it on.  Once we adjusted to the correct heights with everything off and then went and weighed it, that gave us the most correct measurements and weights. It was figured out both by us and some that have a large amount of expertise in the area (WDH gurus on another forum) that the load leveling suspension was really interfering with getting things set up correctly.