Setting Up On Level Ground

As RognBon said, if it is a later model Monaco coach, slides go out first at ride height and the you can level. I think this procedure started in the late 90's but would need your model and year to be sure. Also, if you have air-leveling only and not jack leveling, the procedure can be modified according to Monaco. We have air leveling and always put the slides out first and then level, just to be sure they don't get into a bind. The reason Monaco does this is because of the manufacturing process where they install the slides when the coach is at ride height and not necessarily level.

Edit: Just reviewed your profile and see that you got the 06 Essex. Very nice coach. Congrats on your purchase. Your procedure to put out the slides is probably different than Monaco but call and find out for sure.