how to use leveling jacks

[Traveler0]

I am a newbie to a 2005 Georgetown 375xl, have used the leveling jacks 2 times with no issues, the third (always the charm, right?) time, I tried to raise the front 2 jacks together, ending up cracking the passenger windshield (the wife was......not happy). maybe I just don't know how to use the leveling buttons, the buttons are in a diamond shape, I assumed that to raise the front 2 together the top button would do the job nicely, it didn't. as this unit is 8 yrs old (with only 8k miles on the meter), is it possible that there is contamination in the hydraulic lines? Thanks to anyone who can help.

[cfsoistman]

Lippert Levelers Troubleshooting Tips.pdf

Here's some info on the Levelers. I'm not 100% sure that FR used Lippert Levelers in 2005 but in case they did here's some info.

Leveling & Stabilization LIP Sheets

[Traveler0]

thanks, the only logo on my control unit is a 'lci' and in NOT automatic.
Darrell