[dmorse68]

Air in the system takes many, many cyclings of both the landing gear, as well as all the hydraulic slides to purge out. According to Lippert, there is a very specific way to do this. I discovered this when I had a hydraulic hose blow off from a bad crimp job. I lost a couple of quarts of fluid, and got air in the system when I install a new hydraulic line. When I contacted Lippert, I received a very specific set of instructions to cycle the hydraulic system in order to purge all the air out of the entire system. I believe it goes like:

1) Fill hydraulic reservoir with recommended fluid 1/2” from top of tank. Wait until air has settled in tank from filling. Air is indicated by a lighter, pink color of fluid in the tank.
2) Hook up truck to trailer to support the 5’er
3) Extend DS slide out.
3) Extend ODS slide out.
4) Extend Landing gear (fronts)
5) Extend Leveling Jacks (rears)
6) Wait to move on to next steps until air has settled out of tank.
7) Retract everything by reversing the above order
8 ) Wait for all air in tank to settle and dissipate in reservoir before repeating above steps.
9) Repeat above steps as necessary until all air is purged out and not seen in the reservoir anymore.