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Assume your system works like my hydraulic auto level system. Power on system, hit up arrow then enter key to get to manual mode. Then you can hold front button to lower the landing gear to start the process of unhook in from tow vehicle. The lighted led on panel tell you what part of trailer is low. When truck is clear of trailer, you can go into auto level mode by powering system off, then back on and hit auto level button. OR you can continue by doing a manual level by hitting rear button and holding to lower rear jacks. Once all jacks down, hit and hold appropriate button to make the "low" led indicators go out.
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