jlg 800s leveling problem

1. #1Rentalmechanic2016-10-25 20:17

   Will need more detail if you want help, if the basket self leveling isnt working ? Usually the master or the slave is bypassing internally in the cyclinder themselves i usually get both repacked just cause no real way i found to see which is the cause but thats the only cause unless your relief is turned down at the main manifold

2. #2boomtech2016-11-06 05:08

   The 800S uses angle sensors mounted by the rotator,there is no master cylinder on that machine.....do you have a JLG analyzer?....Chances are the cable that goes from the sensors to the upper control box is damaged.....also is the unit have a fault light on