Unplug CN100, see page MP85.040C. Be careful to not twist the frame of the vehicle while operating the leveling system manually.
Only operate one set of LOWER then RAISE buttons at a time.
Push a LOWER (Down Arrow) button. Hold until all of the air is exhausted from the airbags. Check that the appropriate airbags are completely deflated. Push the corresponding RAISE (Up Arrow) button. Check that the appropriate airbags have inflated raising the vehicle. Repeat this process for the other three sets of LOWER and RAISE buttons.
When pushing a manual button, it will always operate two corners of the vehicle at the same time, both front, both rear, right front and rear or left front and rear.
NOTE: FOR VEHICLES EQUIPPED WITH A TAG AXLE.
The tag axle manifold valves work in conjunction with the drive axle manifold valves. The tag axle manifold raise valves are tied together in the harness with the drive axle manifold raise valves. The tag axle manifold dump valves each have its own relay on the output board in the control box. When pushing either side LOWER button, there will be three sets of yellow and red LED’s. When pushing the rear LOWER button, there will be four sets of yellow and red LED’s. When pushing the front LOWER button, there will be two sets of yellow and red LED’s. When pushing any RAISE button, there will be four sets of yellow and red LED’s. This includes a red and yellow LED for the auxiliary air compressor on each output board.
