Trial Run

Before the trial run, add 30# mechanical oil into the turning decelerator until the oil reaches the middle position of the oil marker. (Oil shall be replaced once every 6 months.) Press the buttons to check whether the turning directions comply with the indicating signs of the switch. If not, adjust the phase-sequence of lines. Run the crane without any load for several minutes and the crane can be put into normal operation if the trial run shows no abnormal phenomena.