She lost resistance at half way cylinder height and came slowly down. Had not noticed fluid level in tank was low. I really think I introduced air at that point. I did not try running pump over n over after she would not lift. So added fluid to tank...tried 1 more time running pump but still no lift. So how can I bleed the air from system if that's the problem? Dont see any bleed points. I see the high pressure side connected to the low cylinder side n the other line to top of cylinder. Hoping yall can help me figure something out. She was running fine. Ty in advance