Need Help please?

when I was cleaning my trumpet the valves got stuck and i can't play it. when i put the first valve, it works. Then the second, so far so good. Lastly, the third it gets stuck. Can anyone help me with this?

valves have valve guides, they look like a notch inside the valve cylinder. then on the valve stem itself there is a notch/tab that goes into the guide(put tab into notch or else your valve gets stuck!!! )