Help Tranmission Flush 89 XJ LTD

Hi:

I have an 89 XJ LTD with the 4l I6, Automatic with SelecTrack and I'd like to do a Transmission flush. I've found lots of good information on this site but I'm not clear on how the lines from the transmission cooler disconnect at the transmission housing.

• Where the lines meet the transmission, there looks to be some sort of 'wings' (for lack of a better description) on the line that seem like if I were to pinch and pull back (or is it push in?) on them with my fingers, the lines will disconnect - does that make sense?
• What size hose do I need to slide over the end of the line so that I can watch the colour of the fluid flow out?
• Do the line 'connectors' need to be replaced once they are disconnected or can they be re-used?
• If I disconnect the lines how can I clean the connection ports to ensure that I'm not pushing dirt back in when I reconnect the lines?

Thanks for any advice.