ICU Medical Plum A+ Infusion Pump Module Tear-Down! 

Learn a lot by finding out on your own. In days past one could get a full service manual and parts from the mfr.

As I'm watching you try to take the pin out after you took off the door clip... Just open the latch and the door comes right off. But I'm sure in the video I will find out why you're trying to take the pin out. I've never had to myself.