I have a MPI 9448 cartridge drive that has a cartridge in it that I need to remove and I also need to prep the drive to be moved. Anyone know how to do this? I don't know if I can power it on or not. The power cord to the system has been cut off and was 3ph 220 anyway. If the drive just takes 110VAC 1ph I can probably get an extension cord to it. Otherwise I need to know how to get the cartridge out without power. Joe Joe, The top cover can be removed by taking out the two screws on the sides. Then slide the entire top cover (black) to the rear. Now you find the door release solenoid right behind the cartridge door. You can release it manually with a long thin screwdriver. You should be able to fold the door down, which will break the magnetic seal. By pulling the door down, the carriage assembly will move up and forward and the cartridge is riding on Teflon grooved rails via four pins. Just slide it out. If it is wedged or won't come loose, there is a worse case scenario to remove the entire carriage. Loosen the 6 screws on one side only of the carriage assembly. They are at the top on the sides. Don't take them out. The bottom of the carriage side can be pulled out enough to come off the guide pins and lift up and toward the front. There are two arms attached to the front door and the carriage. It is easier to remove if you disconnect the arms, but I've done it without disconnecting. I was factory tech support on these drives and the Hawk/Falcon/Lark for 10 years up to 1986. I may have a manual or two, but unfortunately don't have any parts. Incidentally, the designer of the 9448 is VP of engineering here at my new employer, WD. Billy Pettit