I was about to head out and change my accumulator to the one i recieved from prior remanufacturing. And I am wondering what is all entailed? From what I got so far, I shut the car off and pump the brakes until they are rock hard. Then just unscrew the accumulator. I dont' want anything shooting out at me. Will it just unscrew by hand? And Do i have to remove anything else to take it out? Any help is appreciated. Thanks.