I accidentally broke the syphon elbow kit moving the washing machine

Simply disconnected 2 screws that hold on a metal cover plate for your arm to fit in.
Then disconnected 4 screws that hold the syphon in place, remove the syphon elbow and replace it with the new one, insert the four screws again and tighten making sure your arm is holding the elbow from the inside of the machine through the access hole. Then install access panel with the screws, do a test run with the machine pulled out to see if there are any leaks. Done.