The claw has a bunch of parts to it. Does it not even move, even in test mode, or just not work during the game? To get to test mode, open your coin door. Press the rightmost of the four buttons on the inside until you see it say "B. Bookkeeping". Then press the third button until it says "T. Test". Press the fourth button. Then you can use the second and third buttons to move between the various tests. Press the fourth to select a test.