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UCS Helicarrier 76042 with Power Functions not working
I recently got the power functions for this set and installed them. The lights work fine but the motor only turns the blades for 30 seconds to a minute and it sounds really choppy. I thought that might have just been the way it is but someone one youtube has a video where it seems to run flawlessly. I'm assuming there's too much friction with the gear meshing. Did anyone else have this problem? And how did you fix it? I have been trying to loosen some gear connections but am not sure which ones are the most problematic.