I have a LEGO 7865 Red 12 volt train motor from a LEGO 7730 train set. The motor has stopped working as it has been dropped on one of the wheels.
How can I open the motor case to effect a repair?
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1Do you want to open the train unit or the motor itself?– MastDec 21, 2017 at 2:14
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I need to open the red case of the motor itself. I think that one of the gears has been forced out of engagement, maybe the shaft is bent,– RAP 77Dec 21, 2017 at 10:28
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2 Answers
According to Bricklink, Set # 7730 has this motor :
bb12va Electric, Train Motor 12V Modern Type I with 2 round contact holes
For disassembly and repair you can look at this large post with pictures on Eurobricks by Andromeda
Unfortunately, repairing it will not work, if the shaft is bent, as the wheel would just fall off again.
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1Replacing shafts is something routinely done on non - LEGO mechanisms. Why wouldn't it work here, if it's bent?– MołotApr 4, 2018 at 8:55