It's not the gear it's the classification resistor that was causing the issues, so it might be something similar on his. But that's just a swag.

I should have mentioned that it's part number 3 in the diagram

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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course