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Unread 05-02-2016, 05:50
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Uber Alien
AKA: Mike 1
FRC #4004 (M.A.R.S. Rovers)
Team Role: Coach
 
Join Date: Jan 2009
Rookie Year: 2009
Location: Michigan
Posts: 166
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Re: KoP TB Mini- Transmission Seizing

We've had a similar issue where one gearbox was nice and quiet and the other one super noisy and ran much rougher. Turns out the gears on the CIMs were meshing too close with the large input gear. Apparently the CIMs are known for having sloppy tolerances (mounting holes can be slightly off-center) when it comes to the mounting holes and some are worse than others. Rotating the CIMs 180 degrees made our noisy gearbox run nice and quiet.