Raymarine x-5 autopilot ball bearings not staying put

Apr 19, 2011
456
Hunter 31 Seattle
Hello,

I recently replaced the wheel pilot on my st4000 with the newer raymarine x- 5 unit (used) but it has problems with the ball bearings keep falling out! Im debating on buying a brand new unit. Anyone know what could be the problem with the old one? this a common problem?

Thanks,
-Jared