Running In

[ntpntpntp]

It's not just Farish: certain Minitrix models are also known for split gears on the axles.  I've just ordered 5 complete sets of replacement brass gears for my MaK diesels.

I've also had splits in Roco, Arnold, and even a Fleischmann gear!

[silly moo]

Quite a few of my older Farish locos have worn out brass worm gears, must be a different type of weevil or something like brass munching piranhas