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There were some issues with the gear box.  My first one went back to Lionel after less than one month because it would stall and the cab light would blink.  It made 3 trips back and forth.  Finally someone from Lionel called and asked if it was okay to replace it.  The replacement lasted longer but still balks from time to time.  A little push at startup will get it running.

The problem seems to be related to gear lash.  You can rock the locomotive back and forth 1/4” to 1/2” when it is stopped.  I would love to know what they changed and whether we could retrofit that change.

@c.sam posted:

Is this issue present on the original JLC series?  Have not heard of this prior to this thread.

I have two JLC GG1's, and I've worked on a bunch of them.  I've never seen any gearbox issues with those.

This is probably like the Legacy Mogul, they took a perfectly good gearbox design in the TMCC Mogul and screwed it up for the first Legacy Moguls.

Last edited by gunrunnerjohn

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