Reply to "Bringing a unused locomotive to duty?"

I am not familiar with the #8210, does this locomotive have SPUR gear or WORM gear drive?

If it is SPUR gear driven, then not being able to turn the drivers by hand would be a reason for concern, if it is WORM gear driven, then BEING ABLE to turn the drivers by hand would be a reason for concern. The nature of a worm drive does not allow the drive train to "Back Drive" the motor. While that is not the reason for the use of a worm drive in model trains, there are applications where a worm drive is used specifically for the reason of the gear drive acting as a load brake when the motor is not powered, winching and hoisting applications are examples of this.

If it is a worm drive, then I wouldn't be concerned about not being able to turn the drivers by hand, put some power to it, and see if it runs as it should.

Doug

3/15/178:18 AM

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