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Reply to "Whistle tender motor problem"

Check the hole size in the fiber brush plate. It should be about 0.126" when new. The armature shaft is 0.125" (1/8").

My guess is that the hole worn too large and the armature is contacting the field plates. The good news is the the opposite bearing in the whistle box is a real one and is probably fine. No need to remove the armature which requires popping out the whistle box backside rivets.

You can repair by purchasing a new brush plate (~$6) Or by drilling out the fiber brush plate armature hole and fitting a real bearing. There is a bearing, part number OM-3, that works nicely for this BUT they don't seem to be sold by any parts dealers that I could find. They are used on at least 1654, 1655, and 1656 locomotives as the armature bearing opposite of the brush plate.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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