I have a Bachmann 2 truck Shay that has run very well in the past. It has run a few seasons with occasional re-lubrication. But over the summer the Bachmann lubrication products I have used (according to their video instructions) has really thickened up to the extent the loco is now hesitant to run.
I am considering trying to wash out all the old lubricant and apply new (i.e. a fresh start) but wonder about the best way to go about this. I am considering spraying the drive train with isopropyl alcohol and using Q-tips and small brushes to remove what is there. I have 3 questions.
Will isopropyl alcohol harm the plastic parts of this loco, or the finish?
Will isopropyl alcohol shift the lubricant?
Is there a much better approach / products I should be considering that others have used successfully?