First:  My apologies to the group. 

Stan's reply is correct, the "4 buttons" I am referring to, which I was positive I saw somewhere, are on the back of the "Climax" not the "2 truck Shay".  I now have all three engines in my collection and are in the mist of opening up stored boxes and recent Ebay purchases with plans of building my second layout at my new home.  Thus some of the mix up.

Perhaps then, the newly acquired  "3 Truck Shay"  does not have these buttons but simply triggers the various affects (bells, whistles, and other sounds) based on direction of motion and speed while under DC power.    I also assume that those features can be controlled via the CV settings and proper programming while operating under DCC.

Do my assumptions sound about right?

So I checked around and found where the idea (image) came from, I saw it my "2 Truck" Shay manual and just assumed the same would be for the "3 Truck" shay.  Both models are from the 'Red box' era and are DCC and Sound equipped.

I'm new to the forum and need to learn how to attache images so I can share.

Yes, I did see those right off the batt and am aware of the 2 switches behind the front smoke box hatch.  Perhaps I'm looking for something that I'm mistaken and doesn't exist. 

I'll keep investigating.

Thanks

Thanks Hunt for offering your reply.  I have those schematics too but they don't show where the switches are located for choosing "Track Power" or "DCC", "Polarity", and I forget the other two.  I just seem to recall having seen a YouTUbe video (which I can't located anymore) which showed exposing these 4 switches.

Still need more help.

Can somebody show a photo or simply tell me where they are.  I don't want to go 'prying on parts' to try and discover them.

Thanks

I purchased a second hand unit which came with no information.  Dumbest question, but where are the 4 switches to control the engine?  I thought they were hidden behind the sand boxes on rear water tank but I'm not able to get either those off.

Thanks in advance for your reply and help.

Thank you kindly Kevin for your quick response.

I want to size my sound decoder correctly and need to know what max amp draw is from this engine.  I do not have the specs for it as I bought it second hand.  Please help by indicating the amp draw of this G Scale, 2 Truck Shay unit.

Thank you.