Re: Type C/UP trucks

Posted by Jim Courtney on Jun 24, 2021; 8:42pm
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Type-C-UP-trucks-tp15497p16790.html

This looks great, Michael.

On question--what purpose does the middle hole serve??  The outer two holes for wires is sufficient to support the brake beams. At 0.25" apart, two 0.019" wires support my brass brake beams quite well.

If the hole is for a wire for axle pickup for electrical power, I would move it:

I will use 0.012 or 0.015" phosphor-bronze wire for pickups. I'd prefer to run a single piece of wire through both transoms, soldering electrical wire to one end of the wire, just outside the transom (before inserting the wire thru the transoms).

Move the middle hole left or right a bit, out of the way of a screwdriver, mounting the truck to the bolster.

Keep that hole at the previous vertical height--the wire needs to touch the axles.

Make the hole smaller, 0.012 or 0.015", for the phosphor-bronze wire.


I've never added wire pickups to trucks--anyone have recommendations as to minimum wire diameter?