Welcome to the forum, Greg!

First off, your transformer is very anemic. I would suggest stepping up to a more powerful transformer, such as a postwar 1033 rated at 90 watts.

Next, clean the track, all wheels and the pickup rollers on the locomotive with Naphtha to get rid of any dirt.

No pickup rollers on the motor truck is normal.

Get everything cleaned up and a bigger transformer and your train should operate normally.



Larry