I was able to buy a cab 1 from a member of and for our club. It was new in the sense that he never hooked it up but when I opened it, after the purchase, and he is away, I found the batteries had leaked.
I was able to eventually get the battery door off and clean the green residue. I put new batteries in it and hooked it up and it worked. To me, the red dial knob does not turn smoothly. Also, the only TMCC engine that I had to test was my Weaver I5. I am not sure if it is the engine or the controller but the engine did not seem smooth nor did the brake or boost button work.
Can I spray it with tuner cleaner or do I need to take it apart?
Thanks