In the LOTW thread I posted my work on an AHM S-2 AHM Alco. One of the issues that I struggled with was cleaning the power pickup wheels in the front truck. I ended up swapping them with a set from a dummy unit that appeared to be unused, but I don't like throwing things into parts storage that need work, because it will frustrate me when I pull them out later. Here are the original pair.
Not being familiar with AHM wheels, I'm looking for insight and advice since my normal usually reliable methods of wheel cleaning did not work. I believe I am seeing the coating worn off and the wheel will not be 100% shiny again. However, I believe that there is dirt in the worn section of the wheel as well. I'm tempted to pull a wheel off and put on a mandrel on my Dremel and attempt to polish it.
Before I take this step, I thought I would ask for the group's advice on techniques they use for cleaning this type of wheel.
Operating the Medford & Salmon Harbor Railroad (M&SH) - "The Harbor Line"
Have never noticed any problems, as bad as it may look. With the 'shiny' wearing off, you will get better traction. Sounds like a smarty-pants comment but I have read of many old-school modelers being quite happy when the wheels started to lose their plating.
I once supplied JF with some new Athearn loco wheels that were highly polished NS, to replace some old sintered wheels. As I recall, he lost a lot of traction!
I usually clean them with a Dremel wire brush.
The JNXT Family of Transportation Companies:
JNXT Railroad "The Weasel Route" BRTX Railroad "The Buzzard Route" P&S Railroad "Don't blame us, this isn't our equipment" The Buzzardly Shops "Your GOO Headquarters"
Post by frankenstein on Jun 28, 2020 18:14:01 GMT -5
The wheels are brass with a nickel plating, so if they're wearing it just means someone has enjoyed running the loco quite a bit! Wipe some oil on the treads to soften the crud, then use alcohol on a tissue to clean the wheels. I sometimes use an eraser or x-acto blade if they're really bad.