Removing the Allen bolt's to change the Driver Wheels on a 6-18056 763e locomotive.

Lionel used loctite on many of these engines. You need to apply heat to loosen them. With a typical 35 watt pencil soldering iron hold it on the end of the screw for at least a minute. Sometimes even that is not enough. If you round the hex you may have to drill off the head and remove whats left with vise grips. BTDT. They are all right hand thread, counter clockwise to loosen.

The screw is a 3-48 x 3/8”. Likely not found at Home Depot but Lionel shows them.

Pete

That is what I figured. But thank you very much Pete for your reply. I just wanted a second opinion, before I damaged it. And caused myself unnecessary problems.

Pete’s above comments are 100% correct, the only thing I’ll add to the procedure that Pete recommended is to use a T handle Allen if you have one,...this will make it easier to apply down pressure for a more positive engagement into the Allen slots,...

Pat

Pat thank you for your advice. I will either buy a T handle, or a bit that will go on a 1/4 driver. Definitely need something with more leverage than a little Allen wrench.

Lionel shows one screw with the correct thread and length but it may be a phillips head. The one listed for the Hudson is NLA but S&W has them listed. That doesn’t mean they are still in stock though so try to save yours.
On the 18056 parts page the screw is described as a nylock but nylocks don’t seize up that way plus I have never seen a nylock that small.

If all else fails, McMaster Carr shows black oxide button head allens in 3-48 x 3/8 so no worries.

Pete

@Secarider if you run into a jam, I have spare Allen head screws for this application,....

Pat

Ok Pat that sound great, I will keep that in mind thank you. But hopefully with the right tool, and a little heat I can get it apart without damaging it.