HO Scale Lima Class 4F : Repair Request

Bob sent me some of his late Father in Law's locos to see if I could get them running again. One of which was this old HO scale Lima 4F. Merch - https://oobillmerch.creator-spring.com Support - https://ko-fi.com/oobill73561 FAQ - https://ko-fi.com/post/FAQ-C0C6E0UO4