[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR229.91] [Page 435] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 229_RAILROAD LOCOMOTIVE SAFETY STANDARDS--Table of Contents Subpart C_Safety Requirements Sec. 229.91 Motors and generators. A motor or a generator may not have any of the following conditions: (a) Be shorted or grounded. (b) Throw solder excessively. (c) Show evidence of coming apart. (d) Have an overheated support bearing. (e) Have an excessive accumulation of oil. Internal Combustion Equipment