Physical description
Instruction - 4 pages - duplicated foolscap sheets - headed "MMTB Engineering Department - Workshops and Running Shed Branch" - titled "EECK1 (Clyde) Controller Maintenance - Electrical Mechanics Procedure"
Details electrical work to be done on the rostered day in for EECK1 (Clyde) controllers, safety, checking, when to replaced and additional work to be done on the 4th and 12th rostered day-in service.
Dated May 1970.