EMD GP40-based Passenger Locomotives - GP40MC

GP40MC

The Massachusetts Bay Transportation Authority currently owns and operates a set of 25 GP40 passenger diesels known as GP40MCs. They were originally built as GP40-2LWs for Canadian National in 1973-75. In 1997-98, these 25 units were very extensively rebuilt by AMF. In this rebuild, the units were given Cummins K19TA HEP Generators, flared radiators, computer monitoring devices, and a modern desktop cab. However, the prime mover(engine), main generator and traction motors on these units remained the same. Although they have been traditionally held on the North Side, these locomotives can also be seen occasionally on the South Side of the MBTA system. They are still in frequent use. However, they have always been plagued by computer malfunctions and HEP Generator failures, since the units were originally used for pulling freight trains. The turbochargers, main generators, prime movers and traction motors have also not been very reliable given their original age. Currently, the GP40MCs are undergoing a Top-Deck Overhaul by the Norfolk Southern Railway, which includes repair and modification to the major propulsion systems and the HEP Generators. Locomotives 1116 and 1119 have been modified to be used as switchers as well as passenger units. These units also feature steps in the middle of the engineer's side of the units. A lower, larger step was added to the bottom of the steps on the front and rear platforms, and rear ditchlights were put on.

Read more about this topic:  EMD GP40-based Passenger Locomotives