Iron Ore Line
In the 1980s, the majority of the remaining Dm class locomotives were moved to other locations on the SJ network, leaving the Dm3 class locomotives to operate the Iron Ore Line. All of the Dm3 and several Dm class units passed with the Iron Ore Line to the private company MTAB in 1996, with the remaining Dm class units being reclassified Dm2. With further increases in train size, MTAB decided to order new locomotives to replace the older Dm2 and Dm3 units. With the arrival of the first new IORE locomotives in 2000, the entire Dm2 class were removed from service along with several Dm3 class locomotives. In 2004 one set was donated to the heritage society Malmbanans Vänner, who also own one of the similar-design Norwegian El 12 class locomotives as used on the Iron Ore Railway. MTAB have since agreed that the remaining Dm3 class locomotives will be retired in 2011, when enough IORE locomotives are available to relieve them.