, April 1982. Unfortunately, these locomotives suffered from two distinct problems: • During the late 1950s and early 1960s, following the publication of the
Andrews Report (mimicking the widescale
Beeching cuts in Britain), CIÉ undertook large-scale closures of branch lines, leaving the engines without a purpose. • The locomotives were of insufficient power for their duties and their
Crossley engines suffered reliability problems. The existing Metro-Vick traction motors and generators were recognised as robust and retained in the rebuild.
Replacement engines: Because of the problems with the Crossley engines attempts were made to fit the locomotives with more suitable equipment. Between 1965 and 1980,
Maybach MD650 engines of were fitted in Nos. 233 and 234. From 1969, however, a permanent solution was found by fitting the entire class with
General Motors engines, a similar process that was previously undergone by the
001 Class).
New Duties: From 1969 the class were given new duties, being partnered with former
2600 class diesel multiple units converted to four-car
push-pull carriage rakes to operate the suburban services around
Dublin. In 1984 the Dublin suburban lines over which they worked were electrified and new
electric multiple units known as the
8100s operated the newly named
Dublin Area Rapid Transit (DART) system. The first member of the class to be withdrawn was No. B201, being bomb damaged in 1973. The remaining members of the class, except for the six sold to NIR, were withdrawn over the two years following the opening of the DART system having completed 30 years service for their operators. ==Numbering==