The Class 34-400 type GE U26C diesel-electric locomotive was designed by General Electric and built for the South African Railways by the South African General Electric-Dorman Long Locomotive Group. One hundred locomotives were delivered between April 1973 and November 1974, numbered in the range from to.
Distinguishing features
As built, the GE Classes, and South African Class 34-900| locomotives were visually indistinguishable from each other. The Class locomotives could be distinguished from the other series by the air conditioning units mounted on their cab roofs and initially, when it was still a feature unique to them, by their running board mounted handrails. At some stage during the mid-1980s, all Class, and locomotives had saddle filters installed across the long hood, mounted just to the rear of the screens behind the cab on the sides. Since then, Class locomotives could be distinguished from the older models by the absence of the saddle filter.
Modifications
Fuel capacity
As built, the Class had a fuel tank and interlinked bogies, while the Class was delivered new to Iscor with a fuel tank to cope with the lack of en route refuelling points on the Sishen-Saldanha iron ore line. To facilitate the larger fuel tank, the inter-bogie linkage found on all other models had to be omitted on the Class 34-500.
To be usable on the iron ore line, Class units which ended up working there were modified to a similar fuel capacity. The inter-bogie linkage was removed and the fuel tank was enlarged by changing it from saddle-shaped to rectangular box-shaped. To maintain its lateral balance, a slab of metal was attached to each bogie in place of the removed linkage. In the second picture, the weld lines on the end of the enlarged fuel tank as well as the metal slab at the end of the bogie are visible.
Beginning in 2010, some units were equipped with electronic fuel injection and GE "Brite Star" control systems. On some of the first locomotives to be so modified, externally visible evidence of the modification is a raised middle portion of the long hood.
Service
South African Railways
GE Class work on most mainlines and some branch lines in the central, western, southern and southeastern parts of the country. On the busy line from Krugersdorp via Zeerust to Mafeking, the Class 34-400 became the standard motive power. Some eventually joined the Class on the Sishen-Saldanha iron ore line, to haul export ore from the open cast iron mines at Sishen near Kathu in the Northern Cape to the harbour at Saldanha in the Western Cape. Here they ran consisted to electric locomotives to haul the 342 wagon iron ore trains. Each wagon has a 100-ton capacity and the trains are at least in length. In South Africa, mixed electric and diesel-electric consists are unique to the iron ore line.
Leased and sold
Eleven Class were leased to the Kenya Railways for some years, regauged to and renumbered in the range from 9501 to 9511. They were returned to Spoornet in April 2002. Several Class were sold into industry. No. went to the Douglas Colliery near Witbank as no. D10. Five went to Sasol at Trichardt near Secunda and two to Blue Circle Cement at Lichtenburg. No., with the bodywork removed, is used for apprentice training at the Germiston diesel depot.
The Class 34-400 were all delivered in the SAR Gulf Red livery with signal red buffer beams, yellow side stripes on the long hood sides and a yellow V on each end. In the 1990s many of the Class 34-400 units began to be repainted in the Spoornet orange livery with a yellow and blue chevron pattern on the buffer beams. At least one later received the Spoornet maroon livery. In the late 1990s many were repainted in the Spoornet blue livery with outline numbers on the long hood sides. After 2008 in the Transnet Freight Rail era, many were repainted in the TFR red, green and yellow livery.
