SM02 (model Ls40) is a Polish series of

diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engin ...

shunting locomotives used by PKP. 12 of the locomotives were introduced into PKP after 1954. It is the first diesel locomotive of Polish production.

History

SM02 was finally designed at the beginning of the 1950s and the production started in 1952 in

Fablok Fablok is a Polish manufacturer of locomotives, based in Chrzanów. Until 1947 the official name was ''First Factory of Locomotives in Poland Ltd.'' ( pl, Pierwsza Fabryka Lokomotyw w Polsce Sp. Akc.), Fablok being a widely used syllabic abbrevia ...

Chrzanów Chrzanów () is a town in southern Poland with 35,651 inhabitants as of December 2021. It is situated in the Lesser Poland Voivodeship (since 1999) and is the seat of Chrzanów County. History History to 1809 It is impossible to establish ...

. Before 1960 those locomotives were named Lo1xx in PKP, where xx stands for numbers. Those machines did not find much use in PKP, mainly because of poor performance features. Ls40 locomotives were nonetheless widely used in the industry. During the service S64L engines proved to be insufficient for the tasks of this locomotive, so a few last items had been equipped with more powerful S324HL motors. Meanwhile, several older locomotives had their engines replaced during servicing.

Preservation

Several items of Ls40 locomotive stay in service in industry, but they are being withdrawn systematically. Ls40-5438 engine serves as an exhibit in Skansen Parowozownia Kościerzyna museum and Ls40-4572 was bought by Polskie Stowarzyszenie Miłośników Kolei ( En.: ''Polish Society of Railway Enthusiasts'') from Grodziskie Zakłady Farmaceutyczne "Polfa" in

Grodzisk Mazowiecki Grodzisk Mazowiecki is a town in central Poland with 29,363 inhabitants (2011). It is 30 km. southwest of Warsaw. Between 1975 and 1998 it was situated in the Warszawa Voivodeship but since 1999 it has been situated in the Masovian Voivodesh ...

on June 30, 1995.

Technical data

SM02 is a B locomotive, which means there are two powered

axle An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearing ...

s under the unit. These axles are not articulated relative to other parts of the locomotive. The locomotive is propelled by a

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...

and the power was supplied to axles through mechanical

transmission Transmission may refer to: Medicine, science and technology * Power transmission ** Electric power transmission ** Propulsion transmission, technology allowing controlled application of power *** Automatic transmission *** Manual transmission *** ...

References

Railway locomotives introduced in 1952 Diesel locomotives of Poland B locomotives Standard gauge locomotives of Poland Shunting locomotives {{poland-rail-transport-stub