View source for PKP class SM02

{{Infobox locomotive
|name             = SM02/Ls40
|powertype        = Diesel
|image            = Ls40-5438 locomotive 01.jpg
|caption          = Ls40-5438 locomotive in [[Skansen Parowozownia Kościerzyna|Kościerzyna Railroad Heritage Park]]
|builder          = {{flagicon|POL}} [[Fablok]]
|serialnumber     = 
|buildmodel       = Ls40
|builddate        = 1952-1961
|totalproduction  = 581
|aarwheels        = B
|uicclass         = 
|gauge            = {{track gauge|sg}}
|wheeldiameter    = {{convert|850|mm|in|abbr=on}}
|wheelbase        =
|length           = {{convert|6000|mm|in|abbr=on}}
|width            = {{convert|2420|mm|in|abbr=on}}
|height           = {{convert|3010|mm|in|abbr=on}}
|frametype        =
|weightondrivers  = 8 t.
|locoweight       = 16 t.
|fueltype         =
|fuelcap          = 75 L
|consumption      = 210 g/km
|primemover       = S64L<br>S324HL
|enginetype       = [[four-stroke engine|four-stroke]]
|aspiration       = 
|displacement     =
|cylindercount    = 
|cylindersize     = 
|transmission     = four-drive, mechanical
|maxspeed         = 11,35 km/h
|poweroutput      = 44 hp<br>75 hp
|tractiveeffort   = 4,5 kN (293 t.)
|factorofadhesion =
|locobrakes       = hand brake
|trainbrakes      =
|safety           = 
|operator         = [[Polskie Koleje Państwowe|PKP]]
|operatorclass    = {{flagicon|POL}} SM02<br>{{flagicon|POL}} Ls40 <small>(Industry)</small>
|numinclass       = 12 (PKP)
|fleetnumbers     =
|officialname     =
|nicknames        = 
|locale           = 
|deliverydate     = 1954
|firstrundate     = 
|lastrundate      =
|retiredate       =
|restoredate      =
|scrapdate        =
|currentowner     =
|disposition      =
}}
'''SM02''' (model '''Ls40''') is a Polish series of [[diesel locomotive|diesel]] shunting locomotives used by [[Polskie Koleje Państwowe|PKP]]. 12 of the locomotives were introduced into PKP after 1954.<ref name="Chester">{{cite web| url=http://157.158.1.11/~uboottd/jareks/assort/VIII.htm| title=Chester Home Page| author=Jarek D. Stwarz| date=1997–2002| accessdate=2007-08-30}}</ref> It is the first diesel locomotive of Polish production.<ref>{{cite web| url=http://www.kolej.pl/serwis/tabor/ts.php| title=Rozwój spalinowych pojazdów trakcyjnych w Polsce| author=Piotr Mlak, Grzegorz Kochan| year=2002| accessdate=2007-08-30 |archiveurl = https://web.archive.org/web/20070915200816/http://www.kolej.pl/serwis/tabor/ts.php <!-- Bot retrieved archive --> |archivedate = 2007-09-15}}</ref>

==History==
SM02 was finally designed at the beginning of the 1950s and the production started in 1952 in [[Fablok]], [[Chrzanów]]. 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.<ref name="Chester" /> 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 ([[English language|En]].: ''Polish Society of Railway Enthusiasts'') from Grodziskie Zakłady Farmaceutyczne "Polfa" in [[Grodzisk Mazowiecki]] on 30 June 31995.

==Technical data==
SM02 is a '''B''' locomotive, which means there are two powered [[axle]]s under the unit. These axles are not articulated relative to other parts of the locomotive. The locomotive is propelled by a [[diesel engine]] and the power was supplied to axles through mechanical [[transmission (mechanics)|transmission]].<ref>{{cite web| url=http://www.ruciane-nida.org/kmk/viewtopic.php?p=1430| title=Pod egidą PTMKŻ KMK Olsztyn| accessdate=2007-08-30}}</ref>

==References==
{{Reflist|30em}}
{{Commons category}}
{{PKP Locomotives}}

[[Category:Railway locomotives introduced in 1952]]
[[Category:Diesel locomotives of Poland]]
[[Category:B locomotives]]
[[Category:Standard gauge locomotives of Poland]]
[[Category:Shunting locomotives]]


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