PKP class SM02

Infobox Locomotive
name = SM02/Ls40
powertype = Diesel

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caption = Ls40-5438 locomotive in Kościerzyna Railroad Heritage Park
builder = flagicon|POL Fablok
serialnumber =
buildmodel = Ls40
builddate = 1952-1961
totalproduction = 581
aarwheels = B
uicclass =
gauge = RailGauge|sg
wheeldiameter = mm to in|850|abbr=yes
wheelbase =
length = mm to in|6000|abbr=yes
width = mm to in|2420|abbr=yes
height = mm to in|3010|abbr=yes
framesize =
weightondrivers = 8 t.
weight = 16 t.
fueltype =
fuelc

consumption = 210 g./km
primemover = S64L
S324HL
enginetype = four-stroke
aspiration =
displacement =
cylindercount =
cylindersize =
transmission = four-drive, mechanical
topspeed = 11,35 km/h
poweroutput = 44 Hp
75 Hp
tractiveeffort = 4,5 kN (293 t.)
factorofadhesion =
locobrakes = hand brake
trainbrakes =
safety =
railroad = PKP
railroadclass = flagicon|POL SM02
flagicon|POL Ls40 (Industry)
numinclass = 12 (PKP)
roadnumber =
officialname =
nicknames =
locale =
deliverydate = 1954
firstrundate =
lastrundate =
retiredate =
restoredate =
scrapdate =
currentowner =
disposition =

SM02 (model Ls40) is a Polish series of diesel shunting locomotives used by PKP. 12 of the locomotives were introduced into PKP after 1954.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] It is the first diesel locomotive of Polish production. [cite web| url=http://www.kolej.pl/serwis/tabor/ts.php| title=Rozwój spalinowych pojazdów trakcyjnych w Polsce| author=Piotr Mlak, Grzegorz Kochan| date=2002| accessdate=2007-08-30]

History

The locomotive's designing started in 1947 on the basis of pre-war German OMZ122 shunter.cite web| url=http://www.psmk.org.pl/index.php?id=zbiory/ls40| title=Polskie Stowarzyszenie Miłośników Kolei| date=2003-2007| accessdate=2007-08-30] SM02 was finally designed in the beginnings 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 of 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 on June 30, 1995.

Technical data

SM02 is a B locomotive, what means there are two powered axles under the unit. These axles are not articulated relative to other parts of the locomotive. The locomotive is proppelled by a diesel engine and the power was supplied to axles through mechanical transmission. [cite web| url=http://www.ruciane-nida.org/kmk/viewtopic.php?p=1430| title=Pod egidą PTMKŻ KMK Olsztyn| accessdate=2007-08-30]

References