PKP class SM04

The SM04 (factory designation 409Da) is a low power, Polish built shunter, formerly operated by PKP (Polish National Railways) and is an improved version of the SM03.

SM04
SM04-002 at Chabówka Railway Museum
Type and origin
Power typeDiesel
BuilderZastal  POL
Model409Da
Build date1972, 1978
Total produced2
Specifications
Configuration:
​
 • AARB
Gauge1,435 mm (4 ft 8 1⁄2 in)
Driver dia.950 mm
Length6,940 mm
Width2,970 mm
Height3,380 mm
Loco weight24 T
Fuel capacity250 l
Engine type10H6/14H6
Cylinders6
TransmissionMechanical
Loco brakeKnorr
Performance figures
Maximum speed25.7 km/h (Ls150)
45.8 km/h (2LS150)
Power output133 kW
Tractive effort58.5 kN
Career
OperatorsPKP
ClassSM04
Locale POL Poland
Delivered1972, 1978

History

Built between 1972 and 1978, the SM04 differed from its predecessor in that its construction allowed for the installation of a more powerful diesel engine, built under licence from Henschel. Originally, this engine was to be the 10H6, which had a power output of 160 bhp; however the 180 bhp 14H6 was used instead.

The SM04 was mainly sold to industry, where they carried their factory designation of 409Da. A mere 2 examples were acquired by PKP at the beginning of the 1990s. Both locomotives had been salvaged from Zakłady Naprawcze Taboru Kolejowego w Sędziszowie (Sędziszów Rolling Stock Reparation Plant), but were removed from PKP's inventory in 2000. One of these is now stationed as an exhibit at the railway museum in Chabówka.

Locomotive assignment
Loco nos. Operator Remarks
002 Chabówka Railway Museum Exhibit

See also
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