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.

This article does not cite any sources. (December 2014)

SM04
SM04-002 at Chabówka Railway Museum
Type and origin Power type Diesel Builder Zastal  POL Model 409Da Build date 1972, 1978 Total produced 2
Specifications Configuration: ​  • AAR B Gauge 1,435 mm (4 ft 8+1⁄2 in) Driver dia. 950 mm Length 6,940 mm Width 2,970 mm Height 3,380 mm Loco weight 24 T Fuel capacity 250 l Engine type 10H6/14H6 Cylinders 6 Transmission Mechanical Loco brake Knorr
Performance figures Maximum speed 25.7 km/h (Ls150) 45.8 km/h (2LS150) Power output 133 kW Tractive effort 58.5 kN
Career Operators PKP Class SM04 Locale  POL Poland Delivered 1972, 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

See also

• Polish locomotives designation

External links

• Modern Locos Gallery
• Rail Service
• Mikoleje
• Chabówka Rail Museum

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