Statens Järnvägar type Z4p 0-4-0 no. 331
Diesel-hydraulic shunter (in Swedish parlance a "lokomotor") photographed inside the Skara roundhouse on 28 July 2013.
No. 331 was built by Kalmar Verkstad, manufacturer's no. 112 in 1953 and delivered that April.
All the Z4p locomotives were powered eventually by Scania-Vabis D812 160 hp 8-cylinder diesel engines, driving 760 mm diameter wheels through an Atlas-Diesel DF 1.0 hydraulic gearbox. The brakes were compressed air type and they had electric generators to provide lighting. The maximum permitted speed was 40 km/h.
Picture added on 31 January 2014 at 22:29