Shunting locomotive with two axles Pegaso COMET diesel engine, torque converter and a single cabin with double controls. It has manual brake and compressed air to the locomotive. It does not have brake for the train.
MEME, the nickname that is known to this type of locomotive is due to the initials of the firms involved in its design and construction: Macosa, Euskalduna, Maquinista Terrestre y Marítima and Enasa.