This rolling stock, mostly as the Express 'Tango,' commonly operated on the Sanin Main Line, the Obama Line, the former JNR/JR (later KTR) Miyazu Line and the Maizuru Line, and even after its regular operation was ended on March 16, 1996, the train without a conductor continued running for more than 30 years until the line became electrified on October 2, 1999.
山陰本線乗り入れ、小浜線や宮津線で急行「丹後」を中心に、北近畿タンゴ鉄道宮津線に転換後も運用、1996年3月16日の廃止以後も、ワンマン運転車が在籍し1999年10月2日の電化まで30余年間走り続けた。