But, among the type 103 cars converted at that time, a series of KuHa type 103 cars (type 103 commuter trains with a cab-equipped lead coach without driving motor) were not air-conditioned at all, so they could not be used during the summer season, but had to be renovated into air-conditioned cars at Suita and Takatori depots.
しかし、このとき振り替えられたクハ103は、初期の非冷房車ばかりで、このままでは中間車の冷房が使用できないことから、吹田、鷹取の両工場で冷房改造を行わねばならなかった。