 The brake system uses the electro-pneumatic straight air brake with regenerative braking from the 1000 series.The series was remodeled with a load compensating device which adjusts brake power to support changes in the car's body weight which increased the passenger limit.The main controller unit, of a series parallel specification, was also taken from the 1000 series, and taking into account connecting this series with 1380, 1800, and 1850 series cars, test runs on 1800 series cars were carried out.