Kiha82series
Type index


Former locomotive-hauled intercity trains compared unfavorably with "Kodama" intercity services starting in operation by 151 series electric multiple unit (EMU) from 1958. In 1960, Japanese National Railways (JNR) developed Kiha81 series diesel multiple unit trains for intercity services on unelectrified lines such as Tohoku line, etc.
Kiha81 series DMU consist of 9 cars. End cars and intermediate restaurant trailer car are equipped with a diesel generator. The design of end cars was based on the bonnet-style 151 series EMU. A diesel generator of end cars is fitted in the bonnet. The body construction is basically same as that of 151 series, featuring and sealed double-glazed windows.
Bogies, DT27/TR67, are based on DT22/TR51 used for Kiha20 series, with the major difference having bolster air suspension and anti-rolling stabilizer to ensure smooth ride characteristics. DARS brake, which was based on DA brake in having minor improvement introducing electrical control circuit in order to realize quick brake response, is adopted. Brake devices are tread brake.
Kiha81 standard class end cars are powered by one DMH17H diesel engine rated at 180PS, and Kiha80 standard class intermediate cars and Kiro80 1st class intermediate cars are powered by two traction engines. DMH17H diesel engines are based on DMH17C with major difference in having flat-eight arrangement and discontinuing the maintenance trap located on the floor in order to reduce noise from the traction engine. The hydraulic transmission gear is TC2A (manufactured by SHINKO ENGINEERING CO., LTD.) or DF115A (NIIGATA ENGINEERING CO., LTD.).
1st class cars have adjustable reclining seats with 1160mm seating pitch, two washrooms, a western style toilet and a Japanese style toilet. Standard class cars have rotatable transverse seating with 910mm seating pitch, a washroom and a Japanese style toilet. The air conditioner is AU12 including forced ventilators.
Kiha82 series DMU built from 1961 incorporate some improvements, having gangwayed cab sections in order to couple/uncouple formations and improved total available power by introducing powered restaurant cars. As the result, a bonnet section of the end car was discontinued and a diesel generator was located behind the cab section.
Bogies were changed to DT31/TR68 employing disc brakes to improve the brake performance.
Kiha82 series were seen on unelectrified lines all over Japan, but were being withdrawn little by little and finally remaining kiha82 series used on "Nanki" services between Nagoya and Kii-Katsuura were withdrawn in March, 1992.
Technical Data
Items Data
Service speed, etc. Service speed: 105km/h
Length 20600mm
Width 2903mm
Height 3955mm
Bogie DT27, DT31A, DT31B (motored) TR67, TR68, TR68A (trailer)
Traction engine DMH17H (180PS)
Transmission TC2A or DF115A
Air conditioner AU12
Designed by Japan National Railways