Shinkansen maintenance trains

[Jaco3011]

In this topic we gather information about rolling stock not covered by Maintenance Car Database. We will stick to Shinkansen as for now.

 

Edited December 14, 2020 by Jaco3011

[Jaco3011]

Doctor Yellow

Doctor Yellows are Shinkansen EMU retrofitted with various sensors monitoring condition of rails and overhead line. Currently two consists are in use, along the East-i consist.

Wikipedia gives pretty nice information on these:

https://en.wikipedia.org/wiki/Doctor_Yellow

Edited December 14, 2020 by Jaco3011

[Jaco3011]

DD18 and DD19

DD18 and DD19 were snowploughs built around DD51 locomotive. DD18 is the one with V-shaped Russel head, DD19 has a rotary head.

Source:https://en.wikipedia.org/wiki/Shinkansen#Maintenance_vehicles

DD18

 

https://upload.wikimedia.org/wikipedia/commons/d/df/DD19-1.JPG
DD19

 

https://ja.wikipedia.org/wiki/JR東日本DD19形ディーゼル機関車

DD19 has an article on japanese wikipedia, if I understood correctly, DD19 were converted from DD17.

[Jaco3011]

Series 912

Series 912 were 20 DD13 series diesel locomotives converted to standard gauge for construction and maintenance work on Tokaido Shinkansen line. Apart from changing bogeys, additional coupler was installed - the same type as on Shinkansen trains. There were two subseries - first batch numbered 1-16 and second batch numbered 61-64 The latter "60 subseries" were equipped with - not sure here - either just multiple control or special multiple control allowing two locos to be on two ends of the train. All were scrapped in 2011.

 

https://ja.wikipedia.org/wiki/国鉄DD13形ディーゼル機関車#/media/ファイル:912_hakata_200910.jpg

You can clearly see the Shinkansen coupler. It was retractable, so the knuckles coupler could be used.

Sources: https://ja.wikipedia.org/wiki/国鉄DD13形ディーゼル機関車#912形