The Class DE10 is diesel-hydraulic locomotive for the Middle-distance, short-distance freight trains and shunting by Japan Freight Railway. They were built between 1966 and 1978, and used by JNR(Japanese national railways). DE10 drives five wheels with one engine. A torque converter has a high-speed step (for pulling train mode ~85km/h) and a low-speed step (for Switcher mode ~45km/h). I observed this locomotive at 2014 open engine depot of Higashi-Niigata.

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

Controller layout
(When viewed from inner-side to front-side, and from left-side to right-side.)
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Main Power Controller

Power Notch 14~Off

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Reverser Handle

To two end (to inner-side)
Neutral
To one end (to front-side)

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Automatic Self-Lapping Brake Valves (large handle)

Emergency
Handle Off
Service Zone
Running
Release
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Independent Self-Lapping Brake Valves (small handle)

Service Zone
Running
Release
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http://www.nicovideo.jp/watch/sm23585011
前面展望 東新潟機関区 DE10体験添乗