The Y2402 (Former SNCF)

Le Y2402 au dépot du CFTR

The Y2402 at the depot of the CFTR in 2014. (Picture Sébastien Kieffer)

General characteristics of the switcher:

Builder: Decauville
Model/Type: -
Date of delivery: 1962
Road numbers: Y2402
Diesel power [kW]: 40 at 2000 t/min then 56
Locomotive power [kW]: ?
Maximum starting tractive effort [kN]: ?
Maximum safe speed [km/h]: 15 & 50
Weight in working order [t]: 16,6
Total length [m]: 7,18
On-board voltage [V]: 24

General view:


Builder plate:


Short presentation:

The 119 Y 2400 were very small switchers produced in the 60's and developped for a part time use in the depots to move for example greater heavier locomotives. They have similar structures like the Y5100 series. The 4 cycle Diesel engine (AGROM) with direct injection uses air cooling to simplify the conception and to avoid  the problem of water freezing in the cold regions of France. 

The transmission system is the one of a car: 4 speed-gear box with dry clutch. The diesel has quite poor power output so if a somewhere heavier train needs to be moved, there is another gear box allowing to choose two different max speeds: 50km/h (in 4th gear) for the one and 15km/h for the other. The speed reduction gear ratio can only be changed when the switcher is stoped. 

Between axles and gear box, chains are used to transmit the power. 

Life at the CFTR:

Last owner before salvage: CFTVDy
Retirement date: ?
Acquisition date: 1982
Current owner: CFTR
Restauration: 1983
Use at the CFTR: Switch at Sans-Soucis
Retirement by the CFTR: -

At the beginning, the Y2402 had just the possibility to brake by itself. It was not equiped with the classical air brake. There was only the trainline on board but no possibility to brake. This was so because this kind of switcher was meant to only move 1 or 2 waggons or 1 locomotive and not more. For this purpose, the independent brake (that's to say, the system that brakes only the switcher) was sufficient. Now the CFTR has equiped it with a distributor (Air brake control valve) and a control handle.

The original diesel engine is suffering and has been replaced by a deutz which now also reaches the end of its life.

Pictures (CFTR): 

This so called Locma32 is an old Y2400 which was not listed anymore. It was then made available for the depot of Thionville, on the north of Lorraine here i 1993. (Picture Sébastien Kieffer)

External links:

Further technical information: 

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