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SRM-växellådor I Mexiko (Allmänt)

av Thomas Åkerblad @, Uppsala, mndagen 6 juli 2009, 21:05:19

Växellådor från svenska SRM fanns i ett antal fordon som T22, T2p, DONJ diesellok m fl. Mig veterligen var det rätt misslyckade konstruktioner – någon maskintekniskt kunnig får gärna rätta mig eller komplettera!?

Texten nedanför är från MEXLIST (amerikansk/mexikansk maillista om jvg i Mexico). Här beskrivs hur FIAT-motorvagnar (nära släktingar med SJ Y1) och med SRM-växellådor hamnade i Mexico via Israel. Hur SRM-lådorna klarade sig under mexikanska förhållanden har jag dock inga uppgifter om.


"Thanks to MEXLIST member Daniel Osborne of London, England, who has sent us a scan of the December 2007 issue of "HaRakevet: A Quarterly Journal of the Railways of the Middle East," edited and published in Berlin, Germany, by Rabbi Walter Rothschild, PhD. The publication contains this very interesting item:

THE MYSTERIOUS FIAT RAILCARS

For some considerable time there have been rumours that Israel ordered, and then cancelled, some diesel railcars from FIAT - there was even a photo somewhere of one painted in the then-IR livery. From Andrea Canale of Milan, whom I met in Vienna, comes at last the following concrete information:
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“In 1973 Israel Railways ordered ten railcars from FIAT, that became Type 7225 in their catalogue and were built in 1975 in the subsidiary factory of Ferrosud in Matera (south east Italy). They were equipped with two motors of type 8217.32, the same as FS Class ALn 668 of the modern series and ALn 663 (which was produced until the 90’s), hydraulic transmission with SRM DS0,9 gearbox of Swedish origin (similar to that for Swedish railcars of Class 1) and a bodyshell inspired by railcars previously built for Cuba and Mexico, with a front end inspired by contemporary FS ALn 668.1900. Power was 324 kW and they had a maximum speed of 128 km/h, they were air conditioned (at that time completely unusual in Italy) and had 68 seats (as the FS ALn 668, where ‘68’ means the number of seats).

However, after they were built Israel Railways cancelled the order, according to the Italian literature because of the Yom Kippur war. So FIAT tried to sell the vehicles to FS, but they were considered too different internally to operate in Italy, compared to the FS railcars (probably four were already fitted with a bar counter) so Italian technicians in Mexico offered them to Ferrocarril del Pacifico, which bought six units (four with bar and 60 seats, and two without bar) and to Ferrocarril Chihuahua al Pacifico, the power being increased to 346 kW and reduced top speed to 100 km/h due to the high gradients on its network. They entered service in Mexico in 1975; FIAT railcars based on ALn 668 had operated there since 1958.”

Mvh/Thomas Å

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