SBB Tm III (construction service)

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Tm III
Tm III No. 9597
Tm III No. 9597
Numbering: 9451-9463, 9501-9543, 9551-9597
Number: 103
Manufacturer: RACO Saurer
Year of construction (s): 1976-1987
Retirement: from 2005
Axis formula : B '
Gauge : 1435 mm ( standard gauge )
Length over buffers: 8740 mm
Service mass: 24-28 t
Friction mass: 24-28 t
Top speed: 60 km / h
Traction power: 165 kW
(260 kW, Tm 232)
Power transmission: mechanically

103 shunting tractors with diesel drive, which were procured between 1970 and 1987, are designated as Tm III at the Swiss Federal Railways ( SBB ). Index III stands for performance class III (between 200 and 350 hp). This is not a uniform series, but the vehicles differ in terms of different structures and additional equipment, while the undercarriage is the same for all. They were purchased for the construction service (maintenance of the overhead contact line, roadway, etc.) and are mainly used in this area.

The depot tractors with the numbers 901-924 ( see SBB Tm III (depot) ) and the Tm 599 of the Brünigbahn, which was taken over in 1981 by the Südwestdeutsche Eisenbahngesellschaft, are also designated as Tm III .

history

Between 1979 and 1988 SBB purchased a total of 103 vehicles of this type. 90 of them had a loading bridge that could be tilted on both sides and a loading crane that was hydraulically driven. The remaining 13 pieces have a lifting platform for work on the overhead line instead of the loading bridge. It was the first multifunctional construction service vehicle of the SBB. As the vehicle was quite robust and easy to use, it quickly became popular with the staff. The vehicle type always had a high level of availability, because faults etc. were rare. This prompted SBB, when the first vehicles were due for the major R3 overhaul, to keep the vehicles that were still operationally necessary and to subject them to a retrofit. Investigations showed that the option of renewing the vehicle would cost around half of a new vehicle. This contract was awarded to the industry and not carried out in the company's own workshops. Winpro was awarded the contract together with Windoff Bahn- und Anlagentechnik GmbH in October 2002. After the prototype had been extensively tested from September 2003, the series conversion began in February 2004; the first tranche comprised 52 vehicles (including prototype). The first vehicle from the series conversion was presented to the press on April 23, 2004.

The renovation also took into account the general conditions that have changed since delivery. It was known from the start that the engine was at the end of its service life and had to be replaced. Today, longer journeys and shorter maintenance windows are common. This requires a vehicle that can travel a distance with as few restrictions as possible; Therefore the installation of the train protection and the increase of the own speed to 80 km / h was necessary, which was still with a high trailer load. A particle filter is now mandatory for use in tunnels. The structure of the vehicle should have to be changed as little as possible. This was achieved, and besides minor adjustments only the fluid transmission had to be adapted to the new engine power. This conversion should enable the vehicles to be used for another 20 years.

Executions

Tm III 9451-9463

Version with catenary work platform

Tm III 9501-9531

Version with loading platform and crane

Tm III 9532-9540

Version with loading platform and crane, possibility of attaching snow plows

Tm III 9541-9543

Version with loading platform and crane. Have a turning device and the possibility of attaching snow blower units.

Tm III 9551-9597

Version with loading platform and crane

Conversion to Tm 232

A Tm III converted into a Tm 232

Some vehicles were converted to Tm 232 0xx-x . In addition to overhauling the car body, the conversion consisted of installing a new diesel engine and a new Palfinger 1.4 t crane. The conversion is clearly visible on the new exhaust system on the roof.

The previous Saurer motor with an output of 165 kW and a maximum speed of 2000 min −1 was replaced by an Iveco Cursor 8 motor. This has an output of 259 kW at 2400 min -1 and reaches the emission standard Euro 3. The new engine was not bigger than the old are mounted and could at the same place. A new radiator grille had to be installed in the rear of the cabin for the combined water and charge air cooler. The air compressor, which was previously driven by a cardan shaft, has been replaced by a new compressor attached directly to the engine. The previously installed hydrodynamic transmission of type L 2r2 sV2 from Voith could easily be supplemented with a march converter stage thanks to its modular principle and now corresponds to type L 2r4 sV2. As a result, and thanks to the higher engine power, the speed could be increased from 60 to 80 km / h while driving. The new electronic control enables optimal control of the operating conditions between engine speed and transmission without major changes to the actual operation being necessary. As before, it is operated using a lever for driving and braking. The engine is now equipped with a fully electronic start-stop control with engine preheating phase. The controller is - where possible - designed as a programmable logic controller, which is also connected to a diagnostic tool via a bus. The PLC monitors the complete set-up and dismantling of the vehicle and ensures that it is parked in a towable condition.

Whereabouts

Not all vehicles are in use anymore. Some of the vehicles that had not been converted were sold. The vehicles sold that remain in Germany are given a TSI number and are now also referred to as Tm 232. The number range includes 232 451… 597; the last three digits of the old number are retained.

JBV LT16 / Bane NOR LT 16

Jernbaneverket , the Norwegian Railway Infrastructure Office , responsible for the administration, operation and development of the Norwegian railway network, took over the vehicles Tm III 9568, 9592 and 9514 in 2011 and gave them the internal numbers 0395020A - 0395022A in this order. The vehicles have belonged to Bane NOR since January 1, 2017 .

Individual evidence

  1. ↑ Towed 90 km / h Tm III, 100 km / h Tm 232
  2. ↑ SER 6/2004 page 261
  3. ↑ SER 6/2004 page 261
  4. ↑ SER 6/2004 page 261
  5. ↑ Database over rullende jernbanematerialiell brukt i Norge. Retrieved July 13, 2017 (Norwegian).
  6. ↑ Database over rullende jernbanematerialiell brukt i Norge. Picture of the TM III 9514 in Hamar. April 21, 2012, Retrieved July 13, 2017 (Norwegian).

literature

See also