Safety of railway vehicles

25 June, 2021

• Compressed air connections in cars must be checked for tightness during maintenance. Each subsequent car is braked independently due to these connections. The intensity of the braking is carried out on the basis of the compressed air level.

• Doors and locks are also pneumatically controlled and can sometimes have safety relevant impairments. These must be checked at every service check.

Fluke 805 Mobile Vibration Tester is particularly suitable for quick inspection of rotating and mechanical components on the vehicles, such as:

• Unbalance on rotating parts such as wheels, fans, air conditioners, etc.

• Detection of bearing damage on rotating parts

• Vibrations on diesel engines

Note: Experience shows good usability in air cooling systems. In pumps, vibrations are not as pronounced. Here, the noise emission (volume) rather points to worn bearings.

With the help of thermal imaging, it is possible to quickly and safely locate any heat sources caused by errors. This is mainly applied to the following components

• Brakes (heat of the wheel and brake jaws)

• Heating of mechanical and rotating components (e.g. bearings)

• Thermal insulation (e.g. passenger wagons)

• Power electronics in locomotives and wagons

• Solenoid valves

• Fire protection

• Current belts and electrical connection points with high rated current (e.g. high transition resistance)

With the help of a battery tester e.g. Fluke BT521, the integrated battery buffers in the electric locomotives can be checked and their readiness for use (e.g. in case of voltage interruption) can be ensured.

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