| 摘要 |
A sensor for detecting overtravel of a brake rod. The sensor includes a first part attached to the housing of a pneumatic brake actuator, and a second part connected to the rod. One part is a body having an axial passage, with a pair of axially-extending conductors in its wall. The other part is a rod having a conductive head which will bridge the conductors to enable an electrical current to pass when the rod is in a position respective to overtravel.
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