| Helper Link, it's great when it works. How it works: Dial in the #on the fred on the train your pushing, brake line air pressure reading is shared with helper link. A pressure reduction on fred (brake application), helper units brakes set up. The train goes into emergency,so do the helpers. Helpers go into emergency, so does the train. All w/o connecting any air hoses and the switchman doesn't have to pull the pin. |