MEANS OF COMMUNICATION AND ENGINE WHISTLE CODE GR 4.18
Means of communication
1. No passenger train or mixed train shall be dispatched from any station, unless every passenger carriage is provided with means by which communication can be made with the Guard or the LP.
2. The above rules shall not applya. Passenger or mixed train in case of complete or partial failure of vacuum. b. Such particular train as may be exempted under approved special instructions.
3. If the railway administration is satisfied that mischievous use of the means of communication referred to above is prevalent, it may, notwithstanding anything contained in the above rule, direct the disconnection, for the time being, of the means of communication provided in all or any of the passenger carriage in any such train.
4. A goods vehicle in which passengers are carried is not a “passenger carriage” within the meaning of this rule.
Actions taken in the cases of failure of whistles SR 4.50.-2
1. In case of failure of whistles of the driving cab the engine at originating station, the engine should be treated as failed and another engine should be provided. If the defect develops in route, the LP should stop at first approaching station and should inform the SM about the defect. The SM, on getting memo from the LP will advise the controller, who will arrange a relief loco. If the same loco is allowed to work by traction loco controller/power controller due to non-availability of relief loco. The LP will observe a speed restriction of 25 KMPH if view ahead is clear and a speed restriction of 8 KMPH when view ahead is not clear due to any reason. In such cases defective loco should be changed at first available opportunity.
