51. Duties of attendant of main mechanical ventilator.
- The person in charge of the main mechanical ventilator shall -(a)keep the ventilator running at the speed fixed by the manager;(b)examine the machinery and observe the pressure-recording or water gauge and the speedindicator at intervals of not more than one hour, and shall enter the readings of the indicator in a bound paged book kept for the purpose at the fan-house;(c)immediately report to his superior official any stoppage of, damage to, or defect or derangement in the machinery, or any unusual variation in the water-gauge or other indicators and shall also immediately report to him any unusual circumstances in regard to mine ventilation which may come to his notice;(d)not leave his place until relieved by a duly appointed substitute where the ventilator is continuously operated.
