During maneuvering on a slow speed diesel engine vessel, a low starting air system pressure alarm is activated. Local starting air receivers' pressure gauges indicate proper pressures, and compressors are running and are 'loaded' up. What could cause the alarm? |
A) Malfunctioning starting air cylinder distributor valves. |
B) A stuck open air starting valve on one of the engine cylinders. |
C) Malfunctioning, stuck open, main engine air starting valve. |
D) Faulty system alarm pressure switch and/or a fault in the alarm circuit. |