BECCE's Flashcards
Minimum idle oil pressure?
5 psi
Disabling engine temperatures
- less than 140 degrees
- 212 and greater
Normal operating temperature
160 - 192 degrees F
193 - 204 degrees F descrepancy classification
Major
205 - 211 degrees F descrepancy classification
Restrictive
MAIN ENGINE HIGH WATER TEMP (RAW WATER)
SYMPTOM
EDM alarm sounds and flashes “Coolant Temp High”
- Check overboard discharge
- Look through ER window and report temp on gauge
- Check bilges
- Check R/W pipes
- Check sea suction valves
- Check and shift strainers
- Ensure deicing system is isolated
- Check raw water pump
MAIN ENGINE HIGH WATER TEMP (JACKET WATER)
SYMPTOM
EDM alarm sounds and flashes “Coolant Temp High”
- check J/W level
- inspect J/W pump
- Check L/O for qaunity and quality
Secure engine when:
- Leaks are found
- J/W pump inoperative
- Temp continues to climb
Loss of MDE L/O Pressure
- Symptom:
EDM alarm sounds and flashes “Oil Pressure Low”
- secure in engine with casualty
- Observe casualty through port hole to determine safety
- Check bilges
- Look for obvious leaks
- check L/O for qaunity and quality
- check recovery bottle for contamination
Loss of F/O Pressure
Symptom:
Engine begins to run rough and there is a loss of power. EDM alarm sounds and flashes “Fuel Pressure Low”.
- Secure engine with casualty
- Check status through port hole to determine safety and observe bilge for F/O
- Check emergency cutout valves
- Check primary fuel filter
- Check entire fuel system for leaks
Corrective actions
- Replace primary fuel filter if suspect
- Re-prime system
- Start engine and check for proper operation
Loss of Engine RPM Control
Symptom:
Engine RPM cannot be controlled
- Pull emergency fuel cut-off to affected engine
- Secure affected engines’s DDEC breaker on the 24 volt panel
- If engine still does not secure, pull emergency air shutdown
Loss of Steering (Hydraulics)
Symptom:
- Wheel turns in either direction with no rudder response and the low steering pressure alarm light is illuminated and audible alarm is sounding.
- Look through port hole for safety
- Check the hydraulic fluid is no less than half full
- Check that pre-discharge pressure is between 20-30 psi
- Inspect entire system for leaks or kinks
Loss of Steering (Electrical)
Symptom:
- Jog lever has no rudder response/is not operating correctly or auto pilot is not responding correctly
- Look through Port holr for safety
- Check sight glass and pressure gauge on reservoir, if no oil or pressure secure engines
- Check electrical connections at electro-hydraulic steering valve
- Check power servo cylinder
- Check steering ram connections
- Check auto pilot and rudder angle indicator mechanical and electrical connections
- Check steering system breakers on the 12v panel
- Secure steering control breaker if faulty jog lever interferes with helm
- Secure auto pilot if interfereing with helm
*
Reduction Gear Failure
Symptom:
- Boat does not respond when throttle are operated in forward and reverse
- Check EGIM breakers on 24V panel
- Check reduction gear bilge for for oil
- Check reduction gear L/O level
- Check reduction gear control valve connections
- Check dirty oil filter indicator on duplex filter and shift handle if indicator popped up
- If no L/O leaks are present and level is full, restart the engine and check clutch applied pressure is 230-290 psi. If pressure is not sufficient, secure engine
Low Voltage Alarm/Loss of Electrical Charging System
Symptom:
EDM displays low voltage alarm and/or a drop in voltage is indicated by dimming lights, electronics dropping offline and/or DDEC station control is deactivated.
- Check position of battery isolator switches
- Check alternator reset switches
- Check alternator belts and electrical connections
- Check electrical connections on L/O pressure switches
- Check all main battery connections
- Secure all non vital equipment
- Place batteries in parrallel
Fire in the Engine Room
Symptom:
Fire alarm sounds
- Check status of E/R through port hole
- Notify coxswain of E/R status
- If fire, pull emergency fuel cut-out valves
- energize C02 system
- Secure electrical breakers on DC panel with exception of main breaker and VHF-FM Radio
- Sensor in engine room sets off the alarm at 225F or smoke obscurity
