Steering Gear

Question 1

1. Describe the procedure for testing the ship’s steering gear and associated equipment prior to departure from port.

Answer 1

Inform bridge and C/E you’re going to test the SG.
Start additional Generator for manoeuvring power supply.
Check oil levels.
Check SG for oil leaks.
Check SG system alarm.
Check SG rudder carrier bearing is well lubricated.
John Willison IAMI Revision 35
Check hunting gear/lever are in good condition.
Check communication between SG and bridge is OK.
Test movement of SG from bridge 35°P to 30°S and then time to ensure within 28 seconds. Test emergency steering from 15°P to 15°S within 60 seconds.
Oil filter checked.
SG floor must be clean and tidy.
Handrail secured.

Question 2

2. With reference to the testing of a ship’s steering gear prior to departure, list eight items of machinery or control systems whose operation must be tested.

Answer 2

SG motor and pump. 
Emergency power. 
SG alarm tested. 
Automatic failure changeover of steering gear pumps. 
Hydraulic oil low level alarm. 
Position repeaters to bridge. 
Fixed communication systems. 
Rudder bearing grease or lubrication system. 
Rudder stock cooling system. 
35°P to 30°S in 28 seconds. 
15°P to 15°S in 60 seconds.

Question 3

3. Describe the routine watch-keeping duties carried out in the steering flat.

Answer 3

Check the electrical load of the steering gear motors.
Check the oil level of hydraulic header tanks, top up as required.
Check the temperature of the hydraulic oil.
Check the pumps and motors for excess noise, vibration and heat.
Check the grease pump for operation, that sufficient reserve of grease is available. Check all bilge wells for oil/water accumulation.
Check the carrier bearing (rudder stock) for excess leakage.
Check the condition of all linkages, pipe brackets for security and damage. Check pump pressure.

Question 4

4. Describe the procedure for testing a steering gear within 12 hours of sailing.

Answer 4

Inform bridge and C/E you’re going to test the SG.
Start additional Generator for manoeuvring power supply.
Check oil levels.
Check SG for oil leaks.
Check SG system alarm.
Check SG rudder carrier bearing is well lubricated.
Check hunting gear/lever are in good condition.
Check communication between SG and bridge is OK.
Test movement of SG from bridge 35°P to 30°S and then time to ensure within 28 seconds. Test emergency steering from 15°P to 15°S within 60 seconds.
Oil filter checked.
SG floor must be clean and tidy.
Handrail secured.