Maneuvering Time Test - Kongsberg Frydenbo IRV-2 Maintenance Manual

Steering gear

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Maintenance Manual

For the purpose of confirming the healthy condition of the internal seal of the Steering Gear unit, the

following test procedure should be followed. The procedure relies on timing the movement from 30°

rudder position on one side to 35° on the opposite side. Read the pressure on the pump manometer

when performing the test.

Performance of this test should be managed by the Chief Engineer when vessel is lying still in sheltered waters.

The test should be done first with pump no 1 and then again with pump no 2.

The maneuvering time must be taken while the rudder is moving. The rudder must start at 35°. When passing

30°, the stopwatch must be started, and stopped when passing 35° on the opposite side.

Set the selector switch on the motor controller 2 to position 2

"STOP".

Set the selector switch on motor controller 1 to position 3 "LOCAL

CONTROL".

Operate the Steering Gear using the solenoid valve to 35° STBD.

Measure the time used from to 30°STBD - 35°PORT.

Measure the time used from to 30°PORT- 35°STBD.

Set the selector switch on motor controller 1 to position

2 "STOP".

Set the selector switch on motor controller 2 to position

3 "LOCAL CONTROL".

Repeat test with pump No 2.

Set both selector switches in position 1 "REMOTE

CONTROL".

10. Operate the Steering Gear from the bridge and follow instruction 3-5.

11. Return to 0° position and stop the pumps.

Pump 1

Pump 2

Pump 1+2 STBD - PORT

Pump 1+2 PORT- STBD

For vessels with two Steering Gears, please perform one test per unit!

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