Stabilisers

Question 1

What kind, what checks are you performing?

Answer 1

Naiad Dynamics, zero speed stabilisers

• Oil levels
• Oil pressure
• Oil temp
• Visual inspection
• Smells, sound
• Condition of anodes
• Sea strainer
• Heat exchange on cooler
• Filters

Question 2

What are you looking for in hydraulic oil analysis?

Answer 2

• Colour
• Smell
• Wear particles
• Water

Question 3

Actions and probable cause of a higher copper content?

Answer 3

High copper would be failure of the heat exchanger tubes. This would be causing either hydraulic fluid leaking to the ocean or sw entering the hydraulic system. Both of which are bad so they plant will need to be shut down and rectified.

Replacing the tubes or the whole unit will be need and then the hydraulic system will need to be drained and flushed to ensure all sea water has been removed.