Prerequisites
The SN90 system is turned off. No special tools are required for this task. The following specific consumable is required for this task:
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Lubricant Use a machine oil that is insoluble in water, does not dry out, and can withstand the rotation without causing stains.
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We recommend the following lubricant: Tonna Slideway Oil S68
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Kongsberg Discovery part number: 654‑078793 |
Context
The hull unit was lubricated as a part of the production process. It was thus provided fully lubricated when delivered to the vessel. During normal conditions, the lubricant applied will last for a long period of time. Additional lubrication of the hull unit must only take place when required.
NoteDo not use grease on the hoisting spindle. Use a machine oil that is insoluble in water, does not dry out, and can withstand the rotation without causing stains.
A hull unit may be provided as an option. It allows you to lower and hoist the transducer. All information and tasks related to the hull unit may be disregarded and omitted if the SN90 system is installed without this unit.