Preventive maintenance schedule
In order to secure a long and trouble-free operation of the SN90 system, certain specific preventive maintenance tasks must be done. The tasks are organized in a preventive maintenance schedule.
Note
Even though a preventive maintenance schedule is provided, the SN90 system must be inspected regularly.
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.