Prerequisites
You need a ratchet with a 13 mm (½ inch) socket.
Procedure
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1 |
Make sure that you have sufficient water depth below the keel before you lower the transducer.
NoteIf your vessel is in dry dock, make sure that you have sufficient height between the hull and the dry dock floor. The space under the hull must be free from tools, scaffolding, personnel and other obstacles.
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2 |
Make sure that the SY50 system is turned off.
Do not lower or hoist the transducer manually unless you have first disconnected all power. Make sure that all power to the hull unit is disconnected. Disengage the circuit breaker in the Power Supply Unit.
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3 |
Remove the protective cap on the top cover. |
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4 |
Use a 13 mm (½ inch) ratchet to rotate the hoisting spindle. |
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5 |
Lower the transducer to its bottom position. |
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6 |
Replace the protective cap on the top cover. |