Making sure that the transducer cannot be accidentally lowered
In some situations you need to make sure that the transducer cannot be accidentally lowered when the SU90 system is turned on. This could be when the vessel is in dry dock, or if you are in very shallow waters.
Procedure
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1 Use a spanner to open the door on the Motor Control Unit.
WARNING
High voltages are used. This equipment must be serviced only by qualified personnel familiar with high-voltage equipment and the potential hazards involved. Failure to observe this precaution could result in bodily injury. You may be exposed to electric shock. Read and understand the applicable first aid instructions related to electric shock.
2 Locate the Hoist/Lower Switch (S302). Set the switch to position STOP.
3 Remove the hand crank from its position at the top of the Motor Control Unit.
When removed from its storage position the hand crank releases a safety switch which disables hull unit operation.
4 Close the cabinet door.