Sonar room steps
These tasks are done in the sonar room.
Prerequisites
The SU90 system is turned on and operates normally. Neither tools nor instruments are required.
Context
Certain steps in this procedure are location specific.The steps marked [Bridge] are done on the bridge.
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.
In the event of problems or malfunctions:
1 On the Motor Control Unit: Locate the Motor Protecting Switch (S301).
2 Set the switch to position OFF.
Procedure
1 [Bridge]: Make sure that you have sufficient water depth below the keel before you lower the transducer.
2 Do the following preparations.
a Use a spanner to open the door on the Motor Control Unit.
b Locate the Motor Protecting Switch (S301). Set the switch to position ON.
c Locate the Hoist/Lower Switch (S302). Set the switch to position REMOTE.
d Close the door on the Motor Control Unit.
3 [Bridge]: Lower the transducer to its middle position.
a Make sure that the transducer can be lowered without complications or obstacles.
b When the transducer shaft stops, make sure this happens at the correct middle position.
4 [Bridge]: Lower the transducer to its bottom position.
a Make sure that the transducer can be lowered without complications or obstacles.
b When the transducer shaft stops, verify that the correct bottom position has been reached.
5 [Bridge]: Hoist the transducer to its middle position.
a Make sure that the transducer can be hoisted without complications or obstacles.
b When the transducer shaft stops, make sure this happens at the correct middle position.
6 [Bridge]: Hoist the transducer to its upper position.
a Make sure that the transducer can be hoisted without complications or obstacles.
b When the transducer shaft stops, verify that the correct upper position has been reached.
7 [Bridge]: Lower the transducer to its bottom position.
a Make sure that the transducer can be lowered without complications or obstacles.
b When the transducer shaft stops, verify that the correct bottom position has been reached.
8 [Bridge]: Hoist the transducer to its upper position.
a Make sure that the transducer can be hoisted without complications or obstacles.
b When the transducer shaft stops, verify that the correct upper position has been reached.
9 [Bridge]: Repeat the test using the Hull Unit Control dialog box on the top bar.
10 [Bridge]: Notify the sonar room that the test is finished.
11 Close the door on the Motor Control Unit. Use a spanner to secure it.