Simrad ST90 - Page 351

442703/B
349
WARNING
Highvoltagesareused.Thisequipmentmustbeservicedonlybyqualied
personnelfamiliarwithhigh-voltageequipmentandthepotentialhazards
involved.Failuretoobservethisprecautioncouldresultinbodilyinjury.
Procedure
1[Bridge]Makesurethatyouhavesufcientwaterdepthbelowthekeelbefore
youlowerthetransducer.
2LocatetheMotorProtectingSwitch(S301).SettheswitchtopositionON.
3LocateHoist/LowerSwitch(S302).SettheswitchtopositionREMOTE.
4[Bridge]Lowerthetransducertoitsmiddleposition.
Whenthetransducershaftstops,makesurethishappensatthecorrectmiddle
position.
5[Bridge]Lowerthetransducertoitsbottomposition.
Whenthetransducershaftstops,verifythatthecorrectbottompositionhasbeen
reached.
6[Bridge]Hoistthetransducertoitsmiddleposition.
Whenthetransducershaftstops,makesurethishappensatthecorrectmiddle
position.
7[Bridge]Hoistthetransducertoitsupperposition.
Whenthetransducershaftstops,verifythatthecorrectupperpositionhasbeen
reached.
8[Bridge]Lowerthetransducertoitsbottomposition.
Whenthetransducershaftstops,verifythatthecorrectbottompositionhasbeen
reached.
9[Bridge]Hoistthetransducertoitsupperposition.
Whenthetransducershaftstops,verifythatthecorrectupperpositionhasbeen
reached.
10[Bridge]Notifythesonarroomtodothenextstep.
11LocateHoist/LowerSwitch(S302).SettheswitchtopositionSTOP.
12[Bridge]PowerdowntheST90.
13[Bridge]Notifythesonarroomthatthetestisnished.
Settingtowork