Simrad PI GEOMETRY - QUICK REFERENCE GUIDE REV B Manuale di Installazione Pagina 201

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On-boardmaintenance
Figure54LocationofS302intheMotorControlUnit
HOIST STOP
REMOTE LOWER
(CD015409-029)
S302
Howtolowerthetransducerfromthesonarroom
Thisprocedureexplainshowtolowerthetransducershaftand
transducerfromthesonarroom.Thecontrolswitchesinsidethe
MotorControlUnitareused.
1IntheMotorControlUnit,setthehoist/lowerswitchS302
toLOWER.
IftheswitchS302isinREMOTEposition,anunwanted
hoistoperationmayoccurwhentheswitchpasstheHOIST
position.Toavoidthis,usethefollowingprocedure:
1LocatethemotorprotectingswitchS301.
2ReleaseS301bypressingthehandledowntoposition
OFF.
3SetswitchS302topositionSTOP .
4OnS301,pressthehandleuptopositionONtoactivate
themotorprotectingswitch.
5SetswitchS302topositionLOWERtolowerthe
transducershaft.
2Observethatthetransducerislowered.
Thehoistingmotorwillautomaticallystopwhenthe
transducershaftreachesthelowerlimitswitch.
Ifnecessary,theloweringcaneasilybestoppedinany
positionbysettingtheswitchS302topositionSTOP .
3Whenthetransducershafthasbeenloweredtotherequested
position,setswitchS302topositionSTOP.
323775/B
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