Installingthehullunit
Procedure
1Observethetwoholesprovidedonthegantry.
[_____]Ok
2Design,manufactureandmountpropermechanicalsupportbracketstoprevent
vibration.
[_____]Ok
3Verifythatitispossibletoremovethesupportbracketsifmaintenanceisrequired.
[_____]Ok
Transduceralignment
Irrespectiveofthehullunitorientation,thetransducershallnotbemechanicallyaligned.
TransduceralignmentisperformedintheSU90ProcessorUnitbyrotatingtheecho
presentationonthedisplay.
Relatedtopics
•Alignmentofthesonarpictureonpage193
Visualinspectionofthetransducer
ALowerpartoftheshaftsleeve
BTransducershaft
CTransducerwithredprotectivecoating–Donotdamage!
Purpose
Whilethevesselisstillindrydock,thetransducersurface
mustbeinspectedforpotentialdamagesthathavebeeninicted
duringtheinstallation.
Important
Theredprotectivecoatingisanvitalpartofthetransducer.Itis
veryimportantthatneitherthiscoatingnortheinternalpartsof
thetransduceraredamagedduringthehandlingandinstallation.
Anyholesand/orscratchesinthetransducersurfacewillallowwatertopenetratethe
transducer.Ifaleakoccurs,thetransducermustbereplaced.
Relatedtopics
•Supportinformationonpage33
•Loweringandhoistingthetransducermanuallyusingthehandcrankonpage74
381293/A
73
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