Name: Simrad SU90
Brand: Simrad
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SimradSU90

Aboutthesonartrunkinstallation

(CD015415-006)

Thesonartrunkprovidesthephysicalfoundation

fortheentirehullunitgantry.Thetrunkfurther

penetratesthehull,anditisthereforeacrucial

partofthehullunitassembly.Inordertoensure

propersonaroperation,thelocationofthesonar

trunkmustbecarefullyselected.

Atrunkwithablindcover–approvedbyDet

norskeVeritas(DnV)–canbeorderedfrom

KongsbergMaritimeasanoptionaldelivery,orit

maybemanufacturedbytheinstallationshipyard

basedonthedrawingsinthismanualandthe

propertiesofthehull.

Note

IfyouarereplacinganSX90sonarwithanewSU90sonar ,youwillnotneedtoinstall

anewtrunk.Adedicatedextensionmodulecanbeprovidedtoincreasetheheightof

theexistingtrunk.

Note

Theinstallationshipyardmustprovideallnecessaryinstallationdrawings,andif

required,thesemustbeapprovedbytheapplicableauthorities.

Adedicatedgasket(O-ring)isprovidedwiththehullunit.Thisgasketwillprovidea

watertightconnectionbetweentheinstallationtrunkandthebottomofthetransducer

shaftsleeve.Duringtrunkinstallation,makesurethatthisgasketiskeptsafefrom

damage,andthatthetopofthetrunkiskeptclean,smoothandwithoutphysicaldamage

suchasscratchesordents.

ProperO-ringlubricationmustbeappliedbeforethehullunitismounted.

381293/A

Simrad SU90 Installation Manual

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