Simrad SX90 - INSTALLATION REV C - Bleeding Air Cock; Mechanical Support; Transducer Alignment

Hullunitinstallation
Bleedingaircock
Figure15Bleeding
aircock
(CD015401C)
A
B
C
Toavoiddamagetothetransducerby
thetransmissioninairinsidethetrunk,
apipewithaminimuminsidediameter
of10mmmustbeattachedtotheair
bleedingcock.Thisventshouldberun
withcontinuousrisetothemaindeck
orthroughthevessel’sside.Make
suretheairbleedingcockisopened.
AMinimum10mminternal
diameter
B3/8”pipethread
CValveshowninopenedposition
Mechanicalsupport
Note
Toensurethesafetyofthesonarsystemandthevessel,itisvery
importantthatthemechanicalsupportofthehullunitgantry
issatisfactory.
Topreventunwantedvortexinducedvibration,thehullunit
mustbesecuredtothebulkhead.Usethetwopre-drilledholes
onthegantrytomountsupportbracketsinthefore-and-aftand
sidewaysdirection.Itmustbepossibletoremovethesupport
bracketsifmaintenanceisrequired.
Note
Ifyoudonotinstallapropermechanicalsupportforthehullunit
gantry,theguaranteewillbevoid!
Transduceralignment
Eventhoughyoumayhaveinstalledthehullunitoriented
differentlythanshowninthischapter,thetransducershalln o t
bemechanicallyaligned.
307531/C
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