Installation Instructions

3.5Compatibledriveunits
Thedriveunitinterfaceswiththevessel’ssteeringsystem.Thetypeofdriverequireddependsonthetype
ofvesselandcapacityoftheassociatedsteeringsystem.
Raymarineautopilotsystemsaccommodatehydraulic,mechanicalandpowerassistedsterndrivesystems.
DrivecategoryAvailabletypes
Suitable
ACU
*Max
output
Type0.5
ACU-100
7A
Type112Vdconly
ACU-150
12A
Type112V/24VdcACU-200
15A
Type2
ACU-400
30A
Type3
ACU-400
30A
Hydraulicpumps
Raymarineautopilotsconnecttohydraulicsteeringsystemsusingarugged
hydraulicpumpmatchedtothecapacityofthehydraulicsteeringsystem.
Tondasuitablepump,you'llneedtoknowthesize(incc)ofthehydraulic
cylinderram(s)mountedtotherudderonvesselsfeaturinganinboardengine,
ortothedriveunitonvesselsfeaturingoutboardengines.Refertoyoursteering
systemdocumentationforthisinformation.Alternatively,youcanlookonthe
cylinderramitselfforthebrandandmodelnumber.
Onceyouhavethisgure,refertotheCylinderRamSizeChartontheRaymarine
websitetodeterminewhichhydraulicautopilotpumpiscompatiblewithyour
vessel'shydraulicsteeringsystem:http://www.raymarine.co.uk/view/?id=209.
ConstantRunning
pump(solenoid)
ACU-300
5A
Type2(forvessels
withamaximum
displacementof
22,000Kg)
ACU-400
30A
Mechanicalhydrauliclineardrives
Designedforlargermechanically-steeredvesselsover20,000kg,hydraulic
lineardrivesconsistofareversingpump,reservoirandhydraulicram.
Ahydrauliclineardriveunitconnectstotherudderstockviaanindependent
tillerarm.Accessoryttingsfromyoursteeringsystemmanufacturermaybe
required.Thevessel’ssteeringsystemmustbecapableofbeingback-driven
fromtherudder.
Correctdriveselectiondependsonthemaximumdisplacementofyourvessel.
Additionally,boththevessel’sttingstructureandthetillerarm(orrudder
quadrant)mustbeabletocopewiththepeaklevelsofthrustgeneratedbythe
hydrauliclineardrive.Forpeakthrustdata,refertothetechnicalspecication
sectionoftheHydraulicLinearDriveinstallationinstructions.
Type3(forvessels
withamaximum
displacementof
35,000Kg)
ACU-400
30A
Type1(forvessels
withamaximum
displacementof
11,000Kg)
ACU-200
15A
Type2Short
(forvesselswith
amaximum
displacementof
15,000Kg)
ACU-400
30A
Mechanicallineardrives
Usedinsailingvessels,themechanicallineardrivemovestherudderdirectly
bypushingthetillerarmorarudderquadrant.
Correctdriveselectiondependsonthemaximumdisplacementofyourvessel.
Type2Long
(forvesselswith
amaximum
displacementof
20,000Kg)
ACU-400
30A
Type1(forvessels
withamaximum
displacementof
11,000Kg)
ACU-200
15A
Mechanicalrotarydrives
Designedforpowerandsailingvesselsystemsthatcanbedrivenfromthehelm
positionthroughachainandsprockete.g.cableandrod.
Optionaldrivesprocketsandmodicationtothesteeringchainmayberequired.
Correctdriveselectiondependsonthemaximumdisplacementofyourvessel.
Type2(forvessels
withamaximum
displacementof
20,000Kg)
ACU-400
30A
Planningtheinstallation
17