Textron Cessna - Page 47

McCAULEYPROPELLERSYSTEMS
CONSTANTSPEEDCOMPOSITEOWNER/OPERATOR
INFORMATIONMANUAL
(7)Allowthesealantenameltodryforatleastonehourat65to75°F(18to24°C)beforeyouhandle
thebootandstraparea,atleast12hoursbeforestartingengine,and24hoursbeforeoperating
thedeiceboots.
L.FinalElectricalCheck
(1)Checktheelectricalresistancebetweenthebootleads.RefertoT able202,DeiceBoot
ResistanceValuesfortheresistancevaluesofthebootinstalled.
(2)Checkforintermittentopencircuitsbytensioningthedeicebootleadsand/orstrapslightlywhile
measuringresistance.Also,presslightlyontheentiredeicebootheatingelementsurfaceand
intheareaadjacenttoleads.Resistancemustnotuctuate.Thischeckisimportantbecause
anintermittentopencircuitmaynotshowupuntilthepropellerisrotating.
7.LeadStrapInstallation
A.InstallingLeadStraps(IntegralLeadTypeBoot)
(1)Routeleadstrapstakingcarenottotwistthestrap.Theleadstrapsshouldbeclampedtothe
spinnerbulkheadwithclampsprovided.Allexcessstraplengthshouldfallbetweenthisclamp
andthedeiceboot.Arubbergrommetistobeusedwhenroutingthestrapthroughthespinner
bulkhead.Attachleadstothecorrespondingslipringstudswithnutsandwashersprovided.
NOTE:Leadsfortheleadstrapsaremarkedforattachmenttotheslipringstuds.Referto
theairplaneserviceormaintenancemanualforinstructionstoattachthedeiceboot
leadstrapstotheslipringassembly.
(2)Afterinstallationoftheleadstrapsiscomplete,makesurethatthelengthissufcientsoasnot
tobeplacedintensionwhenthepropellerismovedthroughfullpitchrange.
CAUTION:Donotrunengineswithspinnerdomeremoved;damagewillresult
tothewiringharnessesorleadstrapsduetothecentrifugalforce.
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©McCauleyPropellerSystemsJan9/2017