MG MG6 Series 2011 - Flexible Pipes and Hoses; Version 2.0

GeneralInformation
FlexiblePipesandHoses
General
Whenremovingandinstallingexiblehydraulicpipesand
hoses,ensurethatthefollowingpracticesareobservedto
ensurecomponentserviceability.
•Cleanendttingsandtheareasurroundingthemas
thoroughlyaspossible.
•Obtainappropriateplugsorcapsbeforedetachinghose
endttings,sothattheportscanbeimmediatelycovered
topreventtheingressofdirt.
Cleanhoseexternallyandblowthroughwithairline.
Examinecarefullyforcracks,separationofplies,security
ofendttingsandexternaldamage.Rejectanyfaulty
hoses.
•Whenrettingahose,ensurethatnounnecessarybends
areintroduced,andthathoseisnottwistedbeforeor
duringtighteningofunionnuts.
•Fitacaptosealahydraulicunionandaplugtoitssocket
afterremovaltopreventingressofdirt.
•Absolutecleanlinessmustbeobservedwithhydraulic
componentsatalltimes.
Afteranyworkonhydraulicsystems,carefullyinspect
forleaksunderneaththevehiclewhileasecondoperator
appliesmaximumbrakepressuretothebrakes(engine
running)andoperatesthesteering.
FuelSystemHoses
Allfuelhosesaremadeupoftwolaminations,anarmoured
rubberoutersleeveandaninnervitoncore.Ifanyofthefuel
systemhoseshavebeendisconnected,itisimperativethatthe
internalboreisinspectedtoensurethatthevitonlininghas
notbecomeseparatedfromthearmouredoutersleeve.A
newhosemustbettedifseparationisevident.
CoolingSystemHoses
ThefollowingprecautionsMUSTbefollowedtoensurethat
integrityofcoolinghosesandtheirconnectionstosystem
componentsaremaintained.
HoseOrientationandConnection
Correctorientationofcoolinghosesisimportantinensuring
thatthehosedoesnotbecomefatiguedordamagedthrough
contactwithadjacentcomponents.Where'timing'marks(1)
areprovidedonthehoseandcorrespondingconnection,these
mustbeusedtoensurecorrectorientation.Hosesmustbe
pushedfullyontotheirconnectionpoints.Usually,amoulded
form(2)onthestubpipeprovidesapositiveindicator.
HoseClip
Markings(1)areusuallyprovidedonthehosetoindicatethe
correctclipposition.Ifnomarkingsareprovided,positionthe
clipdirectlybehindtheretaininglipattheendofthestubas
shown.Wormdriveclipsshouldbeorientedwiththecrimped
sideofthedrivehousing(2)facingtowardstheendofthehose,
orthehosemaybecomepinchedbetweentheclipandthestub
piperetaininglip.Wormdriveclipsshouldbetightenedto3
Nmunlessotherwisestated.Ensurethathoseclipsdonotfoul
adjacentcomponents.
HeatProtection
Alwaysensurethatheatshieldsandprotectivesheathingare
ingoodcondition.Replaceifdamageisevident.Particular
caremustbetakenwhenroutinghosesclosetohotengine
components,suchastheexhaustmanifoldandtheExhaustGas
Recirculation(EGR)pipe.Hoseswillrelaxanddeectslightly
Version2.0
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