MainApplications
Formanyyearsaircraftoperatorshavebeenseekingto
rationalisethegreasesusedonaircraftandtoreducethe
numberofdifferentgreasesintheirinventories.Recently
Boeingbeganresearchonanew,generalpurpose,corrosion-
inhibitinggrease.Theaimwasforanon-claybasedgrease
thatwouldprovidelongerlifeforcomponentsand
mechanismsandpossessimprovedwearandcorrosion
resistance.ThisledtotheintroductionofthenewBoeing
SpecificationBMS3-33B.
·
Owingtothewiderangeofoperatingtemperatures,loads
andotherenvironmentalconditionsrequiredforvarious
aircraftcomponents,severaldifferenttypesofgreasewith
differentdesirablepropertiesareusedduringroutine
lubricationofaircraftcomponents.Boeing,indevelopingtheir
BMS3-33Bspecification,tookaccountofthepropertiesofthe
differentgreasetypesusedonaircraftandwrotea
specificationforagreasewhichwouldprovideimproved
performanceandwhichcouldbeusedinthewidestpossible
rangeofgreaseapplications.
·
AeroShellGrease33isapprovedtoBMS3-33Bandoffersthe
improvedperformancepropertiesrequiredbythis
specification.
·
AeroShellGrease33canbeusedforroutinelubricationon
BoeingaircraftwhereMIL-PRF-23827CorBMS3-24is
specified.AeroShellGrease33canalsobeusedinsome
applicationsonBoeingaircraftwhichrequireuseofMIL-G-
21164.OtherapplicationsonBoeingaircraftwhichrequire
useofMIL-G-21164andothergreasesarebeingreviewed
andinduecourseBoeingwillissuedetailsofthefullrangeof
applications.Forthecurrentstatus,refertothelatestissueof
BoeingServiceLetter"BMS3-33BGeneralPurposeAircraft
Grease".
·
AeroShellGrease33canbeusedforroutinelubricationin
applicationswhereMIL-PRF-23827Cisspecifiedonaircraft
manufacturedbyMcDonnellDouglas,Airbus,BAeRegional
Aircraft,Canadair,Lockheed,Embraer,FokkerandGulfstream
(exceptforwheelbearings,applicationsabove121
0Cand
slidingapplicationsrequiringmolybdenumdisulphide).
·
OtheraircraftmanufacturersareevaluatingAeroShellGrease
33withtheaimofapprovingitforuseontheiraircraft.
Operatorsshouldregularlycheckwiththesemanufacturersfor
thelateststatus.
·
UseofAeroShellGrease33canprovideoperatorswiththe
followingbenefits:
·
Reducedinventories;
Reducedmaintenancelabourcosts;
Lesschanceofproductmis-application.
Specifications,Approvals&Recommendations
U.S.:ApprovedMIL-PRF-23827C(TypeI)
·
Boeing:ApprovedBMS3-33B
·
Airbus:ApprovedAIMS09-06-002
·
COMACApprovedtoQPL-CMS-OL-302
·
Forafulllistingofequipmentapprovalsandrecommendations,
pleaseconsultyourlocalShellTechnicalHelpdesk.
Compatibility&Miscibility
AeroShellGrease33containsasyntheticoilandmustnotbe
usedwithincompatiblesealmaterials.
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