Avbook intro/notes a/w sect

AEROSHELL GREASE 33
AeroShell Grease 33 is a synthetic universal airframe grease composed of Use of AeroShell Grease 33 can provide operators with the following a lithium complex thickened synthetic base oil with corrosion and oxidation inhibitors and load carrying additives. The useful operating temperature range is –73°C to +121°C. • Easier maintainability (one major grease for most applications)• Reduced maintenance labour costs APPLICATIONS
• Less chance of product mis-application For many years aircraft operators have been seeking to rationalise the AeroShell Grease 33 contains a synthetic oil and must not be used with greases used on aircraft and to reduce the number of different greases in incompatible seal materials. Refer to the General Notes at the front of this their inventories. Recently Boeing began research on a new, general purpose, corrosion-inhibiting grease. The aim was for a non-clay basedgrease that would provide longer life for components and mechanisms and possess improved wear and corrosion resistance. This led to the SPECIFICATIONS
introduction of the new Boeing Specification BMS 3-33.
Owing to the wide range of operating temperatures, loads and other environmental conditions required for various aircraft components, severaldifferent types of grease with different desirable properties are used during routine lubrication of aircraft components. Boeing, in developing their BMS3-33 specification, took account of the properties of the different grease types used on aircraft and wrote a specification for a grease which wouldprovide improved performance and which could be used in the widest possible range of grease applications.
NATO Code
AeroShell Grease 33 is approved to BMS 3-33A and offers the improvedperformance properties required by this specification.
Joint Service Designation
AeroShell Grease 33 can be used for routine lubrication on Boeing aircraftwhere MIL-PRF-23827C or BMS 3-24 is specified. AeroShell Grease 33 can also be used in some applications on Boeing aircraft which require useof MIL-G-21164. Other applications on Boeing aircraft which require use ofMIL-G-21164 and other greases are being reviewed and in due courseBoeing will issue details of the full range of applications. For the currentstatus, refer to the latest issue of Boeing Service Letter "BMS 3-33 GeneralPurpose Aircraft Grease".
AeroShell Grease 33 can be used for routine lubrication in applicationswhere MIL-PRF-23827C is specified on aircraft manufactured by McDonnellDouglas, Airbus, BAe Regional Aircraft, Canadair, Lockheed, Embraer,Fokker and Gulfstream (except for wheel bearings, applications above121°C and sliding applications requiring molybdenum disulphide).
Other aircraft manufacturers are evaluating AeroShell Grease 33 with theaim of approving it for use on their aircraft. Operators should regularlycheck with these manufacturers for the latest status.
www.shell.com/aviation
The AeroShell Book
PROPERTIES
BMS 3-33A
www.shell.com/aviation
The AeroShell Book

Source: http://mjaviation.com.br/catalogos/Ficha_de_Seguranca_Aeroshell_Grease_33_En_Tds.pdf