Products

AeroShell Fluid 41 is a mineral hydraulic oil manufactured to a very high level of cleanliness, and possesses improved fluid properties. AeroShell Fluid 41 contains additives which provide excellent low temperature fluidity as well as exceptional anti-wear, oxidation – corrosion inhibition and shear stability. In addition metal de-activators and foam inhibitors are included in this high viscosity index fluid to enhance performance in hydraulic applications. AeroShell Fluid 41 is capable of wide temperature range operation.

AeroShell Fluid 41 is dyed red.

Main Applications:
AeroShell Fluid 41 is intended as an hydraulic fluid in all?modern aircraft applications requiring a mineral hydraulic?fluid. AeroShell Fluid 41 is particularly recommended where?use of a “superclean” fluid can contribute to improvements in?component reliability, and can be used in aircraft systems?operating unpressurised between ?54?C to 90?C and pressurised between ?54?C to 135?C.

AeroShell Fluid 41 should be used in systems with synthetic?rubber components and must not be used in systems?incorporating natural rubber.

AeroShell Fluid 41 is compatible with AeroShell Fluids 4, 31,?51, 61 and 71 and SSF/LGF.

Chlorinated solvents should not be used for cleaning hydraulic?components which use AeroShell Fluid 41. The residual solvent?contaminates the hydraulic fluid and may lead to corrosion.

AeroShell Grease 33 is a synthetic universal airframe grease composed of 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.

Main Applications:

• For many years aircraft operators have been seeking to rationalise the greases used on aircraft and to reduce the number of different greases in their inventories. Recently Boeing began research on a new, general purpose, corrosion inhibiting grease. The aim was for a non-clay based grease that would provide longer life for components and mechanisms and possess improved wear and corrosion resistance. This led to the introduction of the new Boeing Specification BMS 3-33B.
• Owing to the wide range of operating temperatures, loads and other environmental conditions required for various aircraft components, several different types of grease with different desirable properties are used during routine lubrication of aircraft components. Boeing, in developing their BMS 3-33B specification, took account of the properties of the different grease types used on aircraft and wrote a specification for a grease which would provide improved performance and which could be used in the widest possible range of grease applications.
• AeroShell Grease 33 is approved to BMS 3-33B and offers the improved performance properties required by this specification.
• AeroShell Grease 33 can be used for routine lubrication on Boeing aircraft where MIL-PRF-23827C or BMS 3-24 is specified. AeroShell Grease 33 can also be used in some applications on Boeing aircraft which require use of MIL-G21164. Other applications on Boeing aircraft which require use of MIL-G-21164 and other greases are being reviewed and in due course Boeing will issue details of the full range of applications. For the current status, refer to the latest issue of Boeing Service Letter “BMS 3-33B General Purpose Aircraft Grease”.
• AeroShell Grease 33 can be used for routine lubrication in applications where MIL-PRF-23827C is specified on aircraft manufactured by McDonnell Douglas, Airbus, BAe Regional Aircraft, Canadair, Lockheed, Embraer, Fokker and Gulfstream (except for wheel bearings, applications above 121?C and sliding applications requiring molybdenum disulphide).
• Other aircraft manufacturers are evaluating AeroShell Grease 33 with the aim of approving it for use on their aircraft. Operators should regularly check with these manufacturers for the latest status.
• Use of AeroShell Grease 33 can provide operators with the following benefits:

1. Reduced inventories;
2. Reduced maintenance labour costs;
3. Less chance of product mis-application.