Presentation on theme: "Multiple Lip Seal MLS Introduction"— Presentation transcript:
1 Multiple Lip Seal MLS Introduction March 2005ArvinMeritor Confidential
2 Multiple Lip Seal (MLS) The New Meritor MLS seals will be introduced starting March 7th, 2005 at ARM assembly plantsAxle models/positions affected are:14X, 16X, 18X & 38X Forward Rear Drive Axle Input (FUI Position)14X and 16X Forward Rear Drive Axle Output (FUO Position)14X, 16X and 18X Rear Rear Drive Axle Input (RUI Position)ArvinMeritor Confidential
3 FUI Position 145, 160 and 185 Forward Rear Drive Axle Input A-1205-X-2728 SealFUI and FUO positions are soft unitized (two piece seal with seal and running sleeve combination) and will require a running sleeve to be pre-positioned on the yoke prior to yoke installation to the shaft.FUI and FUO sleeves eliminate the requirement for internal seal locators/stops to set the position and preload of dirt excluder lips. Internal locators generate heat and debris which can affect long term seal life.A-1199-U-4025 Sleeve
4 FUO Position 145, 160 Forward Rear Drive Axle Output Sealant Bead on Seal O.D.Two Piece Seal ConstructionSeal in Bore, Sleeve on YokeDeflector Integrated into Running SleeveImproved Contaminant ExclusionRadial Lips vs. Axial LipsTo Handle EndplayOn Stationary Member – Not affected by Centrifugal ForceMultiple Exclusion Lips with Vents to Prevent Internal VacuumPremium Fluoroelastomer MaterialBroad Temperature Operating RangeExcellent Abrasion Resistance and WearabilitySteel-on-Steel Contact Between Yoke and Seal Running SurfaceImproved Heat DissipationBetter AlignmentElimination of Contact Bumpers Between Stationary & Rotating ElementsEliminates Heat and Wear During Break-inA-1205-Y-2729 SealA-1199-V-4026 Sleeve
6 RUI Position 145/160/185 Rear Rear Drive Axle Input A-1205-Z SealA-1205-A /185 SealThe RUI seal position is fully unitized as current so the assembly procedures will not change from current when installing the yoke. Internal locators/stops are not present in this seal position as well.With the RUI position, the outer bearing adjacent to the yoke is positioned with bearing backface (large end) against the yoke so the sleeve can be located with the bearing. The bearing arrangement is different for the FUI and FUO positions therefore the sleeve must be assembled to the yoke.
8 MLS Test Info Lab Testing Mud Slurry Testing Successfully Completed Drip Slurry Testing Successfully CompletedHot Oil Durability Testing– Excellent Results – Still RunningDust Testing – Excellent Results – Still RunningTorque Testing Successfully CompletedCold Testing Successfully CompletedInstallation Tests Successfully CompletedSpring Pop Off Tests Successfully Completed
9 MLS Test Info Field Testing 100 Vehicle Installations for All Seal Positions on RT145Dec 03 - April 04 install6 Installations on RS160July 04 installTwo Issues to Date – Not Seal RelatedIncompatible Top off FluidLoose Yoke NutRT145 Data 118k Mile Average/Vehicle26k min, 213k max
10 MLS Field Service Kit Field Service Tool Kit (Kit 4463) contains: Tech Bulletin (TP-0446) with Field Installation ProceduresSeal DriversLocation Decal (TP-0464)Installation CD (TP-0531)
11 Multiple Lip Seal (MLS) Introduction ARM Manufacturing Implementation PlansSet – March 7th, 2005 ImplementationPILCompletePIL 430Aftermarket Seal AvailabilityAvailable through Florence & BramptonProduct ProfileAvailableSP-0537
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