Eaton Airflex WSB11206 Installation, Operation And Maintenance Manual

EATON WSB11206 WCSB Tensioner / Brake with ORB Coolant Ports Installation, Operation and Maintenance Manual E-CLCL-II009-E August 2015 23WCSB tensioner / brake with ORB coolant ports4.5 WC Wear Plate ReplacementNote: As of July, 2014 Wear plate replacement kits for the24WCSB and 36WCSB are supplied with sealant tape. This isnow the preferred method of sealing the water cavity. Wear platereplacement kits for the 24WCSB and 36WCSB prior to July, 2014used Loctite Superflex ® #596 Sealant. Should the wear platereplacement kit being used contain Loctite Superflex® #596Sealant, refer to capitalize section 4.5.6 for assembly procedures.Note: When replacing wear surfaces, it is recommended thatthe mating friction material be replaced or machined flat toensure good contact between the mating surfaces. See Table 7for wear limits.4.5.1 Disassemble WCSB tensioner / brake assemblyper Section 4.3.4.5.2 Remove the screws and locknuts holding the wearplates and remove the wear plates. If the wear platescannot be easily lifted off, gently tap the O.D. tobreak the gasket seal.CautionDo not attempt to break the gasket seal by pryingbetween the wear plate and housing. Damage to thesealing surfaces may occur.4.5.3 Inspect the water passages and, if necessary, use awire brush to clean them. If re-painting is necessary,sand blast the water passages and paint the surfaceswith PLASITE ® Epoxy #9052 Polymine coating. Dryfilm thickness should be 8 to 12 mils (0,2 to 0,3 mm).Be careful not to allow the paint to get into the sealgrooves or onto the face of the support nubs.CautionFollow manufacturer's instructions and proper safetyprecautions for application of epoxy coatings.CautionIf nubs are severely corroded, wear plates maynot be properly supported. Replace pressure plate,reaction plate or end plate, if necessary.4.5.4 For wear plate replacement kits that contain LoctiteSuperflex ® #596 Sealant proceed to section 4.5.6 forassembly instructions.4.5.5 Assembly with Gasket Tape for sizes 24” and 36”Note: The End Plate (117a), Pressure Plate (14), and ReactionPlate(s) (31) will be referred to as IRON in the followingparagraphs. Refer to Figure 22 for item number referencesshown in parenthesis (#).4.5.5.1 Preparation and cleaning the IRON:Ensure that the IRON surface is smooth and free ofpaint scale, burrs and corrosion. Thoroughly cleanboth the inner and outer lands which will receive thegasket. Use a solvent based cleaner such as acetone,mineral spirits or a general-purpose wax / oil / greaseremover turning the wipe until it is free of new darkdebris. Finish the cleaning process by blowing off linton the sealing surface.CautionUse only clean, dry air for blow-off.CautionFollow manufacturer’s instructions and proper safetyprecautions for the use of solvent based cleaners(acetone, mineral spirits or general purpose) foroil/grease remover.4.5.5.2 Preparation and cleaning the Copper Wear PlateEnsure that the wear plate surface is smooth andfree of burrs and corrosion. Thoroughly clean both theouter and inner areas which will be in contact withthe gasket tape. Use a solvent based cleaner such asacetone, mineral spirits, or a general-purposewax/oil/grease remover. Finish the cleaning processby blowing off lint on the sealing surface.CautionUse only clean, dry air for blow-off.CautionFollow manufacturer's instructions and proper safetyprecautions for the use of solvent based cleaners(acetone, mineral spirits or general-purpose) foroil/grease remover.4.5.5.3 Preparation of the Gasket Tape EndsCut the leading and trailing ends of the gasket tape at45 degrees per Figure 9. This initial step is required toinsure a smooth transition of the leading and trailingends of the tape when it is overlapped per section4.5.5.4 (b).Tape/Gasket-Overlap a minimumof 0.44" (11.2 mm)Skive ends forsmooth overlapFigure 9