MAINTENANCE MANUAL - Meritor

Prepare Parts for AssemblyRemoving Fasteners Secured withAdhesiveIf it’s difficult to remove fasteners secured withDri-Loc®, Meritor specification 2297-T-4180,Loctite® 277 adhesive, or equivalent, use thefollowing procedure.WARNINGTake care when you use Loctite® to avoid seriouspersonal injury. Follow the manufacturer’sinstructions to prevent irritation to the eyes andskin.CAUTIONWhen you remove fasteners securedwith adhesive, slowly heat thefastener to 350°F (177°C). Do not exceedthis temperature, or heat fastenersquickly. Damage to componentscan result.1. Heat a fastener for three to five seconds only.Try to loosen the fastener with a wrench. Donot use an impact wrench or hit the fastenerwitha hammer.2. Repeat Step 1 until you can remove the fastener.1. Use a wire brush to clean the oil, dirt andold adhesive from all threads and threadedholes.2. Apply four or five drops of Meritor Liquidadhesive Loctite® 680 or equivalent insideeach threaded hole or bore. Do not applyadhesive directly to fastener threads. Figure3.10.Install FastenersNew Fasteners with Pre-Applied AdhesiveNOTE:No drying time is required for fasteners withpre-applied adhesive.1. Use a wire brush to clean oil and dirt fromthreaded holes.2. Install new fasteners with pre-applied adhesiveto assemble parts. Do not apply adhesivesor sealants to fasteners with pre-appliedadhesive, or to fastener holes.3. Tighten fasteners to the required torque valuefor that size fastener.Componentes de Fijación Originales o utilizandoAdhesivo Líquido Meritor 2297-C-7049 oAdhesivo Loctite® 680, o equivalente.1 - 4 TO 5 DROPS ON BORE THREADSFigure 3.10NOTE:There is no drying time required for Meritor specificationfor Meritor 2297-C-7049 liquid adhesive,Loctite ® 680 adhesive or equivalent.3.Tighten the fasteners to the required torquevalue for that size fastener.Aplicar el Adhesivoen los Agujeros para Cojinete del DiferencialNOTE:Use Loctite® 638 adhesive, or equivalent forall axles.1. Clean the oil and dirt from the outer diametersof the bearing caps and bearing bores inthe differential and bearing caps. There is nospecial cleaning required.2. Apply axle lubricant to the bearing cones andthe inner diameters of the Bearing caps ofthe main differential. Do not get oil onto theouter diameter of the Bearing cap and do notpermit oil to drip onto the bearing bores.18 MAINTENANCE MANUAL