Oil Seal Replacement If oil leakage around the inner oil seal is noted, replace the oil seal (and axle ring, if required) as follows: 1. Remove wheels and hub 2. Remove and discard old seal. 3. Inspect axle ring. If piƩed or worn, replace as follows: a) Remove old ring. Take care not to damage spindle. b) Clean spindle thoroughly. Shoulder area must be smooth and free from weld spaƩer and burrs. c) If shoulder is not completely smooth apply sealer No. 2 to correct any defects and ensure an oil-Ɵght fit. d) Using axle tool, drive the axle ring firmly on shoulder. Edge of axle ring must be parallel and flush with shoulder face. Remove excess sealer, if used. 4. Install oil seal in wheel hub as follows: a) Remove all burrs from inside hub bore. b) If seal is not pre-coated with BLU-SEAL, or if wheel hub bore is not enƟrely free of nicks or burrs, apply a thin coat of sealer No. 2 to the O.D. perimeter of the oil seal. c) Lay wheel down, brake drum up. Check to ensure that hub cavity is clear of old grease, grit and metal parƟcles-steam clean if possible. Check bearing cones on spindle for proper slip fit. Install inner bearing in hub bore. Place seal in starƟng posiƟon in bore. d) Using hub tool and a hammer, drive seal squarely and evenly into bore. Seal should boƩom evenly all around against bearing cup. DO NOT conƟnue to hammer aŌer seal has boƩomed evenly, as damage to the seal will result. 5. Coat seal lip and inside diameter of inner bearing cone, then install wheel on axle. Take care not to damage seal during installaƟon. If wheel does not slip back in place easily, remove and check for burrs or possible component damage. 6. Install outer bearing, jam nuts and washer. Adjust bearing pre-load (see Wheel Bearing Adjust- ment). 7. Install gasket and hub cap. 8. Refill hub with recommended oil. See Wheel Bearings and Seals. 1 to 1-1/2 pints are required per hub, depending on wheel well de-sign. A minimum of 1 pint is required for proper lubricaƟon. Allow plenty of Ɵme for the oil to seep through the bearings. 9. Re-install vent plug.
35
Made with FlippingBook Annual report maker