Section 4 • Repair ProceduresPart No. 122985 S-80 • S-85 • S-80X 4 - 67February 20122WD Steer Axle Components11-1Yoke and HubHow to Remove the Yokeand Hub1 Remove the pin retaining fasteners from boththe steering cylinder and the tie rod cylinderpivot pins. Use a soft metal drift to remove thepins.2 Loosen the wheel lug nuts. Do not removethem.3 Block the non-steer wheels and center a liftingjack of ample capacity under the steer axle.4 Raise the machine approximately6 inches / 15 cm and place blocks under thechassis for support.5 Remove the lug nuts. Remove the tire andwheel assembly.6 Remove the pin retaining fasteners from theyoke pivot pins.7 Support and secure the yoke and hub assemblyto a lifting jack.8 Use a slide hammer to remove the upper yokepivot pin, then use a soft metal drift to drive thelower yoke pivot pin down and out.9 Remove the yoke and hub assembly from themachine.Crushing hazard. The yoke andhub assembly may becomeunbalanced and fall if not properlysupported and secured to thelifting jack when it is removed fromthe machine.How to Remove the Huband Bearings1 Loosen the wheel lug nuts. Do not removethem.2 Block the non-steer wheels and center a liftingjack of ample capacity under the steer axle.3 Raise the machine approximately6 inches / 15 cm and place blocks under thechassis for support.4 Remove the lug nuts. Remove the tire andwheel assembly.5 Remove the dust cap, cotter pin and castle nut.Note: Always replace the cotter pin with a new onewhen installing the castle nut.6 Pull the hub off the spindle. The washer andouter bearing should fall loose from the hub.7 Place the hub on a flat surface and gently prythe bearing seal out of the hub. Remove therear bearing.
