15. REAR WHEEL/AXLE/SUSPENSION DRIVING MECHANISM MXU 300/250 Measure the wheel runout. Service Limit: Vertical: 2 mm (0.08 in) Lateral: 2 mm (0.08 in) Out of specification Replace wheel. INSTALLATION Apply molybdenum disulfide grease to axle shaft spline end (out side), so the spline grove is filled with grease. Install the rear wheel hub onto the axle. Apply grease Apply grease to the rear wheel hub nut threads and setting surfaces. Install the hub nut onto the axle and tighten the hub nut to the specified torque and further tighten until its grooves align with the cotter pin hole. Torque: 10 kgf-m (100 Nm, 72 lbf-ft) Install cotter pin (new). Do not loosen the wheel hub nut after torque tightening. If the wheel hub nut groove is not aligned with the cotter pin hole, align groove with the hole by tightening up on the wheel hub nut. Always use a new cotter pin. 15-5