How do I install the cutting head shield?

Remove the wing nut and washer from the cutting head shield, insert the short tab without a hole into the slot on the shield, rotate the shield counterclockwise to align holes on both parts, push the square bolt through, place the washer onto the bolt, and screw the wing nut tightly until the shield is securely in place (Fig. 2 for model WC210/CMXGTAMD25CC). (Page 8)