WEAR PLATE ASSEMBLY WITH TWO-PART KEY ASSEMBLY

A wear plate assembly includes a base having a slot with an enlarged aperture, and a wear plate having a wear surface and a hold recessed below the wear surface. The wear plate moves between a free condition and an applied condition covering the base. The assembly includes a nut and a key. The nut has a bore to receive the key, and is applicable through the aperture into the slot. The nut moves between a first position registered in the aperture and a second position offset from the aperture where the nut is captured under the base. In the applied condition of the wear plate and the second position of the nut, the bore is registered with the slot and the hold to define a keyway, and the key is applicable to the keyway for engagement with the nut to secure the wear plate on the base.