| 摘要 |
Embodiments provide a grading and/or scarifier apparatus configured to be coupled to a motor vehicle, such as a tractor. The apparatus may include a rear mounted frame supporting a blade assembly and/or a scarifier. The scarifier may include a first frame, a second frame slideably disposed through the first frame, and scarifier shanks retained by the second frame. The blade assembly may be pivotable around a substantially vertical axis extending from the blade assembly and/or around a substantially horizontal axis extending through the center of the motor vehicle. The blade assembly may include adjustable end plates at each end, which are maintained at a constant angle to the horizontal axis as the blade is pivoted around the vertical axis. The apparatus may further include trailing wheels that are pivotally attached to the frame and selectively laterally displaceable with respect to the horizontal axis.
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