| 摘要 |
A wheel lift tow accessory device includes coupling knuckles which are pinned to the ends of the piston rods of two hydraulic cylinders, which are used to deploy and retract the rotatable arms of the wheel lift arm accessories. A plate of the wheel lift arm accessory has a recess to couple with a groove in the attachment knuckle. The plate is welded to the rotating subassembly of each of the two wheel lift arm accessories. A rotary cam pin lock is securely welded to the same subassembly and positioned in registration with the open end of the recess is used to lock the knuckle securely in place or to permit its withdrawal from the recess when detaching each removable wheel lift arm.
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