| 摘要 |
A boom assembly attaches to the fifth wheel of a tractor for towing a truck or other vehicle. The assembly has a main frame with a pair of uprights and a pair of pivotally mounted legs. The vehicle is secured at longitudinal spaced locations to the legs. Hydraulic cylinders are actuated to force the legs to a pivoted position which lifts the legs and the towed truck to an elevated position for towing.
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