| 摘要 |
A tow truck has a telescopically collapsible boom which can be telescoped and retracted into the flatbed of the truck to permit the truck to be used for other purposes. The boom is raised and lowered by an improved hydraulic jack arrangement which distributes the load of the towed vehicle more effectively between the front and the rear wheels for improved stability and load carrying capacity. When in a lowered, retracted position the boom can support the usual towing straps and tow bar in a manner which enables the tow truck to be backed toward the vehicle in a wedging action to provide improved access to the frame of that vehicle to facilitate the attachment of the towing hooks to the frame.
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