Lego HGV Tow Truck (42008)
Lego HGV Tow Truck (42008).

This has a fully height adjustable rear boom which is powered by a hydraulic piston.

The T bar on the back is also controlled by an hydraulic piston as well as the extendible boom.

The winch is motorised as is the ground anchors on the back.

The air tank powering the hydraulics is powered by a piston pumping air into it via the motor on the bottom of the model.
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