A heavy hauler is a very large transporter for moving oversize loads too large for road travel without an escort and special permit. A heavy hauler typically consists of a Ballast Tractor and a hydraulic modular trailer, or using a 6x4 tractor unit with a lift axle pulling a removable gooseneck trailer or double-drop trailer.
A heavy hauler is a very large transporter for moving oversize loads too large for road travel without an escort and special permit. A heavy hauler typically consists of a Ballast Tractor and a hydraulic modular trailer, or using a 6x4 tractor unit with a lift axle pulling a removable gooseneck trailer or double-drop trailer.
Source: Wikipedia "Heavy hauler" · CC BY-SA 4.0
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