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scraper ![click to hear : scraper click to hear : scraper](../../images/speaker-vert.gif)
Machine that uses a blade to scrape the ground or roadbed and store the rubble in a bowl for disposal.
tractor engine compartment ![click to hear : tractor engine compartment click to hear : tractor engine compartment](../../images/speaker-vert.gif)
Part of the machine made up of a powerful diesel engine and a cab from which to drive and operate it.
cutting edge ![click to hear : cutting edge click to hear : cutting edge](../../images/speaker-vert.gif)
Usually toothed blade that is mounted on the front of the bowl; it scrapes off the top layer of a roadway or other surface.
draft arm ![click to hear : draft arm click to hear : draft arm](../../images/speaker-vert.gif)
One of two shafts on each side that is supported by the draft tube; the bowl is raised and lowered between them.
draft tube ![click to hear : draft tube click to hear : draft tube](../../images/speaker-vert.gif)
Transverse tube welded to the gooseneck; it supports the two draft arms and uses hydraulic cylinders to lower and raise the bowl.
elevator ![click to hear : elevator click to hear : elevator](../../images/speaker-vert.gif)
Belt fitted with chains and vanes that pulverizes the excavated material and chucks it into the bowl; in reverse gear it empties the bowl.
gooseneck ![click to hear : gooseneck click to hear : gooseneck](../../images/speaker-vert.gif)
Arch serving as a coupling between the bowl and the tractor.
steering cylinder ![click to hear : steering cylinder click to hear : steering cylinder](../../images/speaker-vert.gif)
One of two hydraulic cylinders on each side of the gooseneck that articulates with the bowl behind the tractor.
bowl ![click to hear : bowl click to hear : bowl](../../images/speaker-vert.gif)
Open container in the front with a cutting edge; it is loaded and unloaded while in operation and removed for transport.