What is Excavator?
[[File:HY-MAC 1501.jpg|thumb|right|250px|{{Center|An excavator}}]] An '''excavating machine''', also known as an '''excavating vehicle''' or '''excavator''' or a '''digging machine''', '''digging vehicle''', '''digger''', '''scooping machine''', '''scooping vehicle''', '''scooper''', '''backhoeing machine''', '''backhoeing vehicle''', '''backhoer''' or '''rubber duck''' or simply a '''scoop''', '''backhoe''', '''hoeing machine''', '''hoeing vehicle''', '''hoer''' or '''hoe''', is a piece of [[heavy equipment (construction)|heavy construction equipment]]. Excavators are used to dig in the [[ground]] or to move large [[wikt:object|object]]s.<ref name=WG>{{cite web |url=http://www.wisegeek.org/what-is-an-excavator.htm |title=What is an Excavator? |publisher=WiseGeek/Conjecture Corporation|access-date=11 August 2015}}</ref> At the base of the [[machine]], it usually has two [[Continuous track|tracks]] to move it. Above the tracks is a platform that rotates (180° or 360° degrees). The [[operator]] sits in a cab and controls the excavator. One set of controls moves the machine forward and backward. Another set of controls operates the arm and the tilting bucket. [[hydraulic fluid]], [[hydraulic cylinder]]s and [[hydraulic motor]]s control the machine.<ref>{{cite news|title=Industrial Expe ..Lasso Gives More Power To The Hy-Mac Elbow|url=https://news.google.com/newspapers?nid=2507&dat=19620609&id=QOA9AAAAIBAJ&sjid=QkgMAAAAIBAJ&pg=3615,1603500|access-date=29 December 2013|newspaper=The Glasgow Herald|date=June 9, 1962}}</ref> It is characterized by its four main parts.<ref>{{Cite web|title=Types of Heavy Equipment for Construction|url=https://www.localika.com/2020/10/3-common-types-of-heavy-equipment-for-construction.html|access-date=2020-10-07}}</ref> Bucket - Also called a scoop, this part is used to take out a huge chunk of soil from the ground. It is made of solid steel and has large teeth to make scooping easier. Excavators come in different sizes based on the type of work they do. Some are cable-operated exca