thomas. Excavator. May 23rd , 2018.
The two main sections of an excavator are the undercarriage and the house. The undercarriage includes the blade (if fitted) tracks track frame and final drives which have a hydraulic motor and gearing providing the drive to the individual tracks and the house includes the operator cab counterweight engine fuel and hydraulic oil tanks. The house attaches to the undercarriage by way of a center pin. High pressure oil is supplied to the tracks hydraulic motors through a hydraulic swivel at the axis of the pin allowing the machine to slew 360° unhindered.
Bobcat Company is an American-based manufacturer of farm and construction equipment part of Doosan Group of South Korea. Its American headquarters is in West Fargo North Dakota USA formerly in Gwinner North Dakota. Its European headquarters moved in 2017 from Waterloo Belgium to Dobris (near Prague) in Czech Republic where Bobcat operates one of its European manufacturing plants. It was a subsidiary of the Ingersoll Rand Company from 1995 until July 2007 when it was sold for US$4.9 billion to Doosan Infracore.1 The company sells skid steer loaders compact excavators compact utility vehicles compact tractors and other small hydraulic equipment under the Bobcat brand name. It is one of the few major manufacturing companies operating in North Dakota.
There are two main types of "Control" configuration generally use in excavators to control the boom and bucket both of which spread the four main digging controls between two x-y joysticks. This allows a skilled operator to control all four functions simultaneously. The most popular configuration in the US is the SAE controls configuration while in other parts of the world the ISO control configuration is more common. Some manufacturers such as Takeuchi have switches that allow the operator to select which control configuration to use.
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