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  2. Excavator controls - Wikipedia

    en.wikipedia.org/wiki/Excavator_controls

    This control pattern is standardized in J1814 [dubious – discuss]. In the SAE control pattern, the left hand joystick controls Swing (left & right) and the Main Boom (up &down), and the right hand joystick controls the Stick Boom(away & close) and Bucket motions (close & dump). Left hand left = Swing left. Left hand right = Swing right.

  3. Choke valve - Wikipedia

    en.wikipedia.org/wiki/Choke_valve

    Most choke valves in engines are butterfly valves mounted upstream of the carburetor jet to produce a higher partial vacuum, which increases the fuel draw. [ 1 ] In heavy industrial or fluid engineering contexts, including oil and gas production, a choke valve or choke is a particular design of valve with a solid cylinder placed inside another ...

  4. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Gate valve, mainly for on–off control, with low pressure drop; Globe valve, good for regulating flow. Uses a cylinder movement over a seat; Knife valve, similar to a gate valve, but usually more compact. Often used for slurries or powders on–off control; Needle valve for accurate flow control; Pinch valve, for slurry flow regulation and ...

  5. Flow control valve - Wikipedia

    en.wikipedia.org/wiki/Flow_control_valve

    The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]

  6. Auxiliary hydraulic system - Wikipedia

    en.wikipedia.org/wiki/Auxiliary_hydraulic_system

    Depending upon the vehicle, whether an excavator, a back-hoe or a front-end-loader, the auxiliary hydraulic system may vary. Vehicle interface fittings, length from pump to attachment and vehicle control systems require various configurations of an auxiliary hydraulic system.

  7. Crawler excavator - Wikipedia

    en.wikipedia.org/wiki/Crawler_excavator

    John Deere 135P excavator with rubber tracked treads. A crawler excavator, also known as a track-type excavator or tracked excavator, is a type of heavy construction equipment primarily used for excavation and earthmoving tasks. It is characterized by its tracked undercarriage, which provides superior mobility and traction compared to wheeled ...

  8. Breaker (hydraulic) - Wikipedia

    en.wikipedia.org/wiki/Breaker_(hydraulic)

    It is powered by an auxiliary hydraulic system from the excavator, which is fitted with a foot-operated valve for this purpose. ... 55.0: 88000 - 121000: 175 / 6.88 ...

  9. Isolation valve - Wikipedia

    en.wikipedia.org/wiki/Isolation_valve

    An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [2]

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