Excavator controls

Excavator controls specifies ways of how a human operator controls the digging components (i.e. swing, boom, stick, bucket) of a piece of heavy machinery, such as a backhoe or an excavator.

ISO controlsEdit

 
ISO excavator controls illustration, color of the control matches the moving part. Additionally there is a switch on the right hand joystick to operate attached tools.

The most commonly used control pattern throughout the world is the ISO controls. In the ISO control pattern, the left hand joystick controls Swing (left & right) and the Stick Boom (away & close), and the right hand joystick controls the Main Boom (up & down) and Bucket motions (close & dump). Relevant standards ISO 10968 and SAE J1177.

  • Left hand left = Swing left.
  • Left hand right = Swing right.
  • Left hand forward = Stick Boom (Dipper) away.
  • Left hand back = Stick Boom (Dipper) close.
  • Right hand left = Bucket curl in (closed)
  • Right hand right = Bucket curl out (dump)
  • Right hand forward = Main Boom down.
  • Right hand back = Main Boom up.

SAE controlsEdit

Beside ISO, the SAE controls is one most common control patterns in the United States. It differs from the ISO control pattern only in that SAE controls exchange the hands that control the boom and the stick. The relevant SAE standard is J1814.

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.
  • Left hand forward = Main Boom down.
  • Left hand back = Main Boom up.
  • Right hand left = Bucket curl in (closed)
  • Right hand right = Bucket curl out (dump)
  • Right hand forward = Stick Boom (Dipper) away.
  • Right hand back = Stick Boom (Dipper) close.

In most countries, excavators usually comes with that kind of settings (SAE) from many manufacturers (Komatsu, Caterpillar, Kobelco, Hyundai, Doosan, Hitachi, Link Belt, Kubota). Some excavators have the possibility with the easy motion of a single switch, to change the operating mode from SAE to ISO and finally from ISO to SAE (Kubota, Wacker Neuson [1]).

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