Equipment Specs

Crab Steering

From RitchieWiki

Mechanical Features and Designs

Crab steering is a feature of 4x4x4 wheel drive vehicles. It was created to allow construction equipment such as backhoes easy movement throughout construction sites. With crab steering, the front and rear wheels of the machine are able to move in opposite directions. It can turn the wheels in the same direction, enabling the machine to move sideways, a feature suited for tight corners and buildings with limited space. It also reduces the amount of time spent aligning the vehicle in the correct position, ensuring the machine does not have to endure constant backing up.[1]

Crab steering developed in the 1990s along with four-wheel drive vehicles. Operated by electronics, it is a mode of steering that can be maneuvered at the choice of the operator. There is some debate about who developed crab steering. English-based company, Frazier, introduced electronic crab steering in the early 1990s, and manufacturers such as JCB also utilized this type of steering when it launched the backhoe loader in 1991.[2]

Other features of 4x4x4 wheel drive include 2x4 and 4x4 wheel steering, which developed in the 1980s and continues to be utilized today.

[edit] References

  1. Crab Steering. TPub. 2008-09-29.
  2. Fourwhee. Frazier. 2008-09-29.