A backhoe is a type of excavating or earthmoving equipment that is also known as rear actor, extractor or back actor. It has a bucket-shaped scooping tool attached at the end of consisting of a digging bucket on the end of an artificial arm. They are mostly used in constructing roads or large buildings. This system is attached to a vehicle which enables the machinery to shift from place to place as required. It almost mimics the human hand by digging, lifting and dumping material. A backhoe consists of three parts that could be considered to be similar to a human arm: 1. The Boom. It is attached to the tractor and is like the upper arm. 2. The Stick. On one end it is attached to the vehicle and is like the forearm 3. The Bucket. The other end of the stick is attached to a hand shaped bucket. There is also another attachment to the tractor that is called the loader. The backhoe does the digging, lifting and dumping work and the loader shifts the dug material to a different place. So basically, the backhoe gets to things underground and the loader moves things around above groud. The tractor helps in shifting the entire system as required. This forms the whole earthmoving equipment used for construction jobs. The driver of the vehicle is actually the operator and has three responsibilities to move the vehicle, to make the backhoe work and the loader to shift the material. There is a control panel on the dashboard of the tractor with the help of which he is able to operate all the three things. The operator has to be smart enough to control the backhoe and tractor movements. The loader does not require much application. As the operator parks the tractor at the required place two leg-like support comes out and gets fixed at the sides of the tractor for extra strength and stabilizing. Now the system is ready to work. The operator chooses buttons on the dashboard to use the arm to pull out to the required point of digging. Then the operator uses another lever attached to the hand-like bucket to touch the earth from where the material is to be lifted. There is again another lever which is for the digging action. This lever will force the bucket to dig into the earth. This will fill the bucket with the material. The material is then lifted with the same levers to a dumping truck or is dumped somewhere nearby. There are a number of manufacturers of backhoes. The major players in backhoe manufacturing are JCB, John Deere, Case, KPX, Massey Ferguson, Caterpillars, etc. Like the skid-steer loaders, compact wheel loaders and trenchers, there is also a type of backhoe called the compact backhoes. Such backhoes use light attachments and are efficient in digging and faster loading. They can dig 6-8 feet depths easily and weigh lesser than 5000 pounds. These backhoes are very user-friendly requiring minimal time to be detached from the tractor. Apart from being versatile, a compact backhoe is also a heavy-duty earth-moving machine. And even though a compact backhoe may be small in size, it can be used in very challenging applications. Copyright (c) 2006
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