Editing Tractor (section)

=== Engineering ===
[[File:Chelyabinsk tractor factory 1930s.jpg|thumb|A tractor factory in [[Chelyabinsk]] in the [[Soviet Union]] circa 1930]]
[[File:tractor fanguejant.jpg|thumb|[[Ebro trucks|Ebro]] farm tractor with steel wheel extensions.  This arrangement is often used in muddy conditions that are found in paddy farming of rice.]]

The durability and engine power of tractors made them very suitable for engineering tasks. Tractors can be fitted with engineering tools such as [[bulldozer|dozer blade]]s, [[loader (equipment)|bucket]]s, [[hoe (equipment)|hoe]]s, rippers, etc.  The most common attachments for the front of a tractor are dozer blades or buckets. When attached to engineering tools, the tractor is called an [[engineering vehicle]].

A [[bulldozer]] is a [[tractor crawler|track-type tractor]]  with a blade attached in the front and a rope-winch behind. Bulldozers are very powerful tractors and have excellent ground-hold, as their main tasks are to push or drag.

Bulldozers have been further modified over time to evolve into new machines which are capable of working in ways that the original bulldozer can not. One example is that [[Loader (equipment)|loader]] tractors were created by removing the blade and substituting a large volume bucket and hydraulic arms which can raise and lower the bucket, thus making it useful for scooping up earth, rock and similar loose material to load it into trucks.

A front-loader or loader is a tractor with an engineering tool which consists of two hydraulic powered arms on either side of the front engine compartment and a tilting implement. This is usually a wide-open box called a bucket, but other common attachments are a [[pallet fork]] and a bale grappler.

Other modifications to the original bulldozer include making the machine smaller to let it operate in small work areas where movement is limited. Also, tiny wheeled loaders, officially called [[skid-steer loader]]s, but nicknamed "[[Bobcat (equipment)|Bobcat]]" after the original manufacturer, are particularly suited for small excavation projects in confined areas.