Tractors

Nowadays tractors are widely used in agriculture and industry. In different branches of industry tractors are used as road transport tractors hauling heavy loads. Tractors may be agricultural, special and road transport tractors.

Road transport tractors are equipped with a load carrying platform. Special tractors are usually equipped with auxiliary devices. Tractors may belong either to wheeled-type tractors or to track-laying type tractors.

The construction of a tractor includes the following main units:

1. Power unit which includes the engine with all auxiliary devices – a radiator, a fan, a starter device, a fuel tank, a pump, etc.

2. Transmission which consists of a clutch, a speed control unit, universal joints, gearing mechanisms, shafts, steering mechanisms, a final drive, axles.

3. Driver which includes driving, supporting and controlling mechanisms.

4. A steering unit.

5. The tractor frame.

6. Working and auxiliary equipment.

A cable tractor is widely used in clearing the site. It is a machine used for pulling cables which either can be an electrical cable or wire ropes.

Source: http://www.heavyequipment.com/heavy-equipment/road-highways