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TRACTORS- TYPES AND UTILITIES PDF LEC- 4th

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TRACTORS- TYPES AND UTILITIES

wheel tractors

TRACTOR DEVELOPMENT

CLASSIFICATION OF TRACTORS

Wheel tractor

Crawler tractor

Power tiller

Classification of wheel tractors

a) General purpose tractor

b) Row crop tractors

c) Special purpose tractor

SELECTION OF TRACTOR

WHEEL TRACTOR Components

  1. I.C engine

  2. Clutch

Necessity of clutch in a tractor

  1. power transmission system of a tractor

Functions of power transmission system

  1. Transmission gears

  2. Differential unit

Differential Lock

  1. Final drive

  2. Steering mechanism

  3. Hydraulic control system

Basic components of hydraulic system

  1. Brakes

  2. Power take off

  3. Belt pulley

  4. Control board or dash board

IMPORTANT TERMS CONNECTED WITH TRACTORS

CRAWLER TRACTOR

POWER TILLER

Components of power tiller

Operation of a power tiller ( power transmission in a power tiller)

Tractor is a self propelled power unit having wheels or tracks for operating
agricultural implements and machines including trailers. Tractor engine is used as a
prime mover for active tools and stationary farm machinery through power-take off (pto)
or belt pulley.

TRACTOR DEVELOPMENT
The present tractor is the result of gradual development of machine in different
stages. History of tractor development is given below.
1890- The word tractor appeared first on record in a patent issued on a tractor or traction
engine invented by George H. Harris of Chicago
1906- Successful gasoline tractor was introduced by Charles w. Hart and Charles H.
Parr of Charles City, Iowa
1908- First Winnipeg tractor trails were held
1911- First tractor demonstration was held at Omaha ( Nebraska)
1915-1919- Power take off was introduced
1920-1924- All purpose was developed
1936- 1937 – Diesel engine was used in tractor and pneumatic tires were introduced
1950-1960- Manufacturing of diesel tractors on extensive basis throughout the world
was taken up
1960-1961 – Tractor manufacturing was started in India by first manufacturer M/s Eicher
Good Earth
1962-1970 – Manufacturers like Tractor and Farm Equipment , Madras , Hindustan
tractors at Baroda, Escorts Tractors at Faridabad and International Harvester in Bombay
started work during this period

FARM POWER IN INDIA PDF Lec 4th

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