AI3401 Tractors and Engine Systems Syllabus:

AI3401 Tractors and Engine Systems Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

 To introduce the students to the different systems and working principles of tractor, power tiller, makes of tractors and power tillers.

UNIT I TRACTORS

Classification of tractors – Tractor engines – construction of engine blocks, cylinder head and crankcase – features of cylinder, piston, connecting rod and crankshaft – firing order combustion chambers.

UNIT II ENGINE SYSTEMS

Valves-inlet and outlet valves – valve timing diagram. Air cleaner- exhaust – silencer. Cooling systems – lubricating systems – fuel system – governor- electrical system.

UNIT III TRANSMISSION SYSTEMS

Transmission – clutch – gear box – sliding mesh – constant mesh – synchro mesh. Differential, final drive and wheels. Steering geometry – steering systems – front axle and wheel alignment. Brake – types – system.

UNIT IV HYDRAULIC SYSTEMS

Hydraulic system – working principles, three point linkage – draft control – weight transfer, theory of traction – tractive efficiency – tractor chassis mechanics – stability – longitudinal and lateral.
Controls – visibility – operators seat.

UNIT V POWER TILLER, BULLDOZER AND TRACTOR TESTING

Power tiller – special features – clutch – gear box – steering and brake. Makes of tractors, power tillers and bulldozers. Bulldozer- salient features – turning mechanism, track mechanism, components – operations performed by bulldozers. Types of tests- test procedure – need for testing & evaluation of farm tractor -Test code for performance testing of tractors and power tillers.

TOTAL: 45 PERIODS
TEXT BOOKS:

1. Jain, S.C. and C.R. Rai. Farm tractor maintenance and repair. Standard publishers and distributors, New Delhi, 1999.

REFERENCES:

1. Barger, E.L., J.B. Liljedahl and E.C. McKibben, Tractors and their Power Units. Wiley Eastern Pvt. Ltd., New Delhi, 1997.
2. Domkundwar A.V. A course in internal combustion engines. Dhanpat Rai & Co. (P) Ltd., Educational and Technical Publishers, Delhi,1999.
3. Black, P.O. Diesel engine manual. Taraporevala Sons& Co., Mumbai, 1996.
4. Grouse, W.H. and Anglin, D.L. Automative mechanics. Macmillan McGraw- Hill, Singapore, Indian Standard Codes for Agricultural Implements Published by ISI, New Delhi, 1993.
5. Jagadeeshwar Sahay, Elements of Agricultural Engineering, Standard Publishers Co., New Delhi, 2010.

COURSE OUTCOMES:

On completion of the course, the student is expected to
CO1 Get an idea on various machinery available for farm mechanization
CO2 Calculate the valve timing of an IC engine and represent by a drawing
CO3 Gain knowledge on the transmission system of a tractor
CO4 Understand the hydraulic system in a tractor and estimate the traction.
CO5 Gain knowledge on power tillers, bulldozers and different tractor testing procedures.