UNIT 1:
Classification of Tractors - History of Engines
Tractor engines – Engine operation
Understanding the working principle of a Diesel engine - 4 Stroke compression
Engine operating cycle -Firing order – Firing interval, Combustion chambers, Construction details of engine blocks
Engine operating cycle -Firing order – Firing interval, Combustion chambers, Construction details of engine blocks
Cylinder head, and Crankcase, Features of cylinder, Piston, Connecting rod, and Crankshaft
Hand tools used in garage-fault diagnosis.
UNIT 2:
Gear box- Differential and final drive mechanism, Engine governing
Cooling and lubrication system, Starting and electrical system
Cooling and lubrication system, Starting and electrical system
Cooling and lubrication system, Starting and electrical system
Valve and valve mechanism-Air and fuel supply, Air cleaner- Fuel pump- Exhaust– Silencer
Transmission system-clutches, brakes, power train- transmission, Gears- Types of high and low gears transmission
Gear box- Differential and final drive mechanism, Engine governing
Steering geometry– Steering systems,
Transmission system-clutches, brakes, power train- transmission, Gears- Types of high and low gears transmission
Steering geometry– Steering systems,
Steering geometry– Steering systems,
Transmission system-clutches, brakes, power train- transmission, Gears- Types of high and low gears transmission
Transmission system-clutches, brakes, power train- transmission, Gears- Types of high and low gears transmission
Front axle and wheel alignment Brake– types
UNIT 3:
Hydraulic system -hydraulic couplings, Torque convertors
Tractor steering mechanism-Types- caster camber- king pin inclination, Toe-in and Toe-out- Tractor Hitching.
Tractor PTO, Belt-pulley, properties of Hydraulic fluids
Hydraulic system -hydraulic couplings, Torque convertors
Hydraulic system -hydraulic couplings, Torque convertors
UNIT 4:
Power tiller-Special features
Clutch,Gearbox Steering and brake
Need for testing & Evaluation of farm tractors, Test codes for performance testing of tractors
Cost of operation of tractors, Test codes for performance testing of power tillers, Cost of operation of power tillers
Cost of operation of tractors, Test codes for performance testing of power tillers, Cost of operation of power tillers
UNIT 5:
Ergonomic aspects of tractors
Ergonomic aspects of power tillers
Substitution of fossil fuels with Biofuels to protect the environment from GHG pollution
Study of Tyres, Rims and Balancing methods of a tractor
