1. Student must get conversant will all types of repair, maintenance and overhauling of two/three wheeler vehicles.
2. Student should be able to handle basic engineering equipments and measuring instruments.
General precautions to be observed in workshop or garage.
2. TOOLS AND EQUIPMENTS
General tools, equipments and measuring instruments used in repairs of two-three wheeler vehicles.
i) Types of Heat engines, Technical terms used for engine and C. I. Engine.
ii) Construction and working of two stroke cycle engine.
iii) Construction and working of four stroke cycle engine. Engine Parts : Cylinder block, Cylinder Head, Piston, Connecting rod, Crank Shaft, Crank Case, Valves, Cam Shaft, Valve Timing Diagram, Oil Chamber etc.
4. DIFFERENT TYPES OF SYSTEM IN ENGINES
i) Fuel Systems : Types of fuel feed systems carburetor types and working, circuits of carburetor, faults and remedies.
ii) Cooling System : Types of cooling system, air cooled maintenance and repairs of cooling system.
iii) Lubrication System : Advantages of Lubrication, types of lubrication and working of petroit Lubrication
( Vaporized lubrication ) and pressure feed lubrication.
iv) Ignition System : Types of ignition system, magneto ignition and coil ignition, parts of ignition system i.e. C.B.
points, ignition coil, spark plugs etc.
v) Intake and Exhaust system : Air cleaner, types of silencer mufflers.
5. TRANSMISSION SYSTEM
i) Clutch :Function, types of clutch, multiplate wet clutch, operating mechanism.
ii) Gear Box :Function, Types of gear box, operating mechanism power transmission method, driving chains, adjustments.
iii) Final Drive.
6. SUSPENSION AND STEERING SYSTEM
i) Function, suspension used for two-three wheeler, parts of suspension systems.
ii) Types of steering, handle and its fitting adjustments, hubs, bearing adjustments, lubrication, disc wheels, tyre, tube etc.
Types of brakes system, Hydraulic brakes and mechanical brakes, Internal expanding and external contracting brakes, parts of brakes, faults, and maintenance.
8. ELECTRICAL SYSTEM OF TWO-THREE WHEELER
Head light, Tail lights, Horn, Kick mechanism, self starter mechanism gauges of panel board etc.
9. SERVICING AND MAINTENANCE
Cleaning and greasing method, shop layout and conditions regarding illumination ventilation cleanliness, Maintenance schemes of two/three wheelers.
SCHEME OF EXAMINATION
Theory on paper 3 Hours 100 Marks
Practical 2 Hours 75 Marks
Journal work 15 Marks
Oral 10 Marks
Total 200 Marks
Minimum marks for passing 35% Theory & 40% Practical