Explain how to maintain equipments, state and explain types of maintenance, explain importance of maintenance. Students explain how an equipment can be maintained. Equipment soft-ware.
Explanation of chassis,
Types of motor vehicle chassis.
Teacher introduces students to vehicle layout, explain types of chassis.
Students identify the vehicle layout.
Sketch of chassis layout, lesson plan, posters, charts, types of chassis layout models.
Principle components of motor vehicle; identification of engine, transmission system, chassis members, breaking system, suspension system as are mounted on the chassis, diagrammatical illustrations.
Teacher lists the main components, such as engine, gearbox, clutch, chassis rear axle, wad wheels and vehicle body.
Students inspect types of vehicle chassis and various components stated, identify the various components.
Various components of chassis layout.
Functions of each principal components and uses.
Teacher explains the functions and uses of the chassis components. Students participate in the discussion and explain the importance of various components.
Chassis assembly with various components, charts showing the assently.
Types of engine design
Teacher explains the types of engine design, e.g single cylinder, multi cylinder, unline and V-engine designs.
Identification of main components of engine
Teacher lists main components of engine, lists parts of engine, shows and explain sketches of engine, showing details, and explains the importance of various components. Students visit a workshop to observe the various components of engines.
Complete engine chart and posters.
AUTO MECHANIC WORK
SS 1 SECOND TERM
TYPES OF ENGINE
Line diagrams of multi cylinder engines and explanation.
Teacher draws and explain line diagram of multi-cylinder engine. Students participate in the discussion.
Resources; Engine block of a multi-cylinder engine.
Charts and posters.
TYPES OF ENGINE
Types of cylinder liners e.g dry and wet.
Constructional details of cylinder liners.
Teacher illustrates and explains types of cylinder liners.
Differentiate between types of liners and state the advantages and disadvantages. Students identify different cylinder liners, and explain their differences.
Transmission system layout (the engine, clutch, gearbox, universal joint, propeller shaft, rear axle and half shafts.
Teacher sketch and display the layout of transmission system, explain the components of transmission system.
Students identify and examine transmission layout, mention the components in sequential order.
Resources; Charts, transmission models, posters, live vehicle.
Types of drive (front engine front wheel drive, rear engine rear wheel drive.)
Teacher explains types of engine and driving arrangements. Students observe different types of driving arrangements, identify the various types of vehicle and their driving arrangement. Resources; Posters, charts, live vehicles.
Types of suspension system with their functions e.g laminated spring, coil, spring and fusion bar.
Teacher explain and illustrate the types of suspension system (laminated spring, coil spring, fusion bar, etc). list functions of suspension system.
Students observe and identify types of suspension system. Lists functions of suspension systems.
Resources; Suspension system components, charts, posters.
Teacher explain the functions of steering, illustrate the components of steering. Students observe the components of steering system.
Resources; Steering system components, posters, charts.
Types of steering boxes with their functions e.g raw and pinon cam and worm redrculating balls etc.
Differentiate between types of steering boxes. Students identify types of steering boxes.
Resources; Steering boxes, charts, posters.
ENGINE LUBRICATING AND COOLING SYSTEM
Friction, merits and demerits of friction.
Purpose of lubricating system e.g of passages, pump, filters etc.
Teacher explain friction with merits and demerits, explain reasons for lubricating system, demonstrate existence and uses of lubrication, show students types of lubricants, and areas of application. Students rub palms and explain why they become warm. Rub two surfaces on each other with oil and without oil, and note the differences.
ENGINE LUBRICATION AND COOLING SYSTEM
functions of cooling system
Teacher defines cooling system, and emphasize the need for cooling system. Students notice the effect of lack of water in running an engine.
Resources; Posters, charts.
Types of cooling system,
Components of cooling system e.g radiator, water pump, hoses, cooling fan with passages.
Teacher lists and explain types of cooling system, demonstrate the cyculation of water in cooling system and state the role of the role of the system components. students mention in sequence, the function of the components of cooling system. Resources; Line vehicle, cooling system components, charts, posters.
AUTO MECHANIC WORK
SS 1 THIRD TERM
Basic concept of friction as applied to braking system
Teacher explains the importance of brakes and braking system in a motor vehicle. Students say what brake does with a moving vehicle.
Resources; Live vehicle, brake components.
Functions of braking system.
Drum brakes and disc brakes.
Teacher state the functions of braking system, list and explain types of brake i.e drum and disc. Students identify disc and drum brake, say where in a motor vehicle each type is mostly found.
Resources; Live vehicle, disc and drum.
Types and principle of operation of mechanical and hydraulic brake systems.
The teacher, with the aid of sketches, explains mechanically and hydraulically operated brakes. Students identify and distinguish mechanical and hydraulic brakes.
BRAKING SYSTEM Components of types of braking system e.g master cylinder, wheel cylinder, pipe lines, calipers, disc, shoes, pedal, linkages, actuating rods etc.
Teacher list and explain the hydraulic brake system, components and the mechanical braking components. Students differentiate components of hydraulic brake system, and mechanical brake system.
Resources; Live vehicle, components of bolt system of brakes, charts and posters.
Advantages and disadvantages of mechanical and hydraulic brake systems.
Teacher list and explain the advantages and disadvantages of the two types of brake systems. Students white brake has more advantages, and efficient operation.
Resources; Lesson plan, chart.
FUEL AND COMBUSTION
General layout of working principle of fuel system.
Teacher list and explain types of fuel e.g petrol, diesel, paraffin, etc.
Students examine the layout of the fuel system.
Resources; Fuel pump, fuel hose, fuel filter- live vehicle.
FUEL AND COMBUSTION
Components and part of fuel system and illustration e.g. fuel pump, carburetor, float, float chamber etc
Teacher illustrates the components and part of fuel system using sketches.
Students visit workshop to see a live vehicle and model fuel system layout.
Resources; Workshop, fuel system layout, live vehicle.
Functions of manifold, types of manifold e.g. inlet and exhaust manifold.
Teacher state and explain function of manifold- demonstrate how to remove and replace manifold. Students identify inlet and exhaust manifold, and say what each do.
Resources; Manifolds, charts, posters, live vehicle.
Teacher explains the function of RIM, illustrate types of RIM, remove and replace RIMS. Students identify types and sizes of RIMS, observe the dismantling and coupling of RIM. Resources; Alloy RIMS, press steel RIMS, chart and posters, RIM removing tools.
Function of tyres, sizes of tyres e.g. tyre designation.
The teacher states the functions of tyres, list and explain types of tyre- tube and tubeless.
Students distinguish tube from tubeless tyre.
Resources; Tubeless tyre, tube tyre, lesson plan.
Advantages and disadvantages of tube and tubeless tyres.
Teacher list and explain the advantages and disadvantages of tube and tubeless tyres.
Students identify the tyres, based of most efficient type.