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.
Functions of RIMS
Types of RIMS
Sizes of RIMS
Removing and fixing of RIMS, tools used.
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.