Mechanical Technology Department Heavy Equipment pot

4 Analyze drawing and write technical The trainees should be able to: 1 Identify different types of drawing tools used in engineering drawing.. The trainees are also introduced in this c

Mechanical Technology Department

Heavy Equipment

Department Mechanical Technology Major Heavy Equipment Program Description:

This program has been designed to meet the training needs of the local labor market by taking into considerations the National Occupational Skill Standards (NOSS) for heavy equipment

"technician" Trade The training in this program includes general skills in English Language, Mathematics, Physics, as well as Human Communication Skills Also, the program includes training on basic skills related to heavy equipment systems and components and their operation, and the fundamentals of heavy equipment electrical and electronic systems that would help the trainee in his career In addition, the program provides specialized skills in the field of heavy equipment mechanics related to maintenance and repair techniques of heavy equipment mechanical components and systems after performing set of technical tests on the heavy equipment The training on how to set diagnostic strategies for the mechanical faults in heavy equipment would also be given

In Technical Colleges, training on “heavy equipment Technology” is performed through (1742) contact hours, in addition to (420) hours of cooperative-training in the labor market through cooperation between the colleges and industrial establishments, governmental and private sectors (like heavy equipment dealers) that work fully or partially in heavy equipment sector

The graduate of this program is awarded an associate degree certificate, and expected to work

as a technician in civil and military establishments linked to heavy equipment

General Objective:

This program aims at providing the trainee with hands on skills, experience and necessary

information required to exercise work as a technician in the field of heavy equipment

Detailed Objectives:

By the end of this program the trainee will be able to efficiently perform the following:

1) Follow up safety procedures and instructions on heavy equipment workshops before

commencement of any job

2) Recognize basic heavy equipment systems and components, functions and methods of

operation

3) Use different specialized tools in heavy equipment field to perform necessary tests on

heavy equipment systems and components

4) Use maintenance and service manuals of different heavy equipment models and deal with heavy equipment spare parts

5) Execute maintenance and repair operations on heavy equipment systems and components with related skills of assembly and disassembly

6) Set up diagnostic strategies for the mechanical faults in heavy equipment systems and

components

7) Recognize technical terms in the field of heavy equipment mechanics

8) Deal with new emerging technologies in different heavy equipment systems

Heavy Equipment Section Study Plan Distributed over all Trimesters

6

Pneumatic Systems

HEQ 163

No of Units No

Code

requisite

Department Mechanical Technology Major Engines and Vehicles

Course description:

This course includes training in the basics of

engineering drawing, the method of using

drawing tools, orthographic projection,

conversions, symbols, sections and hatching

The course highlights methods of representing

details of mechanical parts through

engineering drawing by orthographic

projection and sections Identification of

drawing symbols and terms are also included

-General course objectives:

The course aims at providing the trainees with the ability to use engineering drawing to read

drawings and understand symbols, it also prepare the trainees to correctly employ the basics and symbols of engineering drawing in representing details of mechanical parts

Specifications

Related Tasks

First: Procedural Objectives:

The trainees should be able to:

1) Explain the meaning of different lines

used in engineering drawing

- Explanation of the meaning of different lines used in

engineering drawing

2) Identify different symbols used to transfer

information

- Identification of different symbols used to transfer information

3) Read and understand engineering

drawing and printed sheets

- Read engineering drawing and printed sheets

B6, E1, E8, E10, E11, E12, G13, H1, H2, I1, I14, I17, K7, K10

4) Analyze drawing and write technical

The trainees should be able to:

1) Identify different types of drawing tools

used in engineering drawing

- Identification of the types of drawing tools used in

engineering drawing

2) Read some visual means and 3D

AutoCAD computer drawings

- Ability to differentiate between the types of projections in engineering drawing

3) Identify some sections of automotive

parts

- Comparison of authentic sectioned parts of automotive components with their

technical drawings

B6, E1, E8, E10, E11, E12, G13, H1, H2, I1, I14, I17, K7, K10

Safety Requirements:

Compliance with safety instructions found in the engineering drawing hall

Subjects (Theoretical and Practical)

bearings

- Check universal joints

E1, E8, E10, E11, E12, H2

clutch

Detailed Practical Course

8

Principles of engineering drawing:

- Engineering drawing as a language for technicians

- Tools and equipment used

- Orthographic projection of points, lines and areas

- Orthographic projection of the first angle

- Reference and dimension lines

- Arrow line drawing

- Methods of writing dimensions

- Writing dimensions on circles (diameters and radii)

- Applications

Direct observation (practical performance)Oral questionsWritten questions

Detailed Practical Course

12

Isometric drawing:

- Methods of isometric representation

- Representation of circling surfaces and holes

- Applications

12

Sections and sectioned shapes:

- The need for sections

- Section levels

- Full section and half section

- Broken out, revolved, removed, and partial section

Course Description:

In this course the trainees are introduced to the

fundamentals of preparatory workshops and

engineering measuring, as well as the fundamentals of

safety procedures The trainees are also introduced in

this course to the tools and equipment used in the

workshop, heavy equipment parts which include; the

engine, power train systems, under carriage, driving

shafts, differential, suspension and steering, different

brake systems and their types and parts

General Goal:

This course aims to introduce the trainees to the fundamentals of preparatory workshops and engineering measuring, as well as the fundamentals of safety procedures The trainees are also introduced in this course to the tools and equipment used in the workshop and all heavy equipment parts

Behavioral Objectives:

The trainees should be able to:

 Understand the fundamentals of preparatory workshops and engineering measuring

 Be familiar with the basic safety procedures

 Identify the tools and equipment used in the workshop

 Be familiar with heavy equipment parts which include different power train systems, suspension and steering, different Brake systems and their types and parts

Topics

 The fundamentals of preparatory workshops and engineering measurement

 Safety procedures

 Tools and equipment used in the workshop

 Heavy equipment parts which include; different power train systems, suspension and steering systems, different brake systems and their types and parts

Detailed Curriculum (Practice)

Behavioral Objectives Contents

Hrs

The trainees should be able to:

 apply safety rules

 carry out measuring methods

 carry out manual cutting methods using different tools

Basic skills which include:

Machine and tool operation

basics; which include:

 types of tools and equipment

 operating equipment

4

Detailed Curriculum (Practice)

Behavioral Objectives Contents

Hrs

knowledge of workshop industrial safety procedures;

 methods for storing flammable materials

 methods of arranging equipment for

emergencies

4

knowledge of correctly using tools, machines and

equipment in the workshop

 knowing how to protect oneself from injuries when using workshop tools, machines and equipment

 protecting tools, machines and equipment from any harm

Tools, machines and equipment

used in the workshop

 all types of filing tools with different

smoothing levels

 all forging tools in all shapes and sizes

 wrenches and pullers in all shapes and

sizes

 heavy machinery (turning machines for

valves, discs, drums … etc)



4

The trainees should be able to:

 Understand basic information to do with heavy vehicles

 Compare between wheeled and crawler equipments

Heavy equipment types

Detailed Curriculum (Practice)

Behavioral Objectives Contents

The engine, its components and

parts; which include:

 axels and rods

Power train parts, their types

and components; which include:

 friction clutch and its different types

 hydraulic coupling

 torque converter

 automatic gear boxes

 different types of propeller shafts,

connections and bearings

 back axel unit, its components and

 springs, shock absorbers …etc

 control arms, rods, dust boots, ball bearing , etc

 wheel alignment angles , their types

Steering and suspension, their

types and components; which

include:

 springs, shock absorbers …etc

 control arms, rods, dust boots, ball

bearings, etc

 wheel alignment angles, their types and

2

Detailed Curriculum (Practice)

Behavioral Objectives Contents

Hrs

Identify the brakes, their types and components; which include:

 hydraulic brakes (drum and disc brakes)

 air brakes (air reservoir, valves, etc)

 booster, levers, linkages, parking brakes and engine brakes

Brakes, their types and

components; which include:

 hydraulic brakes (drum and disc brakes)

 air brakes (air reservoir, valves, etc)

 booster, levers, linkages, parking brakes

and engine brakes

Track heavy equipment:

Wheeled heavy equipment:

 Single wheels

 Tandem wheels

4

Department Mechanical Technology Major Heavy Equipment

161 HEQ

 

Course description:

Vocational Safety at Heavy-Duty Workshops

is an important part of the workplace that

trainees should be familiar with This course

covers how to wear work clothes, safety gear,

choosing and preparing the appropriate

workplace, methods of using tools and

equipment and their safety, methods of using

lifts The workshop safety section covers the

proper methods for getting rid of exhaust

gases, proper storing of flammable materials

and using fire extinguishers

-General course objectives:

The course aims to introduce the trainees to Vocational Safety at Heavy-Duty Workshop which is

an important part of any workplace The trainees learn to wear work clothes, safety gear, choosing the proper location for working and preparing it for that, methods of using tools, equipment, their safety, and methods of using lifts The trainees also learn workshop safety procedures, and proper storing of flammable materials and using fire extinguishers

Skill Objectives:

The trainees should be able to:

 Know which work clothes and safety gear are most suitable

 Know how to choose a suitable location for working and how to prepare it for that

 Know how to correctly use tools and operate equipment and their safety, and methods of using lifts

 Follow safety procedures inside the workshop (properly get rid of exhaust gases)

 Properly store flammable materials and use fire extinguishers

Subjects (theoretical and practical):

 Method of wearing work clothes and safety gear

 Method of choosing a suitable location for working and preparing it for that

 Method of using and operating tools, equipment and their safety, and methods of using lifts

 Following safety procedures in the workshop (properly get rid of exhaust gases)

 Method of storing flammable materials and using fire extinguishers

Detailed Practical Course

tasks

4

1 – Clothes:

- wearing work clothes

- ensure that the clothes are free of any metal parts

- wear safety goggles

- wear gloves

The trainees should be able to:

- Choose the correct work clothes and safety gear for safety, as well as the safety

of the car and for the general appearance of the mechanic

- ensure that the floor is free

of any liquids spills

- ensure the presence of safety equipment

- Prepare a suitable place for working on the car

- Ensure that the floor is free

of any liquid spills

- Ensure the presence of safety equipment

- Taking care of the tools

- Ensuring the safety of the vehicle

- Use tools properly to avoid injuries, safe usage and storage of tools

A3

4

4 – Equipment:

- Proper usage of equipment

- Using the right device

- Taking care of the equipment

- Use equipment properly to avoid injuries, safe usage and storage of equipment

A4

- Use exhaust gas suction hoses

- Use exhaust gas suction hoses with special equipment

to prevent air pollution inside the workshop

A6

2

7 – Flammable materials:

- Store flammable materials in

their designated places

- Take caution when carrying

flammable materials

- Ventilation of their storing

area

- Locking the place

- Store flammable materials in their designated places for the safety of the workshop, the car, and the worker and for general safety

A7

2

8 – Fire extinguishers:

- Learn how to use fire

extinguishers and their types

- Know the location of the fire

to protect the car body and the workshop facilities

A9

Course Description:

This course includes the study of Pascal's law,

Bernoulli principle, force and pressure transmission in

hydraulic systems and determining the type of flow

with solving some exercises Also, the course includes

the principle properties of compressed air, dealing

with the unit used, as well as an introduction to the

special devices that convert energy and the devices

used in energy control

General Goal:

The general goal is the study of physical properties of pneumatic and hydraulic systems, and to study the basic laws of hydraulic systems

Behavioral Objectives:

The trainees should be able to:

 Understand the physical properties of hydraulic systems and basic laws of hydrostatics and hydrodynamics

 Understand the properties of the hydraulic oils and determine their specifications

 Performing the calculation of the pressure loss in the pipes

 Be familiar the theory of operation and the structure and know the symbols of pumps, cylinders, hydraulic motors and the directional control valves and the control valves of pressure and flow rate

 Understand the basic properties of compressed air as medium used in energy transmission for the purposes of control, and the other necessary specific properties of compressed air

 Understand the principles that should be awarded in preparing compressed air, the devices that are used in pneumatic energy conversion, and also the control devices used in pneumatic energy

Theoretical and Practical Topics:-

 Definitions: hydraulics – hydrostatics – hydrodynamics

 Hydrostatics

 Pressure – force transmission in hydraulic systems – Pascal's law

 Fluid flow kinematics

 Flow types – continuity equation – Bernoulli equation

 Pressure drop

 Oils properties and types

 Viscosity - properties – classifications – testing

 Symbols of hydraulic components

 Energy conversion devices (pumps – hydraulic drive station)

 Cylinders – and hydraulic motors

 The physical properties of compressed air

 The method of preparing compressed air

 Symbols of hydraulic and pneumatic components

Detailed Curriculum (Theory)

Related Tasks Behavioral Objectives

Contents Hrs

B13 B14 The trainees should be able to:

 Be familiar with fluid mechanics- fluid statics (hydrostatics)- fluid dynamics (hydrodynamics)

 Illustrate the definition of the hydraulics and hydraulic systems, and also the fields of usage for hydraulic systems

 Identify the physical quantities and special units in hydraulics

 Be familiar with the states of matter (solid-liquid-gas) – specific gravity – density and its relationship to temperature –specific weight – specific volume – compressible and incompressible fluids – ideal fluid- viscosity – viscosity coefficient – absolute viscosity and kinematic viscosity and their units)

B4 B9 H3 H4

The trainees should be able to:

 Define pressure – absolute pressure – gauge pressure – atmospheric pressure – the international and practical units

of pressure

 Express the pressure resulting from external forces (Pascal's law)

 Understand how the pressure can

be increased in hydraulic systems

 Describe the forces of transmission in hydraulic system- hydraulic pistons – pressure converter

 Express pressure in terms of the fluid height

 Solve problems to do with:

pressure calculations and force, and pressure transmissions in hydraulic systems

B2 B3 B5 C7

The trainees should be able to:

 Describe the types of flow:

laminar and turbulent, and know the factors affecting the flow type – calculation of Reynolds number

in circular pipes – solving exercises to determine the type of flow – continuity equation and

solving its application problems

 Understand the kinetic energy to the flowing fluid and how to calculate it – calculation of

potential and pressure energy

 Deduce the energy equation for steady incompressible fluid flow (Bernoulli principle) – solving applied problems in calculating the flow rate, force, piston speed, the time taken in advance, and return strokes of the piston – determining the relationship between the flow rate, the cross section area and pressure drop – determine the work and power of the hydraulic systems – Calculations of designing a simple hydraulic circuit used for raising a certain weight through a certain distance by a certain speed; including the power and capacity of the pump and the tank

size – the types of valves

Fluid kinematics –Fluid flow:

B5 H3 H4

The trainees should be able to:

 Calculate the pressure drop in simple pipes for the compressible (gases – vapors) and

incompressible fluids (liquids)

 Calculate the pressure loss and flow rate in pipes – calculations

of pressure loss using the relationship between the flow velocities, type of flow according

to the approximate formulae

 Determine the pressure loss using

D9 B13 B14

The trainees should be able to:

 Identify the functions of hydraulic oils and the quality

requirements for hydraulic oils

 Identify the characteristics of hydraulic oil and the viscosity effect on the leakage and friction – describe the viscosity expression – be familiar with the different expressions of viscosity – absolute and kinematic viscosity and international and practical units of viscosity – understand the method of measuring viscosity – understand the concept of viscosity index – understand the effect of temperature and pressure on viscosity – be familiar with the type of hydraulic oils – make a suitable hydraulic oil selection after evaluating its different properties (viscosity- incompressibility-foam damping

– ability to separate water and air release- oxidizing resistance – durability - freezing point – flash point – boiling point – suitability

with the hoses

 Be familiar with the incombustible hydraulic liquids

and their different groups

 Know of maintenance instructions, storage and resistance of hydraulic oils – analysis and explaining the meaning of valves symbols,

Types and properties of

hydraulic oils:

 Functions of the hydraulic oils

 Hydraulic oils characteristics

J9 J10

The trainees should be able to:

 Understand the physical quantities and the special units

of the compressed air – volume and pressure laws- atmospheric pressure and its measuring units – absolute pressure – gauge pressure – the physical properties and air laws – the relationship between pressure – volume – and temperature in gases – solve some applied exercises using the laws taught previously, and convert to the

international units SI

Physical properties of air:

 Special unit for compressed

air

 Volume and pressure laws

 Air laws

 Relation between the

pressure-volume – temperature in gases

 Solving a number of applied

exercises

4

J1 J2 J3 J5 J9 J10

The trainees should be able to:

 Understand the concepts of

absolute humidity – maximum – relative humidity – degree of saturation – determine the air humidity in terms of temperature- solve exercises to calculate condensed water – types of flows : laminar and turbulent – the mutual effect between the flow rate and pressure – advantages of using air as a working fluid – describing the methods of air drying – knowledge of installing compressed air tanks and water traps and air pipes – the principles required in the

installation process

 Use charts to calculate pipe diameter – knowledge of using the charts in calculating the equivalent length for the flow resistance through valves and fittings and how to modify the pipe calculations – using charts

to determine flow rate – knowledge of the pressure filter performance – water separator – and oiling device and their

Detailed Curriculum (Practice)

Related Tasks Behavioral Objectives

Contents Hrs

B13 B14 The trainees should be able to:

 Identify the viscosity of the types

of liquids

Viscosity Measurements:

6

B3 B9 H3 H4

The trainees should be able to:

 Apply the laws of hydrostatics

Measuring the hydraulic

pressure through the height of

the measured liquid

8

B2 B3 B5 C7

The trainees should be able to:

 Describe the flow types: laminar and turbulent and knowledge the factors on the types of flow – calculating the Reynolds number

in circular ducts

Reynolds process

14

B5 H3 H4

The trainees should be able to:

 Measure the pressure loss for compressible and incompressible

fluids

 Measure the flow losses

 Measure the pressure and flow

rate losses in pipes

Measuring the pressure loss

and flow rate in the pipes

24

Course Description:

The first part of the course covers batteries, alternators

and starting motors The second part covers the lights,

windshield wipers and horns

The course focuses on the new elements introduced in

the above mentioned systems and circuits for heavy

equipments The practical part of the course includes

many tests as well as disassembly and assembly

procedures for those systems and circuits

The trainees should be able to:

 Identify different components of electrical systems as well as how they work and affect each other

 Understand how to choose the appropriate element for a certain vehicle (i.e battery,

starting motor, etc)

 Be familiar with to check, remove and install different elements

 Modern Farm Power, W., J., Promersberger, D.,W.,

Priebe , F., E., Bishop, Reston Publishing Company&

A Prentice-Hall Company, Reston, Virginia, U.S.A 1979

Detailed Curriculum (Theory)

Behavioral Objectives Contents

Hrs

The trainees should be able to:

 Distinguish between electrical and electronic elements and know their functions

1-Basic electrical/electronic components:

 Brief review about (switches, relays,

fuses, circuit breakers, solenoids, diodes

 Identify alternator components

 Identify how an alternator produces electricity and how a regulator regulates its output

2-Charging systems:

 Charging systems components and

circuits

 Alternator components and operation

 Regulators components and operation

 Electrical starting systems (starting

motor requirements, components and

operation)

 Hydraulic starting systems

 Pneumatic starting systems

4

 Be familiar with light components and circuits

 Be aware of light importance for driving safety

5-Lights:

 Headlights and taillights systems

 Turn-signal and emergency lights

 Stoplights and backup lights

Detailed Curriculum (Practice)

Behavioral Objectives Contents

Hrs

Enable the trainees to:

 Identify if a component is defective

or not (through different tests)

1-Basic electrical/ electronic components:

 Checking, testing and substituting

electrical and electronic components

2

 Learn how to test a battery in a safe way and charge it, in addition to jump starting a heavy-duty vehicle

2-Batteries:

 Application of safety measures

 Performing battery tests and charging as

well as jump starting (case of a 24v

system)

6

 Determine charging system elements and be able to disassemble and assemble alternator components

 Check and test charging systems

3-Charging systems:

 Completing alternator tests (output test,

field current test, etc)

 Performing alternator disassembly and

 Checking and testing electrical starting

systems (no-lead test, cranking current

test, etc)

 Carrying out disassembly and assembly

operations of starting motors

 Testing hydraulic and pneumatic starting

systems as well as removing and

mounting of their important elements

8

 Determine different lights

 Identify removal and installation steps

5-Lights:

 Performing checks and tests concerning

different lights

 Removing and installing different lights

as well as their adjustment

 Carrying out relevant checks and tests,

as well as disassembly and assembly

 Checking and testing horn components

 Removing and installing horns

6

Course Description:

This course is designed to provide the trainees

with both a theoretical and practical background in the

basic operating principals of diesel engines, fuels, and

classifications Practical experience in overhauling,

testing, troubleshooting, and tuning of diesel engines

Disassembly, inspection of parts, reassembly,

maintenance procedures, and running a diesel engine

will also be covered Auxiliary systems such as

lubrication, cooling, intake and exhaust, turbocharger,

and blowers will be emphasized

General Goal:

The trainees acquire basic knowledge of diesel engines operating theories , parts,

classifications, and auxiliary systems Plus the practical experience in inspecting, fault

diagnosing, repair, adjusting, and overhauling diesel engines

Behavioral Objectives:

The trainees should be able to:

 Explain the fundamentals of diesel engines operating theories, parts, and classifications

 Explain cooling, lubrication, and auxiliary systems: such as intake, exhaust systems components and operating theories

 Explain heavy duty brake system components as found in heavy equipment

 Inspect, repair, and adjust diesel engine systems

 Overhaul diesel engines

Topics

 Diesel engines fundamentals

 Four stroke and two stroke cycles

 Diesel engines classifications

 Diesel fuel characteristics

 Cooling, lubrication, intake, and exhaust systems

 Inspection, repair, and adjustment of engine systems

 Fault diagnosing, testing, and overhauling diesel engines

 Diesel Engine and Fuel Systems, Barry Wellington and Alan Asmus

 Diesel and Mobile Plant Technology, Clifford M Tempest

References:

Detailed Curriculum (Theory)

Behavioral Objectives Contents

Hrs

The trainees should be able to:

 Explain diesel engine constructional parts and four and two-stroke cycles

 Distinguish between different types

 Four stroke and two stroke cycles

 Diesel engine classifications

 Diesel fuel characteristics

2

 Explain the stages of combustion in

a compression ignition engine and determine different types of combustion chambers

 Explain the phenomena of 'diesel knock', as well as the causes and factors affecting its occurrence

 Explain the purpose and operation

of glow plugs

engines:

 The stages of combustion

 Combustion chambers (open combustion

chambers, pre-combustion chambers and

 Intake and exhaust valves (valve

seats-valve guides-injector sleeves)

 Methods of cylinder head and valve

service

2