Automobile L2 U3
Contents
1. AUTO SRV L2 NQ icing AUTO SRV L2U3 Vehicle Serv ITI xu edi ES Titus 5 Curriculum Uni AutoL2U3 NQ2012 PREFACE Improving the parity of esteem between the general academic education and vocational education is the policy priority of the Government of India The National Vocational Education Qualification Framework NVEQF developed by the Ministry of Human Resource Development MHRD Government of India is a descriptive framework that provides a common reference for linking various qualifications It will be used for setting common principles and guidelines for a nationally recognized qualification system covering Schools Vocational Education and Training Institutions Technical Education Institutions Colleges and Universities The NVEQF will act as a translation device to make qualifications more understandable to employers students and institutions It will promote transparency of qualifications and facilitate learners mobility between different qualifications thus encouraging lifelong learning PSSCIVE has taken lead in development of learning material for the Automobile Sector for all level in collaboration with the Automobile Skill Development Corporation ASDC The present material contains activity related to Level L 2 for the Automobile service sector This will fulfill the needs of the students willing to learn activities relating to the Automobile Service Sector Any student entrepreneur willin2. AutoL2U3 NQ2012 Session 2 Changing of oil and oil filter Relevant Knowledge As you know engine oil is an important material in a vehicle Incorrect oil levels can cause serious damage to your vehicle s engine so it s important to check the oil level regularly This is very easy to do and just takes a few minutes It is recommended always to keep a 1 litre bottle of oil in your car so that you can top up whenever necessary How to check the oil First choose the right oil for your vehicle or car by checking your vehicle manufacturer s recommendation Ensure that your car is parked on level ground with the hand brake on and the engine off Open the bonnet with the help of a lever under the dashboard and keep it open with its support Avoid touching the hot engine Allow one minute for the oil to settle Put on some protective gloves and pull out the dipstick Wipe it clean with a paper towel and replace it fully for several seconds Then remove it again to study the oil level AutoL2U3 NQ2012 The oil level should fall somewhere between the minimum and maximum marks on the dipstick and may need topping up See the diagram for an indication of how much oil to add Remove the oil filter cap to top up the engine with the appropriate amount of oil preferably using a funnel The scale on the bottle will indicate how much has been used Repeat steps 2 and 3 to check the new level Replace the dipstick a
3. a constituent unit of National Council of Educational Research and Training which is under Ministry of Human Resource Development Government of India AutoL2U3 NQ2012 Student Details Student Name Student Roll Number Batch Start Date AutoL2U3 NQ2012 Contents About this WOrKDOOK ccc cece cece cece ee eeeeeeeeeeeeeeeeeuuueeeeeeenuuuuas 5 Unit information sss III 6 Elements and performance Criterid sssrrssrrrerorrrrrrrrrrr renas 7 Underpinning knowledge and SkillS sssssosssssssssrrsrerrrrrrerrrrrrr nr rna na 3 ASSCS SINGNDU placeres EE ror kund uada dE ELSE PLE SU PEU 8 INTTOCUCTION ccc eeeeeeeeee eee eeee II m me emen eee enn 9 Session 1 Washing of a VehiClGe sssossossssssrrsesrssrrrrrrenrrrr rer ren rr rss 10 Relevant KnOwlede cccccceecceeeeeeeeeeeeeteeeesaeeeengaeeeeeaaees 10 451 6 o gt a en aren KKR KRK RKA An 13 Assessment Activities 2 0 00 ccc cece ccc ece eee c cece rr rr rr rr rr rr K KR KRK RR RKA KRt a 14 Checklist for Assessment A CLEHHVItleS ssssossossosrsssrsrerrrrr eee rr er rer ror ra 14 Session 2 Changing of Oil and oil filtQf sssssssssssssssrrrrersrrrrrr ee eee rna 15 Relevant Knowledge ccccccce cence eee eeeeeeeeneeteeeneeeeeesaeeeeenas 15 51 66 s n ee ee ee ere 18 Assessment CLHNVIlCS ssosossssssesesrsrrrrrrrrr ere rr III 19 Checklist for Assessment ACTIVITICS 00 cece cece eee cece seen eee
4. for changing of oil S No Nameoftols re Prepare a poster showing tools used in changing of oil Session 2 Changing of oil and oil filter Answer the following questions Use additional sheets of paper if necessary Fill in the blanks 1 2 3 Follow vehicle manufacturer s specific and safety directions Choose the ideal oil for your car from the market as per of manufacturer Highly toxic oil must be disposed of with waste Car should be on a surface with the brake on and engine Changing of car s engine and is one of the most important things AutoL2U3 NQ2012 Session 1 Changing of oil and oil filter Checklist for Assessment Activity Use the following checklist to see if you ve met all the requirements changing of oil ad oil filter Part A e Share importance of changing of oil and oil filter Part B e Discussed in class the following e Why oil changing is important e What are the different types of tools used in changing oil and oil filter Steps used in oil replacement process Performance standards criteria covered by this assessment Performance standards Yes No Able to explain importance of oil replacement Able to identify general steps followed in oil replacement 1 AutoL2U3 NQ2012 Session 3 Changing of air filter Relevant Knowledge You know that any vehicle needs air just as much as it needs fuel Air filters keep the inside of the engine free of dust and ins
5. manual e Safety glasses and rubber gloves e Plastic container and funnel e Car jack and jack stands e Drain plug socket wrench e Paper towels and a rag e Oll filter wrench What you have to do 1 Prepare your car The car should be on a level surface with the parking brake on and engine off leaving the oil to cool for a few minutes If you need space under the car jack it up and use jack stands to support it Jacks on their own are very unstable never get under your car without using jack stands You could also put something underneath the engine to prevent spilling oil onto the ground AutoL2U3 NQ2012 2 Unscrew the oil cap Locate the oil cap check with the manual to locate it and unscrew it This is very important as a vacuum will not allow all the oil to drain out 3 Locate the oil drain plug Get underneath the car and locate the oil drain plug This is a lone bolt at the bottom of the oil sump 4 Place the container Place a container big enough to hold the oil beneath the oil drain plug and unscrew the plug being careful not to let it fall into the container Do not come in contact with the oil it can be extremely hot 5 Drain out the old oil Allow all the oil to drain out This can take several minutes 6 Locate the oil filter Locate the old oil filter with the help of your car s service manual It should be identical to the one you are replacing it with 7 Remove the old oil filter Tu
6. rada 19 Session 3 Changing of Air Filter cc cece cece cence ee nns r rr rer r aa 22 Relevant Knowledge mitssssssrresssrrresrrrrrrrrrrr rann rr rer ens rr rn nr rr Krossa 22 CIS Oar ceed eee en pe oe ong ae he He oe cee eee 23 Assessment CtVIlCS ssssososssrssrsrsrererrrrrrrrrrr rr rr rr rr KKR KR KR KRK RR KRKA ns 24 Checklist for Assessment Activities eee 24 Session 4 Changing of Fuel Filter cc cece eee cece eeeeee eae 25 Relevant Knowledge ccccccceceeeeeeeeeeeeeeeneeeeenaaeeeegaateeenas 25 EXBICISO ae ee ne ee RR RR ee 28 Assessment Activitles eecsssseeese meme 28 Checklist for Assessment ACctivitieS cc cc cece eee cece nese eee or r rr ra 28 session 5 Changing of Coolant sossrsseeeeessrssrrrreerrrrr rer rr rr rr r rr ren 29 Relevant Knowledge mitssssssrressrrrreesrrrrrrrrrr earn rr rer rskr rr nennen 29 EXCICISO ssseeserereressrrrrrrr rr rer rr rr rr ee RK KRK RKS re RR KRA 30 Assessment CLHNVIlCS ssososssrsrsrsrererrrrrrrrrrrrr mme 31 Checklist for Assessment ACTIVITICS 00 cece cece eee e ee eee eee eee rara 31 Suggested REAAINGS cc cece cece cence ee eeeeeeeeeeeeeeteeeaeeeeeenees 32 Contributors to the Workbook Development 33 AutoL2U3 NQ2012 About this Workbook This workbook is to assist students with completing the Auto Sector L2U3 NQ2012 unit of competency Vehicl
7. station and observe how the washing of a vehicle is taking place You may see that water is sprayed on the car with the help of mist sprayer Brushes are used for cleaning the body of a vehicle AutoL2U3 NQ2012 Session 1 Washing of a vehicle Exercise Assignment 1 List the steps used in manual washing Prepare a poster showing steps used in car washing of a vehicle ee Session 1 Washing of a vehicle Answer the following questions Use additional sheets of paper if necessary A Fill in the blanks 1 gt cg I is used for cleaning the vehicle Detergent soap powder should be used while washing a vehicle otart cleaning from the roof and work your way to the tyres For cleaning the windows use pieces of on both the inside and the outside of the windows service stations use automatic washing unit in which the operation of washing takes place AutoL2U3 NQ2012 Session 1 Washing of a vehicle Checklist for Assessment Activity Use the following checklist to see if you ve met all the requirements for washing of a vehicle Part A Share importance of washing of a vehicle Part B Discussed in class the following e Why vehicle washing is necessary e What are the steps to be followed for manual washing of a vehicle Performance standards criteria covered by this assessment Performance standards Yes No Able to explain importance of washing a Able to list general steps during washing o
8. ce guide should have recommendations for AutoL2U3 NQ2012 your car You can clean the old filter as long as the material isn t torn cracked or oil stained Use a light to check if it is oily inside Hold a lamp behind it and see if the light gets blocked out by oil Proceed if the light can be seen Now blow out the dust with compressed air if you have it or else vacuum it up Turn the air filter around to clean both sides If you choose to clean the filter you can put the filter back in this time but buy yourself a new filter soon and change at the next check Session 3 Changing of air filter Exercise Assignment 1 List the tools used in changing of air filter S No Nameoftoos p a ee 2 Prepare a poster showing air filter used in automobiles Session 3 Changing of air filter Answer the following questions Use additional sheets of paper if necessary A Fill in the blanks 1 Air filter is used for 2 Air filter is a used for 3 A Air filter should be changed at km 4 Air filters are and to replace AutoL2U3 NQ2012 B Tick the correct answer Air filter is made of A Iron B Wood C Steel D Paper 1 Air filter is cleaned by A Chemical B Air Blower C Oil D Water Session 3 Changing of air filter Checklist for Assessment Activity Use the following checklist to see if youve met all the requirements for pollution control Part A Share importance of air filt
9. covered by this assessment Performance standards Yes No Able to explain importance of coolant a Able to identify coolant a AutoL2U3 NQ2012 Suggested Reading Books Tite Automobile hn Vol Kirpal EA binnan Publishers Automobile Engineering Vol II Kirpal Singh Standard Publishers Text Book of Automobile R K Rajput Laxmi Engineering Publications Automobile Engineering R K Singal S K Kataria and Sons Automobile Engineering Kapil Dev Computech Theory Publications Automobile Engineering K M Moeed S K Kataria and Sons Websites auto indiamart com auto technology www automobileindia com consumer guide automobile technology auto indiamart com auto technology books google com books about Automobile Engineering html www bikeadvice org www wikipedia com www shell com home content ind products_services on_the_road AutoL2U3 NQ2012 List of Contributors 1 Mr Sunil K Chaturvedi CEO Automotive Skills Development Council Core 4 B 5 Floor India Habitat Centre Lodhi Road New Delhi 110 003 2 Mr A C Deb Sr Lecturer Auto HOD PUSA Polytechnic PUSA New Delhi 12 3 Mr Vikas Gautam S B V NO 1 Morigate Delhi 06 4 Prof A P Verma Ex Prof amp HOD PSSCIVE Bhopal 5 Sh Deepak Shudhalwar Assistant Professor E amp T Division PSSCIVE Bhopal 6 Dr Saurabh Prakash Associate Professor E amp T Division PSSCIVE Bhopal Programme Coordinator
10. e Servicing Students should study the workbook in class or in their own time This workbook contains sessions for imparting knowledge amp skills on various basic aspects of the unit of competency The workbook also includes information exercises and assessment activities to complete The assessment plan has been included in the workbook to assist you in scheduling your time for completing the assignments Each assessment activity is followed by a checklist for meeting the assessment criteria The criteria will help you to ensure that you have fulfilled all of the assessment requirements to receive a competency grading Certification by ASDC AutoL2U3 NQ2012 Unit Information Unit name Vehicle Servicing Unit code Auto L2U3 NQ2012 Unit descriptor This unit provides introductory knowledge amp skills covering vehicle servicing specially car washing changing of oil fuel and air filter replacement of a vehicle Students will be given a broad view of these Important issues Resource Required e Notebooks Pen Pencil Eraser Computer Open Source Software for making digital presentation LCD projector Sketches pictures animation and videos of oil air filter of automobile and its components Posters for building awareness about these topics e Nominal hours 40 hours AutoL2U3 NQ2012 Elements and Performance Criteria e Elements define the critical learning outcomes of a unit of competency e Performance crit
11. e in the bucket of soapy water and sponge the roof of the car e Spray off excess soap when the entire roof has been cleaned Fig Manual car washing e Clean the tyre sidewalls with a plastic brush e Clean the car with the water pipe properly so that there is no soap or dirt spot e ake an old towel and dry the car thoroughly by setting the towel flat against the surface of the car and dragging it along the surface to pick up any water spots Start from the roof and work your way down to the tyres e For cleaning the windows use pieces of newspaper on both the inside and the outside of the windows Rub and clean metal or chrome parts so that there are no water spots AutoL2U3 NQ2012 Fig Car washing with cloth Precautions during washing e Wear old clothes for this job e Soap dries fast Wash one side at a time to keep the soap from drying on your car s paint e Wet and wring out your clothes before you dry it will absorb water better e Do not use detergent dish soap Detergent dish soap is designed for dishes Use car wash soap only Washing at a Service Station Similarly a vehicle is also washed at service station or a car wash station The service stations use automatic washing unit in which procedure of washing takes place In an automatic washing unit cleaning as well as shampoo washing takes place You can view here a photo of automatic washing unit You may plan a visit to nearest car service
12. ects Replacing or cleaning air filter at the recommended interval to keep air flowing freely helps the car run well Air filters are inexpensive and quick to replace so we can do this routine maintenance with ourselves Material and Tools Requirement for the changing of air filter e anew air filter specifications as recommended by the manufacturer e aflat screwdriver a Phillips screwdriver e a compressor air valve w hose Steps Obtain the correct replacement filter It should be the same as the one you will replace Consult your vehicle service manual or auto parts store if you need assistance finding the right part Secure the vehicle Park the car on level ground and apply the parking brake Shift into first gear manual transmission or Park automatic transmission and turn off the ignition Open the bonnet hood Release the bonnet with the lever inside the car Move the exterior bonnet catch for final release Lift the bonnet and secure it with the prop rod Locate the air filter Air filter is located on the top of engine Remove the air filter cover Loosen the hose clamp that seals the air conduct Undo all the screws holding the air filter cover Some models have wing nuts other air filters are just clamped on with a quick release system Keep screws and other parts together and in a safe location so you can find them later Pull the cover out of the air conduit and lift it up so it comes off the lower part of the hous
13. er used in vehicle Part B Discussed in class the following e Why air filter is important e What are the different steps used in changing of air filter Performance standards criteria covered by this assessment Performance standards Yes No Able to explain importance of air filter EE Able to identify air filter BENE AutoL2U3 NQ2012 Session 4 Changing of fuel filter Relevant Knowledge Changing a vehicle s fuel filter is a regular part of normal maintenance Dirt in the fuel is captured in the filter and over time clogs the filter causing it to operate less efficiently The clogged filter reduces fuel pressure to the vehicle Replace the filter at the manufacturer s recommended interval Material and tools requirement for the changing of fuel filter e Safety glasses or some other sort of eye protection e Replacement filter e Screwdriver to undo clamps e Container to catch fuel that leaks from hoses e Rags to clean up any spilled fuel dispose of them if used e Specialty tools Some vehicles require the use of special tools to disconnect fuel fittings including the fittings connecting the fuel filter These tools should be available at the same parts store from which you purchased your fuel filter Steps e Purchase the filter e locate the old filter it may be in the engine compartment or under the car near the fuel tank e f recommended by manufacturer follow procedure to remove fuel pressure Un
14. eria specify the level of performance required to demonstrate the achievement of the Competency Element Element of knowledge Performance Criteria e Washing of a vehicle e Able to wash a vehicle e Able to handle the washing equipment e Changing of oil and oil e Able to check and change the oil filter of engine e Able to check and change the oil filter of engine e Changing of Air filter e Able to check and change the air filter of engine e Changing of Fuel filter e Able to check the fuel of engine e Able to replace the fuel filter of engine e Changing of Coolant e Able to check and change the coolant of vehicle AutoL2U3 NQ2012 Relevant Knowledge and Skills 1 Relevant Knowledge e Car washing e Air Filter e Oil Filter e FuelFilter e Fuel replacement e Oil replacement e Coolant replacement 2 Skills Able to do replace above items in a vehicle Assessment Plan _ Assessment method Completion Date Fill in the Blanks Fill in the Blanks ee Fill in the Blanks ee AutoL2U3 NQ2012 Introduction When you getup in the morning and clean your face and body regularly it makes you feel fresh You use soap shampoo and detergent for cleaning Similarly a vehicle requires a cleaning operation Cleaning of vehicles is very important It makes the vehicle look better and gives comfort to the driver and passengers We have to change the oil lubricant and coolant of a vehicle whenever its q
15. g to start an Automobile service Sector can acquire the desired competencies with the help of this book The book has been written by experts but reviewed by all the members of the group am grateful to the authors for the development of this book and to the members of the Working Group for their candid suggestions during the development and review Their names are given elsewhere appreciate efforts put in the by Dr Saurabh Prakash as the Project Coordinator of the Working Group in planning and organizing Meetings which led to the final form of this title shall be grateful to receive suggestions and observations from readers which would help in bringing out a revised and improved version of this book Prof R B Shivagunde Joint Director Bhopal Pandit Sunderlal Sharma June 2012 Central Institute of Vocational Education AutoL2U3 NQ2012 Ministry of Human Resource Development 2012 Copyright protects this publication Except for purposes permitted by the Copyright Act reproduction adaptation electronic storage and communication to the public are prohibited without prior written permission This student workbook was developed with active involvement of the Automobile Skill Development Council ASDC keeping in view the National Occupation Standard NOS for Service Technician L4 developed by ASDC This project for development of the student workbook was coordinated by the PSS Central Institute of Vocational Education
16. ing AutoL2U3 NQ2012 Take out the air filter Now you can see a round or rectangular filter made of cotton paper or gauze Filters have a rubber rim that seals off the unit s interior Simply lift the filter out of the housing Clean the air filter housing Connect the air hose to the compressor and use the compressed air to blow out the dust or use a vacuum cleaner to suck up any dirt S videnjug Fig Cleaning of air filter housing Seal the air conduit with removable adhesive tape It only takes a minute and that way you won t get any dirt into the engine whilst cleaning Replace the filter Replace the old filter with a new one Simply insert it into the housing with the rubber rim facing up Make sure the edges are sealed by the rubber rim Replace the cover Carefully insert the cover back into the air conduit and then press the entire piece down onto the lower half of the air filter unit Make sure it s on straight and securely otherwise you could alter the engine s performance Tighten all the screws or clamps and recheck that you have put everything firmly back together by rocking the unit gently with both hands Shut the bonnet securely Check the filter regularly to keep your car breathing at maximum efficiency by keeping the dust out Change the filter every 50 000 km or about once a year If you drive in a dusty area it will need replacement more often Your vehicle s service manual or periodic maintenan
17. its overheating transferring the heat produced by the device to other devices that use or dissipate it An ideal coolant has high thermal capacity low viscosity is low cost non toxic and chemically inert neither causing nor promoting corrosion of the cooling system While the term coolant is commonly used in automotive residential and commercial temperature control applications in industrial processing also Changing of coolant Most people never change their engine coolant or even know that they should Whether you call it coolant antifreeze or radiator fluid it s the stuff that helps keep your car s engine from overheating and without it your car most certainly will overheat quickly and cause massive damage to the engine To keep your radiator system free of corrosion and performing well keeping your car engine cool you should change it about every two years Check your auto s manual for when to change your coolant While it s a general rule to change vehicle coolant every two years some manufactures differ on the coolant they use Material and Tools Requirement for the changing of coolant Coolant e Pan e Coolant e Spanner Steps 1 Purchase the coolant as per manufactures specifications 2 Prepare the vehicle Keep your car in plain space and keep engine off for few hour so that engine is cool 3 Keep a pan below radiator 4 Open the radiator cap and see level of coolant AutoL2U3 NQ2012 D O CON OO Open
18. nd the oil filler cap securely Clean any finger marks from the bonnet and wipe any oil from your hands with a moist towel disposing of any waste materials in an appropriate place When you notice that your oil level is below the minimum mark find out how many kilometers have passed since the last oil change If you re not sure refer to your handbook for recommended oil change intervals or if your mileage is above 15000kms its advisable to perform a complete oil change If the mileage is between 4000kms and 15000kms you will only need to top up your oil You may see the vehicle service manual and find the recommended time or distance for changing of oil regularly so that you can o keep your car running well Over time your oil breaks down and your filter AutoL2U3 NQ2012 becomes clogged with contaminants Fortunately changing your oil is both easy and inexpensive You will learn it in this section How to change the engine oil yourself Changing your car oil is easier than it sounds and could also save you money in the long term It shouldn t take longer than 45 minutes just make sure that you follow your manufacturer s specific instructions and safety directions Firstly choose the ideal oil for your car from the market as per recommendation of the manufacturer Material and tools requirement for changing of the oil e Engine Oil 4 or 5 litres check the vehicle s service manual e New oil filter check vehicle s service
19. rn the filter wrench anti clockwise to loosen the oil filter The filter may be full of oil so take care not to spill any 8 Prepare the new filter Clean up the filter seat on the engine and place a light coating of oil on the gasket of the new filter AutoL2U3 NQ2012 9 Install the new filter Carefully screw the new filter into place by hand making sure it is not over tight Screw back in the oil drain plug and tighten it with the wrench 10 Fill up with oil Using the funnel carefully fill the engine oil avoiding spillages Measure the oil level with the dipstick after every two litres filled Fig Fill up oil with funnel 11 Check the level is correct When oil has reached the correct level replace the oil cap Turn on the engine for ten minutes and then off again Check the oil level with the dipstick once again if the level is low add more oil 12 Clean up Clean up all oil spillages on your engine and check for any leaks from the drain plug 13 Properly dispose of the old oil and filter Used oil is highly toxic and must never be disposed off with domestic waste It s illegal to pour used oil into the sewage network Put the used oil in a AutoL2U3 NQ2012 sealed container and label it Then take it to an auto repair centre service station or recycling centre Most places will accept used oil for free Session 2 Changing of oil and oil filter Exercise Assignment 1 List the tools required
20. screw each hose clamp bolt until it nearly comes apart from the nut Push the clamp up the hose Hemove the old filter and replace with new filter Run the engine and check for leaks CN T e N O Co N O jud lt Fig Photographs of Replacing Fuel Filter 28 AutoL2U3 NQ2012 Session 4 Changing of Fuel filter Exercise Assignment Prepare a poster showing fuel filter used in a vehicle Session 4 Changing of Fuel Filter Answer the following questions Use additional sheets of paper if necessary A Fill in the blanks 1 Fuel filter is used for 2 Fuel filter removes from fuel 3 Clogged filter fuel pressure to the vehicle 4 Replace the at the manufacturer recommended interval Session 4 Changing of Fuel Filter Checklist for Assessment Activity Use the following checklist to see if you ve met all the requirements for change of fuel filter Part A e Share importance of tools used in workshop Part B Discussed in class the following e What is meaning of fuel filter tools e What are the different between oil and fuel filter e Name two popular tools used in removing fuel filter Performance standards criteria covered by this assessment Performance standards Yes No Able to explain importance of fuel filter EBENE Able to identify fuel filter AutoL2U3 NQ2012 Session 6 Changing of Coolant Relevant Knowledge Coolant A coolant is a fluid which flows through a device to prevent
21. the drain plug nut below radiator chamber by using wrench or by hand if possible Coolant will start coming out and all coolant will be emptied Put back the drain plug at the bottom of radiator Fill the radiator to the top with the coolant Turn the engine on Let it run for several minutes to get any air out of the system Watch the temperature gauge to make sure the car does not overheat After the radiator has burped up air bubbles turn the car off and carefully fill the radiator to the top with coolant Close the radiator cap tightly Watch the temperature gauge carefully for the next few days Session 6 Changing of coolant Exercise Assignment Prepare a poster showing coolant being changed in a vehicle Session 6 Changing of coolant Answer the following questions Use additional sheets of paper if necessary A 1 2 3 4 Fill in the blanks Coolant is used for Coolant removes from engine Coolant should be changed at every year Replace the at the manufacturer recommended interval AutoL2U3 NQ2012 Session 6 Changing of coolant Checklist for Assessment Activity Use the following checklist to see if you ve met all the requirements for coolant change Part A e Share the importance of coolant Part B Discussed in class the following e What is meaning of coolant e What are the different between oil and coolant e Name tool used in changing coolant in vehicle Performance standards criteria
22. uality is disturbed We have to properly check all the important components of a vehicle In this Unit you will develop an understanding of the methods of washing car procedure for changing of oil coolant lubricants air and water filter of a vehicle so that the efficiency of a vehicle increases AutoL2U3 NQ2012 Session 1 Washing of a vehicle Relevant Knowledge We see in the picture that a person is washing the vehicle by cloth It is a common practice in our country We may call the person cleaning a vehicle carwash wala He comes in the morning to your house collects the keys of your vehicle and cleans the car Generally this person keeps two type of cloths with himself first one is dry and other one is wet Dry cloth is used first for removing dust and the wet cloth is used for cleaning You can see in these photographs a carwash wala is manually cleaning the vehicle Fig Manual car washing Proper steps for manually cleaning a vehicle We will learn here the step by step practice to be followed while washing a vehicle our selves e lt is suggested that a shady spot should be chosen preferably away from trees so that the car doesnt get leaves etc e All the doors and windows should be closed e Take a bucket of clean water and pour one full spoon of car soap AE RE SS AutoL2U3 NQ2012 e Remove the dirt from the car starting at the roof and getting down to the tyres e Take a sponge or terry cloth piec
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