TRADE: MECHANIC (DIESEL) DURATION OF TRAINING: - ONE YEAR Syllabus For First Year Week No. 1-26 QUALIFICATION: PASSED CLASS 10TH EXAMINATION UNDER 10+2 SYSTEM OF EDUCATION OR ITS EQUIVALE NT Weekwise Syllabus:1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 1. Introduction and Safety Training : Achievement expected. Awareness on the role of I.T.I in national building activity. Scopes of trade –mechanic (diesel) Safety rules and safety precautions to be observed in the shop floors. Awareness on disciplinary rules and communication channel in the shop floor or working area. Week Theory Practical Engg.Drg Workshop No. cal & . science 1. General introduction to Familiarization with the the course-duration of institutes. Importance the course and course of the trade machinery content. Study of the used in the trade – syllabus general rules types of work done by pertaining to the students in the institute institute facilities shoo floor of the available Hostel institute. .Recreation and medical facilities- library working hours. Time table. 2. Importance Safety or Description of safety general precautions to Equipment their use – be observed in the safety rules to be shop – fire observed in an Extinguishers used for Automobiles repair different types of fire shoo. Accidents their storing and handling of causes works of fire. inflammable materials Fire Extinourshers – – Elementary First Aid. Familiarization of the tools machinery available in the shop their use and up keep importance of maintenance cleanliness of workshop. Tools, Jacks. Trays and Hoses. 2. Allied trade work – fitting Week Theory Practical Engg. Drg. Workshop cal & No. science 3. Systems of Demonstration of the Introduction Simple workshop measurement use of Fitter’s Hand to Problems conversion of English Tools marking off Engineering involving addition into metric with steel rules drawing and Subtraction measurement and calipers, scriber, Blue Print multiplication and vice versa – marking dividers Dot and Reading, Division of whole media – Chalk center punch – Free Hand numbers. mechanic Blue Red Chipping in marked Sketching of lead and Tools used lines in a given piece Straight for marking steel Sharpening of Lines. rule. Try Square, Chisels. Center Rectangles caliper and dividers, punch and Dot punch Squares and scriber prick and to correct Angles. circles. centre punch- Hammer and Chisel – uses and maintenance – safety precautions in handling Grinding machines. 4. Types of hacksaw Hacksawing Filling to Free Hand Common frames and Blades- given Dimensions – Sketching Fractions, Their selection and Filling True and with additions, uses- types of files square – Practice Dimensions subtraction, and their uses. Care different types of and multiplication and and Maintenance of filling operations – proportionate division of files . Types and marking and drilling sketching of common sizes of Drills- cutting clear and Blinds circles Fractions – Angles and speeds Holes sharpening of Rectangles Vulgar Fractions of Drills – Calculation Twist Drills Safety squares – single Shop of Tap drills sizes. precautions to be Parellograms, problems observed while using Rhombus, involving a drilling machine. Polygons. Fractions. 5. Tapes and Dies – Tapping a Clear and Reading of Applied Description use of Blind Hole – simple Blue workshop different types Tapes Selection of tape drill Prints problems and Dies – Use of ‘V’ Size – use of Sketching of involving Threads – Lubrication – Cutting simple solids Fractions and precautions while Threads on a Bolt/ such as vulgar Fractions using taps and Dies Stud – Adjustment of cubes. – Description and two piece Die – Rectangular use of different types Reaming a hole/ Blocks, of Scrapers. Bush to suit the given Cylinders. Reamers and Emery pin/ shaft – scraping papers. a given machined surface. 6. Construction and Measuring diameter --DO-- Properties of method of reading of pistons main Ferrous Metals – micrometers ( journals, Crank – Their uses – Internal and external pins, king pin big end Cast Iron. ) and Vernier Caliper and main bearings Wrought plain correct handling of cylinder Bores with and High carbon micrometers and micrometers and Steel – High vernier Calipers, Vernier Calipers – speed steel and Reading of vernier measuring with and Alloy steel. Scale – Description Thickness of and use of machined flat and combination set care round bars – and maintenance of measuring of valves micrometers, vernier angles with protractor calipers, combination head locating centers set. of a round bar with center head. ALLIED TRADE SHEET METAL WORK 7. Sheet metal workers Joining of metal parts Free hand --DO-- hand tools their by Soft Soldering – sketching of description and uses Simple marking out Nuts – Bolts – description of on sheet metal and – Studs – simple soldering and cutting – Bending with brazing, Fluxes used and folding. dimensions for common joints – from Types of sheet metal samples. joints – their uses. 8. Sheet and wire Practice in silver Sketching of Properties of non gauges the blow soldering pipe views of solid Ferrous metals lamp and its uses bending, Annealing bodies such and Their uses pipe fitting of pipes fitting as square copper, zinc, Explanation of Nipples Unions and lead, tin, brass, various common soldering and Rectangular Aluminum, metal sheets used in Brazing of pipes. Blocks – Bronze, solder, sheet metal shop. Hollow wearing metals. cylinders rings cones. Week Theory Practical Engg. Drg. Workshop cal No. and science 9. General Exercise involving Freehand Brief description description and use of wrenches, sketching of of manufacturing construction of pliers, screw rivets process of non – diesel engine – drivers and pliers – washers ferrous metals i.e. Characteristics cleaning and with . copper, and lubrication of dimensions aluminum, zinc Classification engine parts, from and tin. working location and Samples. principles of 4 identification of stocks cycle engine diesel and Petrol components. engine comparison between petrol and diesel engine. 10. Two stroke cycle Practice on Free hand --DO -- diesel engine unserviceable sketching of types of diesel engine, Bolts and scavenging removing jammed Nuts with uniflow and nuts and broken dimensions 1oop flow studs from Scavenge reconditioning and Samples. opposed copper damaged stud hole piston engine fitting oversized differences studs. between two strokes and 4 stroke cycle diesel engines. 11. Engine details – Selection of Explanation F.P.S. & C.G.S. cylinder materials for of simple system Metric materials – gaskets and orthographic weights and cylinder liners packing – use of projection measurements, and their locking devices hand conversion advantages, lock nuts . cotters, sketching of factors cylinder heads, split pins and 4 stroke- 2 description circlips lock rings- stroke function, cares location where cycles and they are used maintenance – inspection and Location checking leakage combustion of air, fuel oil and chamber in exhaust in the cylinder heads engine and also heater plugs and port and valve arrangements.- 12 Combustion Practice on starting Explanation Shop problems chambers and stopping of of simple on metric system pumps , open diesel engines Use orthographic of weights and and closed of speed counter in projection in measurements. types, determining the 3rd angle advantages, and engine speed – disadvantages running of engine compression on load checking ratio & temperature fuel compression and oil pressures, compression compression testing of cylinders testing of cylinders and analysis of results & its importance 13 Need for Maintenance Views of Meaning of maintenance check – daily simple tenacity elasticity, check up in weekly monthly for hollow and malleability diesel engine- different types of solid bodies brittleness preparation of engines writing up with hardness maintenance of inspection dimensions compressibility schedule from schedules— and ductility with charts of popular Maintenance of log example makes of engine sheets details of maintenance ACHIEVEMENTS : THE TRAINEE SHOULD BE ABLE TO DO: 1. Simple fitting operation of marking, chipping, hacksawing, filing, drilling and tapping, dieing, reaming and scraping 2. Simple sheet metal joints , soldering , pipe bending and use of simple sheet metal tools 3. Remove jammed bolts, nuts, and prepare maintenance schedule 4. Start and stop diesel engine and observe its performance 5. Compression testing of cylinders and analyze results 14 valves & valves Remove , rocker Free hand Effect of alloying operation- arm assembly sketching of elements on Mechanism- manifolds- and valve, valve properties of cast parts & function cylinder head- springs, iron and steel of each valve removing valves valve timing diagram and its parts – assembly camshaft and cleaning & with timing gears – decarbonising - dimension types of drives checking valve used in engines seats & valve chain tension guide – and its reconditioning importance valve seats and cylinder head refacing valves- and manifold lapping valves on construction and its seat- testing function – water leaks of valve jackets seats for leakage – passages inspection of cylinder head and manifold surfaces for warping and cracks 15 Description and Dismantle rocker Simple Square root of function of valve arm assembly isometric perfect square parts- clean & check view of and whole maintenance shaft- bushes , objects such number square Materials used – posts and rocker as square, root of decimal necessity of arm for wear and rectangle valve clearances cracks and and cubes prescribed by reassemble. Check makers of valve springs, engine – effects tappets, push rods, of incorrect tappet screws and clearances- valve stem cap. common Reassembling troubles and valve parts in remedy –reason sequence , refit for wrapping of cylinder head and cylinder head manifold & rockarm assembly , adjustable valve clearances, starting engine after decarbonising 16 Piston and Removing piston & Free hand Shop problems piston rings connecting rod sketching of involving square Function-types from engine- piston roots and material . examine-piston gudgeon used ring lands for wear- pins rings recommended examine piston and clearances for skirt for cracks & connecting the rings and its distortions, clean rod with necessity- oil holes - check dimensions precautions connecting rod for from while fitting bend and twist and samples rings- parent bore for connecting rods- taper and ovality types function and gudgeon pin and material bushes for wear- used- methods check elongation of fixing of cap fixing bolts gudgeon pin on small end method of lubrication provided for small end bushes 17 Crankshaft- Removing Free hand Ratio and construction & crankshaft and sketching of proportions. shop functions camshaft from crankshaft problems material used - engine -checking and arrangement of crankshaft for bend flywheels crank pins and & twist -checking with main journals- oil retainer and dimensions balancing thrust surfaces for from methods- fly wear-measure samples wheel - crank shaft journal construction & for wear -checking its function and flywheel and material used mounting flanges, Rim marks and spigot, bearing- balancing. check vibration Elementary damper for defects knowledge of -check cam shaft function of clutch for bend & crank & coupling units attached to flywheel. 18 Description & Checking cylinder Free hand Mass , unit of function of blocks surface - sketching of mass, force- cylinder block- measure cylinder cylinder absolute unit of material used - bore for taper & block and force-weight of a cylinder liners -& ovality- check main cylinder body . Shop details crank bearing parent head problems case and oil pan bore for taper & and their ovality clean oil construction gallery passage water jacket and oil pipe line- passages & wall check main thickness bolt bearing cap bolt hole dimensions holes check cam for cylinder head shaft, bearings and fixing provision tappet bore - for mounting descale water accessories like passages and oil pump, water examine Welsch pump filters - oil plugs check flow passages cylinder head for and cleaning warping. plugs 19 Engine Fixing bearing Free hand Mass, unit of Bearings- inserts in cylinder sketching of mass, force- classification block & cap check bearing with absolute unit of and location nip and spread dimensions force weight of a materials used & clearance & oil from sample body , shop composition of holes & locating problem bearing lugs fix crank shaft materials - Shell on block-torque bearing and their bolts - check end advantages - play remove shaft - special bearings check seating, material for repeat similarly for diesel engine connecting rod and application Check seating and bearing failure & refit. its causes - care & maintenance. 20 Friction - its Overhauling oil Freehand Example of useful meaning and pump , oil filters oil sketching of and wasteful impo0rtance, coolers aircleaners oil filters oil friction. methods to and airfilters and pumps, oil reduce friction in adjust oil pressure coolers with engines - use of relief valves - dimensions lubricants - oil changing oil in the from grease high sump, repairs to oil samples. detergent oil for flow pipe lines and diesel engine unions. lubrication - properties of lubricants. 21 Need for . Reassemble all Freehand Example of useful lubrication parts of engine in sketching of and waste friction system for diesel correct sequence Examples of in engine, applied engines - types and torque all bolts oil pumps oil problems. used and layout and nuts as per coolers with of the system by makers dimensions pass & full flow recommendations from arrangement- for engines. samples. types of oil pumps oil filters, oil coolers, common troubles - care and maintenance 22 Engine Reassemble all Free hand Work, Unit of assembly parts of engine in sketching of work Energy procedure need correct sequence cylinder Power, Unit of for cleanliness and torque all bolts liners with power. and special tools & nuts as per dimensions and gauges markers, form sample used for engine recommendations assembling, for the engine - Fit practice - accessories & start periods of and run the engine decarbonising on stands and overhauling engine interms of hours of run or mileage - running in procedure of overhauled engines. 23 Cylinder liners - Removing cylinder Freehand Work, Unit of construction & liners from scrap sketching of work energy purpose - cylinder block, cylinder power - unit of material used practice in liners with power - shop and finish measuring and dimensions problems. provided types refitting new liners from of liners in use - as per makers sample. methods used to recommendations fit the same in precautions while cylinder bore, fitting new liners. advantages of wet and dry liners wear pattern & allowable wear cylinder wear and its causes. 24 Need for cooling Removing radiator Freehand Ratio & an engine and water pump sketching of proportion. general from engine, water pump description & cleaning & reverse thermostatic types of air and flushing. Radiator, valve & liquids - cooling testing thermostat water used in engine - and refitting on jackets in layout of cooling engine-overhauling the cylinder system and -water pump block. parts in the refitting - adjusting layout-function fan belt tension of parts like and connecting radiator - water pump with thermostat & radiator with hoses need to maintain & flushing cooling engine working system of the temperature. engine. 25 Description & Dismantling air Ratio and operation of Air compressor and proportion compressor and exhauster-cleaning problems. exhauster all parts - attached to measuring wear in transport vehicle the cylinder and engines - blades- -do- common reassembling all troubles & parts and fitting maintenance of them in the engine. both their specific application for the brakes of the vehicle. 26 Description of Dismantling a Freehand Different forms of internal & petrol engine in a sketching of heat energy- external engines systematic 4 stroke mechanical and - different types procedure - clean cycle 2 electrical of I C Engines & inspect all parts stroke cycle parts of an IC for wear & reusage valve timing Engine-4 stroke - check oil diagram. O T T O cycle clearance reset engine - 2 stroke main and petrol engine - connecting rod deference's bearings - check between the two cylinder wear & k- importance of examine piston valve timings and rings and parts of connecting rods- valve operating and crank shaft system reconditioning if description and necessary - operation. reassemble all parts in sequence as per makers, recommendation - adjusting valve tappets-start & adjust slow speed of the engine. TRADE: MECHANIC (DIESEL) DURATION OF TRAINING: - ONE YEAR Syllabus For First Year Week No. 27-52 QUALIFICATION: PASSED CLASS 10TH EXAMINATION UNDER 10+2 SYSTEM OF EDUCATION OR ITS EQUIVALENT Weekwise Syllabus:27, 28, 29, 30, 31, 32, 33, 34 TO 35, 36TO 37, 38 TO 39, 40 TO 41, 42, 43, 44 TO 45, 46, 47, 48, 49, 50, 51, 52 Week Theory Practical Engg. Workshop cal No. Drawing & Science 27 Brief Description of Practice on engine Freehand Different forms of engine components - tune up operations sketching Heat Energy their location and involving testing of parts of mechanical and function - cooling and vacuum and and Electrical their lubrication system - compression of engine. conversion from parts and layout of the engine, adjusting valve Freehand one to another system -layout of clearance, setting and sketching with examples. parts in the system & adjusting ignition of layout of function of each part timing adjusting fuel supply Ignition system in a carburetors for slow system petrol engine system speeds Overhauling Ignition Layout & Parts of AC Pump & Testing for system - ignition system and its working cleaning lubrication functions of each part spark plugs & testing and working of the system and setting as per cooling importance of Firing maker's system. order and Adv. Retard recommendation mechanism. starting engine. Adjusting slow speed. 28 Visit to Local Industrial Plants and Factories. 29 Step by step method Trouble shooting in Views of Measuring of of diagnosis of cooling and lubrication solid & Horse Power troubles in the system/engine hollow IHP, FHP and lubrication and cooling checking up and bodies cut applied shop system-reasons for connecting oil and sections problem. engine overheating & water leaks - changing plane. remedies for the defective packing and same. Crank case gaskets - testing dilutition and functioning of crankcase ventilation thermostat. flow test rate recommended for radiator. 30 Reasons for Diagnosis of engine Views of Meaning of horse development of noises faults like main bearing hollow & power IHP in the engine - noises piston pin solid BHP,FHP components - noise flywheel knock & bodies cut applied shop rectification , methods valve noise- and crank section problems. of assembling practice noises and diesel plane . to be followed during knock. engine overhauling as per makers shopmanual. 31 Reasons for Diagnosis of engine Practice on Effects of force excessive exhaust faults like smoky, blue print on materials like smoke overheating exhaust, over - heating reading. bending twisting vibration, missing & , heavy vibration, and shearing hunting noises in an missing cylinders, problems. engine methods of exhaust noise , hunting eliminating these characteristics of noises for smooth engine and erratic or working of the engine. irregular idling. 32 Starting methods used Diagnosis of reasons Further Torque - for starting diesel for starting difficulty in practice in definition - engines used for a diesel engine and blue print example torque transport, agricultural rectifying the faults. reading. wrenches marine, industrial application - purposes-brief problems description. Of each involving torque method - methods to values of engine. eliminate starting difficulty in a diesel engine. 33 Necessity of strong Practice in erecting Freehand Shop problems foundations for diesel over - hauled engines sketching on determination engine-details for on stands & of engine of volume & diesel engine -details foundations mountings, weight of simple of foundation bolts & preparation of templates bodies. nuts-composition of a templates of & fixing good mix for grouting foundation holes of the brackets & foundation bolts engine base- stands. dimensions of pits & preparation of hold - Boxes to suit engine down , bolt and Nuts base-purpose of and boxes for template-need for foundation pits-starting aligning the engine on engine on foundation HD Bolts. and observing vibrations. 34 to Fuel feed system in Cleaning fuel tanks- Freehand Menstruation of 35 diesels -Air injection checking leaks in the sketching areas volumes & and airless injection. fuel lines-soldering & of water weight Systems their general repairing pipe lines separators calculation solid description and lay out and Unions - brazing and fuel bodies, importance of water nipples to high tanks with separators - pressure line studying dimension constructional details the fuel feed system in from of water separators. diesel engines-draining sample. of water separators 36 to Fuel filters-types & Bleeding of air from Freehand Centre of gravity 37 constructional details - the fuel lines-servicing sketching of bodies-stable reasons for using no. primary & secondary of fuel feed & unstable of filters sequence of filters-removing filters system Neutrals & replacement of filter elements -in pressure and of equilibrium- elements Importance filters. filters. Examples & of Diesel fuel Problems on cleanliness-types of Centere of diesel fuel HSD & gravity. LSD Description of O. F. valves & their functions. 38 to Constructional details Dismantling an Freehand Simple levers 39 of fuel injection unserviceable fuel sketching with examples i. pumps, feed pumps injection pump - feed of Simple e. bell - crank and governors- pump governor fuel lever & other explanation of function studying the parts and injection used in engine - and operation. reassemble general pump with Advantage: in maintenance of F. I. dimension using them Pumps. from Problems on samples. lever. 40 to Importance of timing Removing a fuel Lettering Heat and 41 the pumps with engine injection pump from an numbers & temperature closed slot croos engine-refit the pump alphabets scales of coupling marks to the engine re-set and temperature Fh vernier scale on timing - fill lubricating- freehand and Centigrade - coupling advancing oil start and adjust sketching their - and retarding methods slow speed of the of feed conversions - effect of over engine. pump. temperature advancing-timing measuring device and its details - devices used in critical adjustments of engine shops Jerk-pump phasing engine . and calibration - adjustment for maximum speed idle speed & smoke limits. ACHIEVEMENTS : The trainee should be able to do : 1. Diagnose engine noises of different nature and rectify 2. Diagnose faults in lubrication and cooling system and rectify 3. Erect diesel engines on foundations 4. Repair leaks in fuel lines and bleed air from the system 5. Overhaul filters and bleed them 6. Follow safety precautions while doing the above work. 42 Governors - Start engine adjust Freehand Definition of pneumatic type- idling speed and sketching of a stress, strain construction & damping device in pneumatic and modulus of operation-venturi unit pneumatic governor governor with elasticity and its purpose and and venture control dimensions ultimate action-precautions to unit checking from samples. strength types be observed in performance of of stresses- attending to the engine with off load factor of safety governor-definition of adjusting timings. examples and rated speed - problems. maximum speed-over run of governors- purpose of auxilary venturi in the Governor-principle of idling damper. 43. Mechanical governors Start engine- Freehand Definition of Their construction, adjusting idle speed sketching of stress strain function and operation of the engine fitted mechanical and modulus of under different load with mechanical governor with elasticity and speed and governor checking- dimensions ultimate maintenance- high speed operation from sample. strength types common troubles and of the engine. of factors of remedies. safety stress- examples and problems. 44,45. Fuel injection Nozzles Checking Freehand Mechanical description and performance for sketching of advantage operation of each type missing cylinder by different types velocity ratio spray angles and isolating defective of nozzles and efficiency orifices and their injectors and test- (cut section) example and characteristic-injector dismantle and lettering problems. tester- construction replace defective practice. and function types of parts and reassemble tests and their and refit back to the purpose. Effects of engine importance of incorrect setting of correct torqueing- nozzles on engine while assembling the performance. unit and also fitting on to the engine. 46. Importance of Repairing of grease Freehand Determination periodical guns oil cans-oil sketching of of mechanical maintenance and spray guns & other grease gun advantage- upkeep of shop shop floor equipment horses- oil velocity ratio- equipment's- Maintenance of drill gun and efficiency i.e. preventive press pedestal service screw jack maintenance to avoid grinder, valve reface accessories. winch- pulley sudden and major and air compressor. bully block failure- preparing wheel and axle maintenance charts and inclined for machineries and plane. follow up. 47 -do- Repairing of injector Practice on Principle and tester, horses, jacks blue print working of and stands vacuum & reading simple compression gauges machines. maintenance of washing pumps and hydraulic presses phasing and calibrating machine. 48 Simple electrical BASIC Freehand Electricity and circuit-series & ELECTRICAL sketching of its effects static parallel circuits- WORK electrical and dynamic identification of symbols and electricity, AC alternating-current Practice in joining drawing of and DC and direct current wires & soldering - simple differences. meters-insulators and forming simple electrical conductors-types of electrical circuits - circuits. resistance's - ohm's measuring of current, law and its voltage and application-common resistance- cleaning electrical terms and and topping up of a symbols - primary and lead acid battery - secondary cells-lead Testing battery with acid battery hydrometer cell tester description - connecting battery to construction - charger. common troubles and remedy. 49 Description of Studying electrical Freehand Magnets- electrical circuits - circuits in the engine sketching of natural and ignition system and assembly checking ignition circuit artificial types- the components- loose, open and short of a vehicle- poles of purpose of induction circuit in ignition sketching the magnets- coil, condenser, spark circuits-cleaning and circuit-line magnetic fields. plugs - common testing spark plugs- diagram of troubles in ignition overhauling of magneto circuit and remedy. distributor assembly- ignition. checking and setting ignition timing. 50 Description of Removing dynamo Freehand Definition of charging circuit - from vehicle sketching of ampere, volt & operation of dynamo dismantling, cleaning charging ohm-Units of and regulator Unit - checking for defects, system. ampere, volt Ignition warning lamp- assembling and ,ohm, ohm's troubles & remedy in testing for motoring law charging system. action of dynamo & fitting to vehicles. 51 Description of starter Removing starter Sketching Calculation motor circuit- motor vehicle and starter motor based on ohm’s constructional details overhauling the circuit and law of starter motor- starter motor – solenoid solenoid switches – testing of starter switch circuit. common troubles and motor remedy in starter circuit 52 Revision and test ACHIEVEMENTS : The trainee should be able to do 1. Adjust slow speed and maximum sped in the venturi control unit. 2. Test functioning of pneumatic and mechanical governer. 3. Check and adjust injector on test. 4. Repair and maintain shop equipment's. 5. Do simple repairs in the ignition, charging and starting circuits. 6. Follow up safety precautions in doing the above work. ACHIEVEMENTS TO BE OBTAINED BY THE TRAINEES AFTER COMPLETION OF 52 WEEKS TRAINING TRADE COMPETENCE: 1. To measure - Linear dimensions correctly up to + 0.002" or + 0.05 mm should be able to work within a tolerance of + 0.005" 2. To use measuring tools and instruments-Steel rule, calipers, Compass, Trysquare , Feelergauge, Dial Test Indicator, Vernire Calipers, Micrometers, compression Gauge, Vacuum gauge etc. 3. To use hand tools-Hammers, Chisels , Tongs, Wrenches screw Jack, Pulley Block, Pliers, Screw Driver, Pullers. 4. To manipulate machines end accessories-Drilling Machine, Pedestal grinder, Power press, Air compressor, Valve Refacer, 5. To identify hand tools of the trade, basic metals (Ferrous and non-ferrous.) 6. Calculate areas, volumes and weights of simple solid bodies and parts related to the trade-simple estimation and costing. 7. To perform operations-Repairing of Major assemblies of engine-cooling system lubrication feed pump, water pump and oil pump. 8. To locate troubles and rectify:- The engine-mechanical parts, fuel feed system, lubrication system and cooling system. 9. To know, read and understand-simple blue print, reading, making of free hand sketching, use of reference tables, purposes of safety precautions and regulations-use of fire-extinguishers.