careertech.k12.wv.uscareertech.k12.wv.us/documents/ET1740DieselEquipment... · Web viewCLUSTER Engineering and Technical CONCENTRATION Diesel Equipment Technology WVEIS CODE ET 1740

CLUSTER Engineering and Technical

CONCENTRATION Diesel Equipment Technology

WVEIS CODE ET 1740

NATIONAL STANDARDS & INDUSTRY CREDENTIALASE: Medium/Heavy Truck guide, Test T2- Diesel Engines, T6-Electral/Electronic Systems, T8-Preventive Maintenance Inspection.ASE: NATEF-National Automotive Student Skills Standard Assessment- http://www.na3sa.com

Sample of reported job titles upon completion of the concentration: Mechanic, Diesel Mechanic, Bus Mechanic, General Repair Mechanic, Diesel Technician, Truck Mechanic, Service Technician, Preventive Maintenance Technician.

REQUIRED COURSES (In sequence)WVEIS Code Course1751 Fundamentals of Diesel Equipment Technology (preventive

maintenance inspection)1744 Electronic Engine Controls1741 Diesel Engine Components1747 Diesel Support Systems

WVEIS Code ELECTIVE COURSES1743 Diesel Engine Tune Up and Trouble Shooting1749 Diesel Truck Chassis Concepts1625 Brakes1637 Suspension and Steering

SKILLS SETSCareer Preparation SkillsSafetyLeadership DevelopmentCustomer and Personal ServiceLiteracy and NumeracyEngine SystemsCab and HoodElectrical/ElectronicsFrame and ChassisGeneral Engine DiagnosisCylinder Head and Valve Train Diagnosis and RepairEngine Block Diagnosis and RepairLubrication and Cooling Systems Diagnosis and RepairAir Induction and Exhaust Systems Diagnosis and RepairFuel System Diagnosis and RepairGeneral Electrical/Electronic System DiagnosisBattery and Starting System Diagnosis and RepairCharging System Diagnosis and RepairLighting Systems Diagnosis and Repair

1

http://careertech.k12.wv.us/documents/ET1637SuspensionandSteeringDiagnosis_001.doc

http://careertech.k12.wv.us/documents/ET1625BrakeSystems_001.doc

http://careertech.k12.wv.us/documents/ET1749TruckChassisConcepts_001.doc

http://careertech.k12.wv.us/documents/ET1743DieselEngineTune-UpandTroubleshooting_001.doc

http://www.na3sa.com/

Career Preparation, Safety, Leadership Development, Customer Service and Literacy and Numeracy skill sets should be integrated throughout the concentration as remaining skill sets are delivered.

Skill Set Career Preparation SkillsKnowledge Objectives

ET.1

Students will demonstrate knowledge of career paths. goal development and achievement. attitudes and work habits that support career retention and advancement. communication in varied contexts.

Performance Objectives

ET.2ET.3ET.4ET.5ET.6

ET.7ET.8ET.9

ET.10

Students will

relate skills and abilities to possible career pathways. explain methods of goal development. discuss methods of time management and task coordination. practice professionalism in punctuality, appropriate dress, task completion, etc. investigate methods of supervision such as giving and receiving feedback and

instruction. develop and present a statement of their personal work ethic beliefs. prepare an application, cover letter, resume and thank you letter. create a personal portfolio for use when applying for employment. practice simulated job interviews.

Skill Set Safety Knowledge Objectives

ET.11

Students will demonstrate knowledge of

safety procedures. accident reporting agencies. Personal Protective Equipment (PPE).


ET.12ET.13ET.14ET.15ET.16

ET.17ET.18

Students will

recognize the main causes of accidents. research agencies that are responsible for emergencies in the workplace. develop a plan which outlines the procedures for handling an accident. demonstrate operating instructions before using any equipment. establish procedures for safe evacuation of the worksite in the event of an

emergency. follow safety and security procedures. wear PPE as required for specified task.

Skill Set Leadership DevelopmentKnowledge Objectives

ET.19


public speaking. parliamentary law. leadership concepts. characteristics of effective teams and organizations.


ET.20ET.21ET.22

Students will

develop and deliver speeches. participate in meetings using parliamentary procedure. attend leadership conferences and training (local, state and/or national).

2

ET.23ET.24

volunteer in community service opportunities. participate in career development events.

Skill Set Customer and Personal ServiceKnowledge Objectives

ET.25


customer needs assessment. quality standards for services. evaluation of customer satisfaction.


ET.26

ET.27

ET.28

ET.29

ET.30

Students will

confer with customers by telephone or in person to provide information about products or services, take or enter orders, cancel accounts, or obtain details of complaints.

keep records of customer interactions or transactions, recording details of inquiries, complaints, or comments, as well as actions taken.

check to ensure that appropriate changes were made to resolve customers' problems.

determine charges for services requested, collect deposits or payments, or arrange for billing.

refer unresolved customer grievances to designated departments for further investigation.

Skill Set Literacy and NumeracyKnowledge objectives

ET.31


literacy and numeracy skills required to solve complex. real-world problems associated with their career/technical content area . improve their thinking and reasoning skills.


ET.32

ET.33

ET.34

ET.35

Students will

utilize a variety of technical sources (e.g., Internet, manuals, journals, directions, reports, etc.) to complete career/technical assignments and projects.

demonstrate writing skills required to complete career/technical assignments and projects.

demonstrate accuracy in calculating and measuring graphical work required to complete career/technical assignments and projects.

analyze tables, charts, graphs and multiple data sources to complete career/technical assignments and projects.

3

Fundamentals of Diesel Equipment Technology WVEIS 1751

Skill Set Engine SystemsKnowledge Objectives

1751.1


performing a visual inspection of the engine and its systems. initiating a work order for servicing a vehicle. identifying worn and or out or specification components.


1751.2

1751.3

1751.41751.5

1751.6

1751.71751.81751.9

1751.10

1751.11

1751.121751.131751.14

1751.15

1751.161751.17

1751.181751.19

1751.20

1751.21

Students will

review past maintenance/repair documents, driver vehicle condition reports, and brake/tire wear report. check and record electronic diagnostic codes and trip/operational data. clear codes and data.

check engine operation (including unusual noises, vibration, and excessive exhaust smoke); record idle rpm, governed rpm, and pto rpm (if applicable).

inspect vibration damper. inspect condition of belt(s), tensioner(s), and pulley(s); check and adjust belt

tension. check engine for oil, coolant, air, and fuel leaks (engine off and engine

running). inspect engine mounts for looseness and deterioration. check engine oil level and condition; check dipstick seal and fill cap seal. check engine compartment wiring, harnesses, connectors, and seals for damage,

mounting, and proper routing. check fuel tanks, vents, mountings, lines, caps, and seals; check anti-siphon

device (if applicable). inspect water separator/fuel heater; drain water from separator; replace fuel

filter(s); prime and bleed fuel system. inspect crankcase ventilation system. check exhaust system mountings for looseness and damage. check engine exhaust system for leaks, excessive noise, proper routing, and

missing or damaged components (heat shields and guards). check air induction system piping, charge air cooler, hoses, clamps, mountings,

proper routing, and indicators; check for air restrictions and leaks. inspect turbocharger(s) for noise, oil and exhaust leaks; check mountings and connections; check wastegate, variable geometry turbocharger (VGT),

linkages, and hoses. service or replace air filter(s) as needed. inspect diesel emission control systems, including exhaust gas recirculation

(egr). exhaust gas recirculation (egr) cooler, diesel particulate filter (dpf), and/or

catalytic converter. check fan clutch/hub operation, bearing condition and noise (including

viscous/thermostatic, air, and electric fan types); inspect fan assembly and

4

1751.22

1751.231751.241751.25

1751.26

shroud for missing and damaged components. inspect radiator (including air flow restriction, missing/corroded fins, leaks, and

damage) and mountings. inspect coolant hoses and clamps for leaks, damage, and proper routing. inspect coolant recovery system. identify coolant type; check coolant for contamination, supplemental coolant

additives (scas), and protection level (freeze point). inspect water pump for leaks and bearing play.

Skill Set Cab and HoodKnowledge Objectives

1751.27


identifying worn and or out or specification components. electronic testing equipment for diagnostic and repair. initiating a work order for repairs.


1751.281751.291751.301751.31

1751.321751.331751.34

1751.351751.36

1751.371751.38

1751.391751.401751.41

1751.42

1751.431751.441751.451751.461751.471751.481751.49

1751.50

Students will

inspect key condition and check operation of ignition switch. check operation of indicator lights, warning lights and/or alarms. check operation of instruments/gauges and panel lighting. check operation of electronic power take off (pto) and engine idle speed

controls (if applicable). check operation of defroster, heater, ventilation, and a/c (hvac) controls. check operation of all accessories. use diagnostic tool or on-board diagnostic system to read current and historic

diagnostic trouble codes from electronic modules (including engine, transmission, brake, supplemental restraint, traction control and body control systems).

check operation of electric and air horns. check condition of safety equipment, including flares, spare fuses, reflective

triangles, fire extinguisher, and all required decals. inspect seat belts, seat tethers, and sleeper restraints. check supplemental restraint system (srs) for proper warning light operation and

diagnostic trouble codes (if applicable). inspect wiper blades and arms. check wiper and washer operation. check for all required vehicle permits, registration, decals, and inspection

papers. inspect windshield glass for cracks, chips, clarity, discoloration/glazing, or

other damage; check sun visor operation. check seat condition, operation, mounting, and suspension components. check door glass and window operation. inspect steps and grab handles. inspect mirror mountings, brackets, glass, heaters, and motors. inspect and record all observed physical damage. lubricate all cab and hood grease fittings. inspect and lubricate door and hood hinges, latches, strikers, lock cylinders,

linkages, and cables. inspect cab mountings, hinges, latches, linkages; service as needed. inspect tilt cab hydraulic pump, lines, and cylinders for leakage; inspect tilt cab

safety devices; service as needed.5

1751.51

1751.521751.53

1751.541751.55

1751.56

1751.571751.581751.59

check accelerator, clutch, and brake pedal operation and condition. check cab ride height; inspect cab air suspension springs, mounts, hoses, valves,

shock absorbers, and fittings for leaks and damage. inspect front bumper, fairings, and mounts. inspect a/c condenser and lines for condition and visible leaks; check

mountings. inspect a/c compressor and lines for condition and visible leaks; check clutch;

check mountings. check a/c system condition and operation. check HVAC air inlet filters and ducts; service as needed. check auxiliary power unit (APU) operation and mounting; inspect for damage,

leaks, and belt tension.

Skill Set Electrical/ElectronicsKnowledge Objectives

1751.60

Students will demonstrate knowledge of proper use of diagnostic equipment. measuring voltage with volt/Ohm meter.


1751.611751.62

1751.631751.641751.651751.661751.671751.681751.691751.701751.71

1751.72

Students will

inspect battery box(es), cover(s), and mountings. inspect battery hold downs, connections, cables, and cable routing; service as

needed. check and record battery state of charge (open circuit voltage) and condition. perform battery test (load and capacitance). inspect starter, mounting, connections, cables, and cable routing. engage starter; check for unusual noises, starter drag, and starting difficulty. inspect alternator, mounting, wiring, and wiring routing. perform alternator current output test. perform alternator voltage output test. check operation of interior lights; service as needed. check all exterior lights, lenses, and reflectors; check headlight alignment;

service as needed. inspect and test trailer power cord connector, cable, and holder; service as

needed.Skill Set Frame and Chassis

Knowledge Objectives

1751.73


proper use of diagnostic equipment. initiating a work order to repair or replace worn or faulty equipment..


1751.741751.751751.76

1751.771751.78

1751.79

Students will

BRAKES: check air parking brake operation. check and record air governor cut-in and cut-out settings (psi). service air drier as needed. check air drier purge valve operation and air drier

heater, if equipped. check air system for leaks (brakes released). check air system for leaks (brakes applied).

drain air tanks; test one-way and double-check valves.

6

1751.801751.81

1751.821751.831751.841751.85

1751.861751.87

1751.881751.891751.90

1751.911751.921751.93

1751.94

1751.95

1751.961751.971751.981751.99

1751.1001751.101

1751.102

1751.1031751.104

1751.105

1751.1061751.1071751.1081751.109

1751.1101751.1111751.112

check low air pressure warning devices. check spring brake inversion/emergency (spring) brake control valve, if

equipped. check tractor protection valve, if equipped. test air pressure build-up time. check condition and operation of hand brake (trailer) control valve, if equipped. perform antilock brake system (abs) operational system self-test. perform

automatic traction control (atc) operational system self-test, if equipped. inspect coupling air lines, holders, and gladhands. check brake chambers and air lines for secure mountings, damage, and missing

caging plugs. inspect and record front and rear brake lining/pad condition and thickness. inspect condition of front and rear brake drums/rotors. check operation and adjustment of front and rear brake automatic slack

adjusters. check s-camshaft and bushing condition. check master cylinder for leaks and damage; check fluid level and condition. inspect hydraulic brake lines, fittings, flexible hoses, and valves for leaks and damage. check hydraulic parking brake operation; inspect parking brake application and

holding devices. check operation of hydraulic system; pedal travel, pedal effort, and pedal feel

(drift). inspect calipers and/or wheel cylinders for leaks and damage. inspect power brake booster(s), hoses, and control valves. check and/or adjust hydraulic drum brakes. check operation of hydraulic assist back-up system and warning devices.

DRIVETRAIN: check operation of release/throw out bearing and clutch brake. check clutch linkage/cable and levers for looseness or binding; lubricate

release/throwout bearing as required. check clutch master cylinder fluid level; check clutch master cylinder, slave

cylinder, lines, and hoses for leaks and damage. check and/or adjust clutch. check transmission and/or transfer case housing, fasteners, seals, filter, cooler,

and cooler lines for cracks, leaks, and proper routing, if equipped. check transmission wiring, connectors, seals, and harnesses for damage and

proper routing. inspect transmission breather, service as needed. inspect transmission mounts for looseness and deterioration. check transmission oil/fluid level and condition. inspect u-joints, yokes, driveshafts, and center bearings for looseness, damage,

and proper phasing. inspect axle housing(s) for cracks and leaks. inspect axle breather(s); service as needed. check drive axle(s) oil level.

7

1751.1131751.114

1751.1151751.1161751.117

1751.1181751.119

1751.120

1751.1211751.1221751.1231751.1241751.1251751.126

1751.127

1751.128

1751.1291751.130

1751.1311751.1321751.1331751.134

1751.1351751.1361751.1371751.138

1751.1391751.1401751.141

STEERING, TIRES. and WHEELS: check steering wheel and column operation for free play and binding. check power steering pump and hoses for leaks and mounting; check fluid level

and condition. change power steering fluid and filter. inspect steering gear(s) or rack-and-pinion for leaks and mounting. inspect steering shafts and u-joints condition and for proper phasing; inspect

pinch bolts, splines, pitman arm-to-steering sector shaft, drag link, tie rod ends, cross tube, and wheel stops.

check kingpin and thrust bearing wear. check front and rear wheel bearings/hub assemblies for looseness and noise,

including extended service (sealed, close tolerance, and unitized) assemblies.check oil level and condition in all non-drive axle hubs; check for leaks.

adjust wheel bearings as needed (including one and two nut types) in accordance with manufacturer’s specifications.

inspect tires for irregular wear patterns and proper mounting of directional tires. inspect tires for cuts, cracks, bulges, and sidewall damage. inspect valve caps and stems. measure and record tire tread depth; probe for imbedded debris. check and record tire air pressure; adjust as needed. check for loose lugs and/or slipped wheels; check mounting hardware

condition; service as needed. check tire matching (diameter and tread) on dual tire installations.

SUSPENSION, FRAME, and 5th WHEEL: inspect front and rear suspension components (springs, hangers, shackles,

spring u-bolts, insulators, radius rods, torque rods, load pads, walking beams, and equalizers); check u-bolt torque in accordance with manufacturers’ specifications.

inspect shock absorbers for leaks and mounting. inspect air suspension components (air springs/bags, mounts, arms, hoses,

valves, linkage, and fittings) for leaks and damage; check suspension ride height.

inspect operation of tag/pusher axle and components for mounting and damage. lubricate all suspension grease fittings. check tandem axle spacing. inspect fifth wheel mount, bolts, slider, air lines, locks, pivot pins, bushings,

and stops. test operation of fifth wheel locking device; adjust as needed. check mud flaps, brackets, and reflective devices. check pintle hook assembly, mounting bolts, and locks. clean and inspect fifth wheel plate for cracks and damage; lubricate fifth wheel

plate and all grease fittings. inspect frame and frame members for cracks and damage. inspect body attaching hardware. inspect cargo ramps. inspect lift gates, cylinders, controls, hoses, wiring, and

warning decals; check fluid level, service as needed. inspect rear (icc/dot) impact guard.

8

1751.142

9

Electronic Engine Controls WVEIS 1744

Skill Set General Electrical/Electronic System DiagnosisKnowledge Objectives

1744.1


calculating voltage, current, and resistance values using Ohm’s law. testing basic circuits involving fuses, relays, and solenoids. electrical system testing and equipment.


1744.2

1744.3

1744.4

1744.51744.6

1744.7

1744.81744.9

1744.101744.11

1744.12

1744.13

Students will

check applied voltages, circuit voltages, and voltage drops in electrical/electronic circuits using digital multimeter (dmm), or appropriate test equipment.

check current flow in electrical/electronic circuits and components using a digital multimeter (dmm), clamp-on ammeter, or appropriate test equipment.

check continuity and resistance in electrical/electronic circuits and components using a digital multimeter (dmm), or appropriate test equipment.

find shorts, grounds, and opens in electrical/electronic circuits. diagnose key-off battery drain (parasitic draw) problems; determine needed

repairs. inspect and test fusible links, circuit breakers, fuses, and other circuit protection

devices; including reset when required. inspect and test spike suppression diodes/resistors and capacitors. inspect and test relays and solenoids (including solid state devices). read and interpret electrical schematic diagrams and symbols. diagnose failures in the data communications bus network; determine needed

repairs. diagnose vehicle electronic control systems using appropriate diagnostic tools,

software, and service information; check and record diagnostic codes; determine needed repairs.

connect diagnostic tool to vehicle; access and verify parameters and calibration settings; perform updates as needed.

Skill Set Battery and Starting System Diagnosis and RepairKnowledge Objectives

1744.14


maintenance and testing of batteries. maintenance and repair of the starter. using testing equipment to troubleshoot problems.


1744.15

1744.161744.171744.181744.191744.201744.21

Students will

determine battery state of charge by measuring terminal post voltage using a digital multimeter (dmm).

perform battery tests (load and capacitance); determine needed service. inspect, clean, service, or replace battery, cables, and terminal connections. inspect, clean, repair or replace battery boxes, mounts, and hold downs. charge battery using appropriate method for battery type. jump start a vehicle using jumper cables and a booster battery or appropriate auxiliary power supply.

10

1744.221744.23

1744.241744.25

1744.261744.27

1744.28

1744.291744.30

diagnose low voltage disconnect (lvd) systems; determine needed repairs. test/monitor battery and starting system voltage during cranking; determine

needed repairs. perform starting circuit voltage drop tests; determine needed repairs. inspect, test, and replace starter control circuit switches, relays, connectors,

terminals and wires (including thermal over crank protection). diagnose starter cranking inhibit systems; determine needed repairs. inspect, test, and replace starter relays and solenoids/switches including

integrated mag switch (ims). inspect, clean, repair, or replace cranking circuit cables, connectors, and

terminals. remove and replace starter; inspect flywheel ring gear or flex plate. differentiate between electrical and/or mechanical problems that cause a slow

crank, no crank, extended cranking, or a cranking noise condition.Skill Set Charging System Diagnosis and Repair


1744.31


the use of diagnostic equipment to retrieve, diagnose, and repair problems associated with the charging system.


1744.321744.33

1744.34

1744.35

1744.361744.371744.38

Students will

verify operation of charging system circuit monitors; determine needed repairs. diagnose the cause of no charge, low charge, or overcharge conditions;

determine needed repairs. inspect, adjust, and replace alternator drive belts/gears, pulleys, fans, mounting

brackets, and tensioners. perform charging system voltage (ac and dc) and amperage output tests;

determine needed repairs. perform charging circuit voltage drop tests; determine needed repairs. remove and replace alternator. inspect, repair, or replace charging circuit connectors, terminals, and wires.

Skill Set Lighting Systems Diagnosis and RepairKnowledge Objectives

1744.39


lighting circuits maintenance and repair. performing a walk-around to initiate a repair order.


1744.40

1744.411744.42

1744.43

1744.44

1744.45

Students will

diagnose the cause of brighter than normal, intermittent, dim, or no headlight and daytime running light (drl) operation; determine needed repairs.

inspect, replace, and aim headlights and auxiliary lights. inspect, test, repair, or replace headlight switches, dimmer switches, control

components, relays, sockets, connectors, terminals, and wires. inspect, test, repair, or replace truck and trailer lighting circuit switches, bulbs,

light-emitting diodes (leds), sockets, control components, relays, connectors, terminals, and wires.

inspect, test, repair, or replace instrumentation light circuit switches, bulbs, LEDs, sockets, fiber optic cable, circuit boards, connectors, terminals, wires.

inspect, test, repair, or replace interior cab light circuit switches, bulbs, leds,

11

1744.46

1744.47

1744.48

1744.49

1744.50

sockets, connectors, terminals, and wires. inspect, test, adjust, repair, or replace stoplight circuit switches, relays, bulbs,

LEDs, sockets, connectors, terminals, and wires. diagnose the cause of turn signal and hazard light system malfunctions;

determine needed repairs. inspect, test, repair, or replace turn signal and hazard circuit flashers or control

components, switches, relays, bulbs, LEDs, sockets, connectors, terminals, and wires.

inspect, test, adjust, repair, or replace backup light and warning devices, circuit switches, bulbs, LEDs, sockets, connectors, terminals, and wires.

inspect and test trailer light cord connector and cable; determine needed repairs.

12

Diesel Engine Components WVEIS 1741

Skill Set General Engine DiagnosisKnowledge Objectives

1741.1


determining the mechanical condition of engine assembly and its internal components.

interpreting engine performance diagnostic test results. checking for oil leaks or unusual noises. determining the cause of unusual odors and exhaust color from a running

diesel engine.Performance Objectives

1741.2

1741.3

1741.4

1741.5

1741.61741.7

1741.8

1741.9

1741.101741.111741.121741.13

1741.14

1741.15

1741.16

1741.17

1741.18

Students will

verify the complaint, and road/dyno test vehicle; review driver/customer interview and past maintenance documents (if available); determine further diagnosis.

identify engine model and serial number to research applicable vehicle and service information, service precautions, and technical service bulletins; determine needed actions.

inspect engine assembly and compartment for fuel, oil, coolant, exhaust, or other leaks; determine needed repairs.

inspect engine compartment wiring harness, connectors, seals, and locks; check for proper routing and condition; determine needed repairs.

isolate and diagnose engine noises; determine needed repairs. check engine exhaust for odor, smoke color, and density; determine needed

repairs. perform fuel supply and return system tests; check fuel for contamination,

quality, and consumption; determine needed repairs. perform air intake system restriction and leakage tests; determine needed

repairs. perform intake manifold pressure tests; determine needed repairs. perform exhaust back pressure and temperature tests; determine needed repairs. perform crankcase pressure test; determine needed repairs. diagnose no cranking, cranks but fails to start, hard starting, and starts but does

not continue to run problems; determine needed repairs. diagnose surging, rough operation, misfiring, low power, slow deceleration,

slow acceleration, and shutdown problems; determine needed repairs. isolate and diagnose engine related vibration problems; determine needed

repairs. check cooling system for freeze point, level, contamination, coolant type,

temperature, pressure, circulation, conditioner concentration, filtration, and fan operation; determine needed repairs.

check lubrication system for contamination, oil level, temperature, pressure, filtration, and oil consumption; interpret oil analysis information; determine needed repairs.

check and record electronic diagnostic codes and trip/operational data; monitor electronic data; verify customer programmable parameters; clear codes; determine further diagnosis.

perform visual inspection for physical damage and missing, modified, or

13

1741.19 tampered components; determine needed repairs.Skill Set Cylinder Head and Valve Train Diagnosis and Repair


1741.20


identifying worn and/or out or specification cylinder head assembly and components

rebuilding cylinder head and valve train to manufacturer specifications.Performance Objectives

1741.211741.22

1741.23

1741.24

1741.25

1741.26

1741.271741.28

1741.291741.301741.31

Students will

remove, inspect, disassemble, and clean cylinder head assembly(s). inspect threaded holes, studs, and bolts for serviceability; service/ replace as

needed. measure cylinder head thickness, and check mating surfaces for warpage and

surface finish; inspect for cracks/damage; check condition of passages; inspect core and gallery plugs; determine serviceability and needed repairs.

inspect valves, guides, seats, springs, retainers, rotators, locks and seals; determine serviceability and needed repairs.

inspect and/or replace injector sleeves and seals; pressure test to verify repair (if applicable); measure injector tip or nozzle protrusion where specified by manufacturer.

inspect, and/or replace valve bridges (crossheads) and guides; adjust bridges(crossheads) if applicable.

clean components; reassemble, check, and install cylinder head assembly. inspect pushrods, rocker arms, rocker arm shafts, electronic wiring harness, and

brackets for wear, bending, cracks, looseness, and blocked oil passages; repair/ replace as needed.

inspect, install, and adjust cam followers and retainers. adjust valve clearance and injector settings. inspect, measure, and replace/reinstall overhead camshaft and bearings;

measure and adjust endplay and backlash.Skill Set Engine Block Diagnosis and Repair


1741.32


identifying worn out or out of specifications engine block assembly and components.

rebuilding and assembling a short block engine to manufacturer specifications.Performance Objectives

1741.33

1741.34

1741.35

1741.36

1741.37

Students will

remove, inspect, service, and install pans, covers, ventilation systems, gaskets, seals, and wear rings.

disassemble, clean and inspect engine block for cracks; check mating surfaces and related components for damage or warpage and surface finish; check deck height; check condition of passages, core, and gallery plugs; inspect threaded holes, studs, dowel pins and bolts for serviceability; service/replace as needed.

inspect cylinder sleeve counterbore and lower bore; check bore distortion; determine needed service

inspect and measure cylinder walls or liners for wear and damage; determine needed service.

replace/reinstall cylinder liners and seals; check and adjust liner

14

1741.381741.39

1741.40

1741.41

1741.42

1741.431741.441741.451741.46

1741.47

1741.481741.491741.50

height/protrusion. inspect in-block camshaft bearings for wear and damage; replace as needed. inspect, measure, and replace/reinstall in-block camshaft; measure/adjust end

play; inspect, replace/reinstall, and adjust cam followers (if applicable). clean and inspect crankshaft and journals for surface cracks and damage; check

condition of oil passages; check passage plugs; measure journal diameters; check mounting surfaces; determine needed service.

inspect and replace main bearings; check cap fit and bearing clearances; check and correct crankshaft end play.

inspect, reinstall, and time the drive gear train. (includes checking engine position and speed indicator components, gear wear, and backlash of crankshaft, camshaft, auxiliary, drive, and idler gears; service shafts, bushings, and bearings.)

clean, inspect, measure, or replace pistons, pins, and retainers. measure piston-to-cylinder wall clearance. check ring-to-groove fit and end gaps; install rings on pistons. identify piston, connecting rod bearing, and main bearing wear patterns that

indicate connecting rod and crankshaft alignment or bearing bore problems; check bearing bore and bushing condition; determine needed repairs.

assemble pistons and connecting rods and install in block; check piston height/protrusion; replace rod bearings and check clearances; check condition, position, and clearance of piston cooling jets (nozzles).

inspect and measure crankshaft vibration damper; replace as needed. inspect, install, and align flywheel housing. inspect flywheel/flexplate (including ring gear) and mounting surfaces for

cracks, wear, and runout; determine needed repairs.

15

Diesel Support Systems WVEIS 1747

Skill Set Lubrication and Cooling Systems Diagnosis and Repair Knowledge Objectives

1747.1


vehicle’s manufacturer recommended cooling system service schedule. vehicle’s lubrication service schedule. servicing the lubrication and cooling system. analyzing oil sample results taken from diesel engine oil.


1747.2

1747.3

1747.41747.51747.6

1747.71747.81747.9

1747.10

1747.111747.121747.131747.14

1747.151747.16

1747.17

Students will

verify engine oil pressure and check operation of pressure sensor/switch and pressure gauge; verify engine oil temperature and check operation of temperature sensor.

inspect, measure, and repair/replace oil pump, housing, drives, pipes, and screens;

adjust drive gear clearance if applicable. inspect and repair/replace oil pressure regulator valve(s), and by-pass valve(s). inspect, clean, test, and reinstall/replace oil cooler, by-pass valve, oil

thermostat; lines and hoses. inspect turbocharger lubrication and cooling systems; repair/replace as needed. change engine oil and filters; add proper type of oil. inspect and reinstall/replace pulleys, tensioners and drive belts; adjust drive

belts and check alignment. verify coolant temperature and check operation of temperature and level

sensors/switch, and temperature gauge. inspect and replace thermostat(s), by-passes, housing(s), and seals. flush and refill cooling system; bleed air from system; recover coolant. inspect and repair/replace coolant conditioner/filter, valves, lines, and fittings. inspect and repair/replace water pump, housing, hoses, and idler pulley or drive

gear. inspect radiator, pressure cap, and tank(s); determine needed service. inspect and repair/replace fan hub, fan, fan clutch, fan controls, fan thermostat,

and fan shroud. pressure test cooling system and radiator cap; determine needed repairs.

Skill Set Air Induction and Exhaust Systems Diagnosis and RepairKnowledge Objectives

1747.18

Students will demonstrate knowledge of servicing and repairing components of air induction and exhaust systems, inspecting, repairing and replacing turbo charger.


1747.19

1747.20

1747.21

1747.22

Students will

inspect and service/replace air induction piping, air cleaner, and element; check for air restriction.

inspect, test, and replace turbocharger(s) (including variable ratio/geometry vgt), pneumatic, hydraulic, and electronic controls and actuators; inspect, test, and replace wastegate and wastegate controls.

inspect and repair/replace intake manifold, gaskets, temperature and pressure sensors, and connections.

inspect, test, clean, replace charge air cooler and piping system.

16

1747.23

1747.24

1747.25

1747.26

inspect and repair/replace exhaust manifold, gaskets, piping, mufflers, exhaust after treatment devices, (including three-way and oxidation catalyst and diesel particulate filters dpf) and mounting hardware.

inspect, test, and repair/replace preheater/inlet air heater, or glow plug system and controls.

inspect, test, and replace exhaust after treatment regeneration system and controls.

inspect, test, service, and replace exhaust gas recirculation (egr) system components; including egr valve, cooler, piping, filter, sensors, controls, and wiring.

Skill Set Fuel System Diagnosis and RepairKnowledge Objectives

1747.27


inspecting and identifying worn out or out of specification diesel fuel system components.

repairing and or replacing fuel system components. diagnosing problems using electronic test equipment.


1747.28

1747.29

1747.30

1747.31

1747.32

1747.33

1747.34

1747.35

1747.36

1747.37

1747.38

1747.391747.401747.41

Students will

inspect, test, and repair/replace fuel system tanks, vents, caps mounts, valves,single/dual supply and return lines, and fittings.

inspect, clean, test, and repair/replace fuel transfer (supply) pump, pump drives, strainers, fuel/water separators/indicators, filters, heaters, coolers, ecm cooling plates, and mounting hardware. (protect fuel system components from contamination),

check fuel system for air; determine needed repairs; prime and bleed fuel system; check, repair/replace primer pump.

inspect, test, and repair/replace low-pressure regulator systems (check valves,pressure regulator valves and restrictive fittings).

inspect and reinstall/replace high-pressure injection lines, fittings, seals, andmounting hardware. (protect high-pressure injection components fromcontamination).

inspect, adjust, and repair/replace electronic throttle and pto control devices,circuits, and sensors.

perform on-engine inspections, tests, and adjustments on hydraulic electronic unit injectors (heui) and electronic controls (rail pressure control).

perform on-engine inspections, tests and adjustments on electronic unit injectors (eui) and electronic controls.

perform on-engine inspections and tests, on high-pressure common rail fuel systems and electronic controls.

inspect, test, and replace engine protection and automatic stop/restart system components.

inspect and replace electrical connector terminals, pins, harnesses, seals, and locks.

connect diagnostic tool to vehicle/engine; access and verify programmable parameters; change if applicable. use a diagnostic tool (hand-held or pc based) to inspect and test electronic

engine control system, sensors, actuators, electronic control modules (ecms), and circuits; determine further diagnosis.

measure and interpret voltage, voltage drop, amperage, and resistance readings using a digital multimeter or appropriate test equipment.

17

1747.42

18

Documents

careertech.k12.wv.uscareertech.k12.wv.us/documents/ET1740DieselEquipment... · Web viewCLUSTER Engineering and Technical CONCENTRATION Diesel Equipment Technology WVEIS CODE ET 1740